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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
16 sq mm Copper Ring Lug Cable Terminal
[Terminal Connector] 16 sq mm Pure Copper Ring Lug Cable Terminal The 16 sq mm Pure Copper Ring Lug Cable Terminal is a high-quality electrical cable lug designed for making secure and reliable connections in high-current electrical systems. Made from pure copper, it provides excellent electrical conductivity and a strong mechanical connection between the cable and the terminal point. The ring lug design allows the terminal to be securely fastened to battery terminals, busbars, studs, bolts, and other electrical connection points. It is suitable for battery packs, inverters, UPS systems, solar installations, automotive wiring, and industrial electrical applications. The compact construction provides a reliable connection while allowing easy installation using a suitable crimping tool. The terminal is ideal for applications where a strong and low-resistance electrical connection is required. ⭐ Key Features Made from pure copper Designed for 16 sq mm cable Ring lug terminal design Excellent electrical conductivity Strong and reliable mechanical connection Suitable for high-current applications Easy bolt and stud mounting Suitable for battery and power wiring Ideal for electrical and DIY applications 📋 Technical Specifications Product Type: Copper Ring Cable Lug Material: Pure Copper Compatible Cable Size: 16 sq mm Terminal Type: Ring Lug Finish: Natural Copper / Tinned, depending on variant Connection Type: Bolt / Stud Mount Application: High-Current Electrical Connections 🔧 Applications Lithium Battery Packs LiFePO₄ Battery Systems Lead-Acid Batteries Inverter Connections UPS Systems Solar Power Systems Automotive Wiring Electrical Panels Power Distribution Industrial Wiring DIY Battery Projects 📦 Package Includes 1 × 16 sq mm Pure Copper Ring Lug Cable Terminal ⚠️ Precautions Select the correct lug according to the 16 sq mm cable size and required mounting hole diameter. Use a suitable cable-lug crimping tool for a secure connection. Ensure the cable is properly inserted and crimped before use. Do not exceed the safe current capacity of the cable and terminal assembly. Ensure all electrical connections are properly insulated and secured.
Keltron 3300uF 25V Radial Electrolytic Capacitor High Performance Capacitor
[Through Hole Capacitor] The Keltron 3300uF 25V Electrolytic Capacitor is a high-performance aluminum electrolytic capacitor designed for energy storage, voltage filtering, and ripple suppression applications. It is widely used in power supply circuits, audio amplifiers, inverter systems, battery chargers, and industrial electronics. In addition, the capacitor provides excellent filtering capability by reducing voltage fluctuations and unwanted electrical noise. As a result, it helps improve circuit stability and enhances overall system performance. Because of its 3300uF high capacitance value, the capacitor is ideal for smoothing DC power rails and handling transient current demands. Furthermore, the 25V DC voltage rating makes it suitable for a variety of low-voltage electronic applications. The radial lead design allows easy PCB installation and secure mounting. Moreover, Keltron capacitors are known for their dependable quality, stable electrical characteristics, and long operational life. This capacitor is commonly used in audio amplifier power supplies, SMPS circuits, LED power supplies, inverter systems, battery chargers, and DIY electronics projects. 🔹 Key Features Genuine Keltron capacitor High capacitance 3300uF value Rated voltage of 25V DC Excellent ripple filtering performance Suitable for audio and power supply circuits Low leakage current Long operational life Radial lead through-hole design Reliable and stable performance 🔹 Technical Specifications Brand: Keltron Product Type: Electrolytic Capacitor Capacitor Type: Aluminum Electrolytic Capacitance: 3300uF Rated Voltage: 25V DC Tolerance: ±20% Mounting Type: Through-Hole (Radial Lead) Polarized: Yes Lead Type: Radial Operating Temperature: Up to 105°C (Series Dependent) Application: Filtering, Decoupling, Energy Storage 🔹 Applications This capacitor is suitable for: Audio amplifier circuits Power supply filtering SMPS circuits Inverter systems Battery chargers LED driver circuits Industrial electronics DIY electronics projects Electronic repair applications 🔹 Package Includes 1 × Keltron 3300uF 25V Radial Electrolytic Capacitor
Nickel Strip 0.12mm × 5mm 1P Plane Coated Nickel Welding Strip for 18650 Lithium Battery Pack – 1 Meter
[Nickel Strip] The Nickel Strip 0.12mm × 5mm 1P Plane Coated Nickel Welding Strip is specially designed for assembling and repairing 18650 lithium battery packs and other rechargeable battery modules. Made from nickel-coated steel, this strip provides a strong mechanical bond, good electrical conductivity, and excellent weldability. Its flat 1P plane design ensures stable current flow and reliable cell connections. The nickel coating protects against rust and corrosion, making it suitable for long-term use in power banks, e-bike battery packs, solar storage systems, UPS batteries, and DIY lithium battery projects. Supplied in a convenient 1 meter length, this strip is easy to cut, bend, and shape according to your battery pack layout. 🔹 Key Features Made from nickel-coated steel for strength and durability Size: 0.12mm thickness × 5mm width Flat 1P plane strip design Good electrical conductivity and strong weld joints Excellent for spot welding lithium battery cells Corrosion-resistant nickel coating Easy to cut, bend, and form Suitable for 18650, 21700, 26650 lithium cells 🔹 Technical Specifications Material: Nickel-coated steel (Coated Nickel) Thickness: 0.12 mm Width: 5 mm Type: 1P Plane Flat Strip Length: 1 Meter Color: Silver Application: Spot welding for lithium battery packs Compatible Cells: 18650, 21700, 26650 and similar cylindrical cells Conductivity: Good Corrosion Resistance: High (nickel-coated surface) 🔹 Applications 18650 lithium battery pack assembly Power bank manufacturing and repair E-bike and electric vehicle battery packs Solar battery storage systems UPS and inverter battery packs DIY lithium battery projects Battery repair and maintenance 🔹 Package Contents 1 × Coated Nickel Welding Strip (0.12mm × 5mm, Length: 1 Meter)
Nickel Strip 0.12mm × 4mm 1P Plane Coated Nickel Welding Strip for 18650 Lithium Battery Pack – 1 Meter
[Nickel Strip] The Nickel Strip 0.12mm × 4mm 1P Plane Coated Nickel Welding Strip is specially designed for assembling and repairing 18650 lithium battery packs and other rechargeable battery modules. Made from nickel-coated steel, this strip provides a strong mechanical bond, good electrical conductivity, and excellent weldability. Its flat 1P plane design ensures stable current flow and reliable cell connections. The nickel coating protects against rust and corrosion, making it suitable for long-term use in power banks, e-bike battery packs, solar storage systems, UPS batteries, and DIY lithium battery projects. Supplied in a convenient 1 meter length, this strip is easy to cut, bend, and shape according to your battery pack layout. 🔹 Key Features Made from nickel-coated steel for strength and durability Size: 0.12mm thickness × 4mm width Flat 1P plane strip design Good electrical conductivity and strong weld joints Excellent for spot welding lithium battery cells Corrosion-resistant nickel coating Easy to cut, bend, and form Suitable for 18650, 21700, 26650 lithium cells 🔹 Technical Specifications Material: Nickel-coated steel (Coated Nickel) Thickness: 0.12 mm Width: 4 mm Type: 1P Plane Flat Strip Length: 1 Meter Color: Silver Application: Spot welding for lithium battery packs Compatible Cells: 18650, 21700, 26650 and similar cylindrical cells Conductivity: Good Corrosion Resistance: High (nickel-coated surface) 🔹 Applications 18650 lithium battery pack assembly Power bank manufacturing and repair E-bike and electric vehicle battery packs Solar battery storage systems UPS and inverter battery packs DIY lithium battery projects Battery repair and maintenance 🔹 Package Contents 1 × Coated Nickel Welding Strip (0.12mm × 4mm, Length: 1 Meter)
Nickel Strip 0.15mm × 6mm 1P Pure Nickel Welding Strip for 18650 Lithium Battery Pack – 1 Meter
[Nickel Strip] The Nickel Strip 0.15mm × 6mm 1P Pure Nickel Welding Strip is specially manufactured for building and repairing 18650 lithium battery packs and other rechargeable battery assemblies. Made from high-purity nickel, this strip offers low electrical resistance, excellent conductivity, and strong spot-welding performance. Its flat 1P plane design ensures uniform current flow and reliable connections between battery cells. The strip is corrosion-resistant and durable, making it ideal for long-term use in power banks, e-bike battery packs, solar storage systems, UPS batteries, and DIY lithium battery projects. Supplied in a convenient 1 meter length, this strip is easy to cut and shape according to your battery pack design. 🔹 Key Features Made from pure nickel (not nickel-plated steel) Size: 0.15mm thickness × 6mm width Flat 1P plane strip for uniform current flow Excellent conductivity with low internal resistance Strong and reliable for spot welding Corrosion-resistant and long-lasting Easy to cut, bend, and shape Perfect for 18650, 21700, 26650 lithium battery packs 🔹 Technical Specifications Material: Pure Nickel Thickness: 0.15 mm Width: 6 mm Type: 1P Plane Flat Strip Length: 1 Meter Color: Silver Application: Spot welding for lithium battery packs Compatible Cells: 18650, 21700, 26650 and similar cylindrical cells Resistance: Very low (high conductivity) Corrosion Resistance: Excellent 🔹 Applications 18650 lithium battery pack assembly Power bank manufacturing and repair E-bike and electric vehicle battery packs Solar battery storage systems UPS and inverter battery packs DIY lithium battery projects Battery repair and maintenance 🔹 Package Contents 1 × Pure Nickel Welding Strip (0.15mm × 6mm, Length: 1 Meter)
Battery Voltage Wire 7/36 Black & Red 1 Meter – Flexible Copper Hook-Up Wire (Pair)
[Hook up wire] The Battery Voltage Wire 7/36 Black & Red is a high-quality flexible hook-up wire specially designed for battery connections, low-voltage power lines, and electronic circuits. Made with 7 strands of 36-gauge copper, this wire provides excellent conductivity, durability, and flexibility for easy routing in compact spaces. The wire comes in red and black insulation, making it perfect for identifying positive and negative terminals in battery packs, power supplies, inverters, chargers, and DIY electronics projects. With strong PVC insulation and fine stranded copper core, this wire is suitable for low-current DC applications, hobby electronics, Arduino projects, robotics, and general internal wiring. 🔹 Key Features High-quality 7/36 stranded copper conductor Red & Black color for easy polarity identification Highly flexible and easy to bend and route Low resistance for stable voltage transmission Durable PVC insulation for long life Ideal for low-voltage and low-current applications Suitable for DIY electronics, battery packs, and repair work 🔹 Technical Specifications Wire Type: Hook-up / Battery Voltage Wire Conductor Size: 7 / 36 (7 strands of 36 AWG) Material: Pure copper stranded core Insulation: PVC Color: Red & Black Rated Voltage: Up to 300V (typical) Current Rating: Low current applications Flexibility: High Application Type: DC wiring, battery leads, signal & power lines 🔹 Applications Battery pack connections Arduino and microcontroller projects Power supply wiring Robotics and automation Inverter and charger wiring (low current) DIY electronics and prototyping Repair and internal equipment wiring 🔹 Package Contents 1 × Red 7/36 Battery Wire 1 × Black 7/36 Battery Wire
Copper Lug 25mm | 25 Sq mm Copper Terminal
[Battery Connector] 25 sq mm Pure Copper Ring Lug Cable Terminal The 25 sq mm Pure Copper Ring Lug Cable Terminal is a high-quality electrical cable lug designed for making secure and reliable cable connections in high-current electrical systems. Made from pure copper, this ring terminal provides excellent electrical conductivity and a strong mechanical connection. The ring-type terminal design allows the lug to be securely fastened to battery terminals, busbars, studs, bolts, and other electrical connection points. It is widely suitable for battery packs, inverters, UPS systems, solar power installations, automotive wiring, and industrial electrical applications. Available in natural copper or tinned finish depending on the variant, the terminal provides reliable performance for power distribution and high-current cable connections. ⭐ Key Features Made from pure copper Designed for 25 sq mm cable Ring lug terminal design Excellent electrical conductivity Strong and reliable mechanical connection Suitable for high-current applications Easy bolt and stud mounting Available in natural copper / tinned finish Suitable for battery and power wiring 📋 Technical Specifications Product Type: Copper Ring Cable Lug Material: Pure Copper Compatible Cable Size: 25 sq mm Terminal Type: Ring Lug Finish: Natural Copper / Tinned, depending on variant Connection Type: Bolt / Stud Mount Application: High-Current Electrical Connections 🔧 Applications Lithium Battery Packs Lead-Acid Batteries LiFePO₄ Battery Systems Inverter Connections UPS Systems Solar Power Systems Automotive Wiring Electrical Panels Power Distribution Industrial Wiring DIY Battery Projects 📦 Package Includes 1 × 25 sq mm Pure Copper Ring Lug Cable Terminal ⚠️ Note Select the correct lug size according to your cable cross-section and mounting stud diameter. Use an appropriate crimping tool to achieve a secure connection. Ensure the cable is properly crimped before connecting to a high-current circuit. Finish may be natural copper or tinned copper depending on the selected variant.
Out of stockHigh Quality Ultra Flexible 8 AWG Silicone Wire 1m (Red) + 1m (Black)
[Silicon Wire] Upgrade your high-power electronics projects with this High Quality Ultra Flexible 8 AWG Silicone Wire Set, including 1 meter Red + 1 meter Black. Made from premium tinned copper and heat-resistant silicone insulation, this wire offers exceptional flexibility, durability, and conductivity—perfect for high-current applications. The soft silicone jacket allows easy routing even in tight spaces, while providing superior heat resistance up to 200°C, making it ideal for RC vehicles, drones, robotics, lithium battery packs, inverters, chargers, ESCs, solar systems, and other high-load circuits. Whether you're building custom battery packs or upgrading your power wiring, this 8 AWG silicone wire provides low resistance, high amp handling, and long-lasting performance. Please find out our more cable and wires. Click here Note : 1 Qty = 1 Meter. Cable length will be continuous as per your ordered Qty. ⭐ Key Features Ultra Flexible 8 AWG Wire – Easy to bend and route in tight spaces Premium Silicone Insulation – Heat resistant, durable, oil-resistant and flame-retardant High Strand Count Tinned Copper – Superior conductivity & corrosion resistance High Current Handling – Suitable for heavy-load applications Includes: 1m Red + 1m Black silicone wire Low Resistance – Ensures efficient power transfer Perfect for RC, drones, battery packs, inverters, and ESC wiring 🔧 Typical Specifications Wire Gauge: 8 AWG Length: 1m Red + 1m Black Material: High-strand tinned copper Insulation: Soft silicone rubber Temperature Rating: Up to 200°C Voltage Rating: 600V (typical) Flexibility: Ultra soft, high bend endurance Package Includes : 1 x High Quality 8 AWG Silicone Wire 1m (Red) 1 x High Quality 8 AWG Silicone Wire 1m (Black)
Out of stockTDT 10S 20A NMC Battery Protection and Charger BMS with Balance Hardware
TDT BMS NMC 10S 20A WITH BALANCE Hardware Product Data Sheet The BMS NMC 10S 20A WITH BALANCE (TDT) is a robust and efficient Battery Management System designed for 10-series (10S) lithium-ion NMC battery packs. With a nominal system voltage of 37V and a continuous current capacity of 20A, this module ensures safe and stable operation of high-performance battery packs used in e-mobility, energy storage, and industrial tools. Technical Specifications Battery Chemistry: Lithium-ion (NMC) Configuration: 10S (10 cells in series) input Voltage B+ to B-: -0.3~+20V Overcharge Detection voltage/1CELL: 4.28±0.05V Over discharge Detection voltage/1CELL: 2.8±0.1V Over current: 4-6A Suggest working temperature: -20°C~+60°C Key Features 20A High Current Support Perfect for mid-to-high power battery packs used in electric bikes, scooters, power tools, and solar inverters. Built-in Balancing Function Automatically maintains uniform voltage across all cells to extend overall battery life. Comprehensive Protections Protects against overcharge, over-discharge, overcurrent, short circuit, and thermal runaway. Durable Aluminum Heat Sink Casing Helps dissipate heat effectively for stable thermal performance. Applications Electric Bicycles & Scooters (E-Bikes) Solar Battery Packs & Inverters DIY 10S Battery Pack Projects Cordless Industrial Tools Electric Wheelchairs & Mobility Carts The PCM NMC 10S 20A WITH BALANCE (TDT) is a Battery Protection Circuit Module (PCM) designed for 10 series Nickel Manganese Cobalt (NMC) battery packs, supporting a 20A continuous discharge current. This module is ideal for high-power applications such as energy storage systems, backup power solutions, and electric vehicles. It offers essential protection features, including overcharge, over-discharge, overcurrent, short circuit, and temperature protection, ensuring the safe operation of the battery. The WITH BALANCE feature ensures proper voltage balancing across the cells, optimizing performance and extending the battery’s lifespan. The TDT designation indicates a specific manufacturer or design for reliable battery management.
RC3563 Battery Internal Resistance Tester – Handheld Battery Analyzer
[Battery Capacity Tester] RC3563 Battery Internal Resistance Tester – High Precision Battery Resistance & Voltage Meter The RC3563 Battery Internal Resistance Tester is a professional handheld measuring instrument designed for accurate testing of battery internal resistance, battery voltage, and low-value resistance. Using the Kelvin 4-wire measurement method, it minimizes errors caused by lead and contact resistance, providing stable and precise readings. Featuring an LCD display, USB rechargeable operation, and a compact portable design, the RC3563 is suitable for testing Li-ion, LiFePO₄, NiMH, NiCd, Lead-Acid batteries, capacitors, resistors, and other low-resistance components. It is ideal for battery maintenance, EV battery inspection, manufacturing, laboratories, electronics repair, and DIY applications. ⭐ Key Features Simultaneous measurement of internal resistance and voltage High-precision Kelvin 4-wire testing technology Low-resistance measurement capability Clear LCD digital display Portable handheld design 5V USB rechargeable operation Stable and accurate measurement algorithm Suitable for lithium, nickel, and lead-acid batteries Suitable for capacitor and resistor low-resistance testing Ideal for laboratory, industrial, repair, and DIY applications 📋 Technical Specifications Product Type: Battery Internal Resistance Tester Model: RC3563 Measurement Type: Internal Resistance & Voltage Test Method: Kelvin 4-Wire Display: LCD Screen Charging Input: 5V DC Power Supply: Built-in Rechargeable Battery Supported Batteries: Lithium, LiFePO₄, Nickel, Lead-Acid Additional Function: Low Resistance Measurement Design: Handheld Portable Device 🔧 Applications 18650 Battery Testing 21700 Battery Testing Lithium Battery Testing LiFePO₄ Battery Testing Battery Pack Testing EV Battery Inspection UPS & Inverter Battery Testing Lead-Acid Battery Diagnostics Battery Manufacturing & Quality Control Electronics Repair & Servicing Laboratory Testing Capacitor Testing Low Resistance Measurement ⚠️ Precautions Ensure correct polarity when connecting the test probes. Do not short-circuit the test leads. Use only a 5V charging input. Handle the test clips carefully for accurate measurements. Keep the tester away from water and excessive humidity. Avoid extreme temperatures. 📦 Package Includes 1 × RC3563 Battery Internal Resistance Tester 1 × Kelvin 4-Wire Test Lead Set 1 × USB Charging Cable 1 × User Manual
4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module 4S 40A
[Lithium Battery Protection Board] The 4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module comes with recovery function – AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 40A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (If the cooling environment is not good, please reduce the load current use). The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650, 26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance). The Board which can be easily installed in a compact size or on battery bundle itself. Note: The Successful start of the drill requires a three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!). Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. The Discharge test, the voltage drop faster battery that group is a poor battery. Features: 4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery). Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery). Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version). Charging voltage: 16.8V – 18.1V. Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use). Continuous charge current (upper limit): 20A. Equalization version: suitable for starting current below 80A, power 135W below the drill. Package Includes: 1 x 4 Series 40A 18650 Lithium Battery Protection Board.
TDT LiFePO4 LFP 4S 12.8V 10A Battery Management System
[Lithium Battery Protection Board] The TDT LiFePO4 LFP 4S 12.8V 10A Battery Management System (BMS) is designed to protect and manage 4-cell LiFePO4 battery packs (12.8V nominal). It ensures safe charging and discharging by providing multiple protection functions, improving battery life and safety. This BMS board is ideal for solar energy storage, backup power systems, DIY battery packs, electric vehicles, power banks, and inverter systems using LiFePO4 cells. The board continuously monitors each cell voltage and controls charge/discharge current to prevent damage caused by overcharging, deep discharge, overcurrent, or short circuits. 🔹 Key Features Designed for 4S LiFePO4 (12.8V nominal) battery packs Continuous discharge current: 10A Overcharge protection Over-discharge protection Overcurrent protection Short-circuit protection Cell balancing function Compact and lightweight design Improves battery safety and lifespan 🔹 Technical Specifications Brand: TDT Battery Type: LiFePO4 (LFP) Series Configuration: 4S Nominal Voltage: 12.8V Maximum Charging Voltage: 14.6V Continuous Discharge Current: 10A Overcharge Protection Voltage: ~3.65V ± 0.05V per cell Over-discharge Protection Voltage: ~2.5V ± 0.1V per cell Balancing Function: Yes Short Circuit Protection: Yes Operating Temperature: -20°C to +60°C 🔹 Applications 12.8V LiFePO4 battery packs Solar storage systems UPS systems Inverter battery packs Electric scooters / small EVs DIY power backup systems Portable power stations 🔹 Wiring Instructions (Basic) B- → Battery Pack Negative B1 → Cell 1 Positive B2 → Cell 2 Positive B3 → Cell 3 Positive B4 → Cell 4 Positive P- → Output Negative P+ → Output Positive (Battery Positive) ⚠ Always connect balance wires in correct sequence to avoid damage. 🔹 Package Includes 1 × TDT 4S 12.8V 10A LiFePO4 BMS Board
NEEY Active Balancer 24S 2A Lithium Battery Active Equalizer
[Lithium Battery Protection Board] NEEY Active Balancer 24S 2A – 24S Lithium Battery Active Equalizer The NEEY Active Balancer 24S 2A is an advanced battery active balancing module designed to improve cell voltage consistency and overall battery pack performance. It transfers energy between individual cells to help maintain a more balanced battery pack, reducing cell voltage differences and improving usable capacity, battery life, and overall system stability. With support for a wide 1.8V–4.5V cell voltage range, this active balancer is suitable for various lithium battery chemistries including LiFePO₄, Lithium-ion, and LTO battery packs. It is particularly suitable for high-capacity battery systems used in electric vehicles, e-rickshaws, e-bikes, solar energy storage, and other battery applications. The product specification identifies this model as a 24S Active Balancer with 2A balancing current, making it suitable for battery packs with up to 24 cells connected in series. ⭐ Key Features 24S Active Battery Balancer 2A balance current as specified for this model Active energy transfer between cells Supports cell voltage from 1.8V to 4.5V Compatible with LiFePO₄, Lithium-ion & LTO batteries High voltage measurement accuracy of approximately ±5mV Helps reduce cell voltage imbalance Improves battery pack performance and usable capacity Helps extend battery pack service life Low power consumption Suitable for high-capacity battery packs Ideal for EV, solar, and battery storage applications 📋 Technical Specifications Product Type: Active Battery Balancer Model: NEEY Active Balancer 24S 2A Item Code: 26001527 Category: Active Balancer Unit of Measure: PCS Series Support: Up to 24S Balance Current: 2A Cell Voltage Range: 1.8V–4.5V Voltage Accuracy: ±5mV Sleep Current: <0.1mA Working Current: Approx. 12mA Battery Chemistry: LiFePO₄, Lithium-ion, LTO Balancing Type: Active Energy Transfer 🔧 Applications LiFePO₄ Battery Packs Lithium-Ion Battery Packs LTO Battery Packs E-Rickshaw Batteries E-Bike Batteries Electric Vehicle Battery Packs Solar Inverter Battery Systems Energy Storage Systems High-Capacity Battery Packs 30Ah–300Ah Battery Applications DIY Battery Projects Battery Pack Maintenance & Optimization ⚡ Benefits of Active Balancing Active balancing transfers energy from higher-voltage cells to lower-voltage cells instead of simply dissipating excess energy as heat. This helps maintain better cell voltage balance and can improve the usable capacity and consistency of a multi-cell battery pack. 📦 Package Includes 1 × NEEY Active Balancer 24S 2A ⚠️ Important Note The supplied product information mentions 0–5.5A active balancing technology as a key feature, while the specific technical specification for this product lists the balance current as 2A. For this listing, the model-specific specification of 2A balance current should be used.
0.28 inch Digital Voltmeter Ammeter DC 100V 50A LED Amp Volt Meter With Shunt
[Ammeter and Voltmeter] The 0.28 Inch Digital DC Voltmeter Ammeter 100V 50A with Shunt is a compact and high-accuracy dual LED panel meter designed to measure DC voltage and current simultaneously on a single display. With a measurement range of up to 100V DC and 50A, this meter is ideal for monitoring battery systems, power supplies, solar setups, chargers, and DIY electronics projects. This panel meter features a bright dual LED display that clearly shows voltage and current values at the same time, making real-time monitoring easy and convenient. Its small size and lightweight design allow easy installation in panels, enclosures, and control boxes. The module comes with two wiring harnesses — one for powering the meter (red and black pair) and another for measurement and shunt connection. The meter operates from an independent 5V power supply (recommended) for best accuracy. While it can be powered from 6–30V DC, using the same supply as the measured source may slightly affect current readings. A 50A external shunt is included for accurate current measurement. Different wiring variants may be shipped, but functionality remains the same. This meter is an excellent choice for battery packs, solar systems, DC power supplies, electric vehicles, inverters, and lab projects. ⭐ KEY FEATURES ✔ Measures DC Voltage up to 100V✔ Measures DC Current up to 50A (with included shunt)✔ Dual LED Display – Shows volts & amps simultaneously✔ 0.28 Inch Compact Panel Size✔ High resolution 0.1V measurement✔ Small, lightweight & easy to install✔ Separate power input harness for stable readings✔ Ideal for battery & DC system monitoring✔ Brand new, high-quality module 🔧 TECHNICAL SPECIFICATIONS Display Size: 0.28 inch LED Voltage Measurement Range: 0 – 100V DC Current Measurement Range: 0 – 50A DC Voltage Resolution: 0.1V Meter Power Supply: 5V DC (recommended) Supply Range: 6V – 30V DC (separate supply preferred) Display Type: Dual LED (Volt + Amp) Shunt: External 50A shunt included Mounting Type: Panel mount Wiring: Dual harness (power + measurement) ⚠️ IMPORTANT NOTES Use a separate 5V supply for best accuracy If input voltage is above 5V, use a buck converter Wiring color/order variants may differ but function is same Incorrect wiring can damage the module 🎯 APPLICATIONS Battery monitoring systems Solar power setups DC power supplies EV & e-bike systems Inverter projects DIY electronics labs Charging stations 📦 PACKAGE INCLUDES 1 × 0.28″ Dual LED DC Volt Ammeter Panel Meter 1 × 50A Current Shunt
T Handle Connector for SB50 Anderson Connector – Grey
[Power Connector] T-Handle for SB50 Anderson Connector The T-Handle for SB50 Anderson Connector is a durable and convenient accessory designed to make connecting and disconnecting SB50-style 2-pole power connectors easier. Its ergonomic T-shaped design provides a firm grip and improved leverage, allowing the connector to be removed smoothly without pulling directly on the cables. ⭐ Key Features Designed for SB50 Anderson-style connectors Ergonomic T-shaped handle Provides a firm and comfortable grip Makes connector removal easier Helps reduce strain on connector cables Easy bolt-on installation Durable construction Suitable for frequent connector connection/disconnection 📋 Technical Specifications Product Type: Anderson Connector T-Handle Compatible Connector: SB50 Connector Type: 2-Pole Rated Current: Up to 50A for SB50 Handle Type: T-Shape Pull Handle Color: Grey Mounting: Bolt-On Application: Connector Insert & Pull 🔧 Applications Battery Packs Solar Power Systems Inverters UPS Systems Electric Vehicles Golf Carts Electric Scooters Trailers Caravan & RV Systems Automotive Power Connections DIY Battery Projects 📦 Package Includes 1 × T-Handle for SB50 Anderson Connector Mounting Bolts Nuts
3 Series 20A 18650 Lithium Battery Protection Board 11.1V 12V 12.6V Good Quality
[Lithium Battery Protection Board] 3S 20A 18650 Lithium Battery Protection Board with Balance – 11.1V/12.6V The 3 Series 20A 18650 Lithium Battery Protection Board is designed for building and protecting 3S lithium-ion battery packs using 3.6V/3.7V cells such as 18650, 26650, and compatible lithium-polymer cells. It features automatic recovery, balanced charging, and 20A continuous charge/discharge capability. The board uses 10 low-resistance MOSFETs and provides approximately 100mA balancing current. ⭐ Key Features 3S lithium-ion battery protection board Suitable for 11.1V nominal / 12.6V fully charged battery packs Supports 3.6V/3.7V lithium-ion cells Compatible with 18650, 26650 and compatible Li-ion/Li-Po cells 20A maximum continuous discharge current 20A maximum continuous charge current Built-in 100mA balance function Automatic recovery after protection operation Integrated 10 low-resistance MOSFETs Suitable for compact DIY battery-pack construction Designed for applications such as drills, sprayers, LED lights and low-power inverters 📋 Technical Specifications Product Type: 3S Lithium Battery Protection Board / BMS Battery Configuration: 3 cells in series (3S) Compatible Battery: 3.6V/3.7V Li-ion cells Battery Pack Voltage: 11.1V nominal Full Charge Voltage: 12.6V Continuous Discharge Current: Up to 20A Continuous Charge Current: Up to 20A Balance Current: Approximately 100mA Balance Function: Yes Recovery Function: Automatic recovery MOSFET: 10 low-resistance MOS tubes Charging Voltage: 12.6V for the completed 3S pack Board Size: Approximately 46 × 60 × 3.4mm Compatible Cells: 18650, 26650 and compatible lithium-polymer cells 🔧 Applications 3S 18650 battery packs DIY rechargeable battery packs Electric drills Battery-powered sprayers LED lighting systems Low-power DC inverters Portable electronic projects Robotics and DIY power systems 🛠️ Wiring The balance connection points should be connected in the correct sequence according to the board markings: 0V → 4.2V → 8.4V → 12.6V Do not short-circuit the terminals or connect the cells incorrectly. ⚠️ Important Notes The 20A rating is the maximum continuous rating; actual usable current depends on cooling, wiring, MOSFET temperature and battery capability. For electric-drill applications, high-current cells are required. Ordinary low-current 18650 cells may not be capable of supplying the required starting current. Sources specify high-C-rate cells for drill applications. If cooling is insufficient, reduce the load current. For brushed DC motors, a suitable suppression capacitor may be used across the motor terminals to reduce voltage spikes, as recommended by the supplied product instructions. Cells used in the same 3S pack should be properly matched and have similar voltage and condition. This is a protection/balancing board, not a standalone 12.6V charger. Use an appropriate 12.6V lithium-ion charger. Connect the battery and balance wires exactly according to the PCB markings. 📦 Package Includes 1 × 3S 20A 18650 Lithium Battery Protection Board with Balance
4S 30A 18650 Lithium Battery Protection Board 14.8V 16V with Cable
[Lithium Battery Protection Board] 4 Series 30A 18650 Lithium Battery Protection Board 14.8V 16V with Cable, a Balance Board for Drill Motor Lipo Cell Module comes with recovery function-AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides continuous discharge of 30A, Balanced current, for electric drill/sprayer/LED lights/low power inverter. (if the cooling environment is not good, please reduce the load current use) The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance) The Board comes in a size of approx. 46 x 60 x 3.4 mm which can be easily installed in a compact size or on battery bundle itself. You can check our others BMS. Click here Note: The Successful start of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!) Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. The Discharge test, the voltage drop faster battery that group is a poor battery. Features: Overcharge protection, Over-discharge protection function, short circuit protection function, Overcurrent protection function, band balance. Package included: 1 x 4 Series 30A 18650 Lithium Battery Protection Board 1 x Battery Connecting Cable
Out of stock3S 60A Lithium Battery Charger BMS 18650 Protection Module Circuit
[Lithium Battery Protection Board] Lithium-Ion Battery Packs need to be Balanced Charged and protected from Over Charge and Over-Discharge. This ensures the safety of the circuit and gives optimum battery life preserving the original capacity through use. You can use this Battery Management System(BMS) to ensure these conditions. It also offers short circuit protection. If you are using a 3S Lithium Battery in your project, you can also use this BMS Module to protect it from short circuits in the circuit. In the event of a short circuit, the BMS will cut power to the battery and restart. The 3 Series 60A 18650 Lithium Battery Protection Board 11.1V 12.6V with Balance for Drill Motor Lipo Cell Module comes with recovery function-AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 60A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (if the cooling environment is not good, please reduce the load current use). The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance). The Board comes in a size of approx. 46 x 60 x 3.4 mm which can be easily installed in a compact size or on the battery bundle itself. Features: 3S 11.1V 12.6V 60A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery). Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery). Continuous discharge current (upper limit): 60A (if the cooling environment is not good, please reduce the load current use). Continuous charge current (upper limit): 20A. Suitable for the drills with starting current below 80A, power 135W below. Note: The Successful start of the drill requires three 15C-20C power battery, or six 10C-15C power batteries (ordinary 18650 cannot start the drill!!). Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit. When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube. 3 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. In the Discharge test, the voltage drops faster battery that group is a poor battery. Package Includes: 1 x Battery Balance Module Enhanced 18650( 3S, 60A )
32650/32700 Holder Lithium Phosphate LifePo4 Battery Spacer Plastic Holder for DIY Battery Pack
[Lithium Battery Holder] The 32650 / 32700 LiFePO4 Battery Holder Spacer is a durable plastic bracket designed to securely hold cylindrical lithium iron phosphate (LiFePO4) battery cells during battery pack assembly. It ensures proper alignment, spacing, and airflow between cells, improving safety and structural stability. These holders are ideal for DIY battery pack builders working on solar storage systems, electric vehicles, power banks, UPS systems, inverters, and backup power solutions. Made from high-quality heat-resistant plastic, the spacer provides mechanical support and insulation between cells, reducing vibration and short-circuit risks. 🔹 Key Features Compatible with 32650 and 32700 LiFePO4 cells Strong and durable plastic construction Maintains proper spacing between battery cells Improves pack ventilation and heat dissipation Easy snap-fit design for quick assembly Lightweight and reusable Ideal for DIY and professional battery pack building 🔹 Technical Specifications Compatible Cell Size: 32650 / 32700 Material: ABS / High-strength plastic Color: Black (may vary by batch) Application: Battery pack assembly Mount Type: Snap-fit interlocking design Heat Resistance: Suitable for spot welding environments Insulation: Non-conductive plastic body 🔹 Applications LiFePO4 battery pack assembly Solar energy storage systems Electric vehicle battery packs UPS and inverter systems DIY power wall projects E-bike battery packs Industrial battery modules 🔹 Package Contents 1 × 32650 / 32700 Battery Spacer Holder
220uf / 25v Electrolytic Capacitor-Keltron
[Through Hole Capacitor] The KELTRON 220uF 25V Electrolytic Capacitor is a high-quality aluminum electrolytic capacitor designed for filtering, coupling, decoupling, and energy storage applications in electronic circuits. It is widely used in power supplies, audio amplifiers, control circuits, and industrial electronic equipment. In addition, the capacitor effectively smooths DC voltage and suppresses unwanted electrical noise. As a result, it helps improve circuit stability and overall system performance. Because of its 220uF capacitance value, the capacitor provides reliable energy storage and transient suppression for low-voltage electronic circuits. Furthermore, the 25V DC rating makes it suitable for various power supply and signal processing applications. The radial lead design allows easy PCB installation and secure mounting. Moreover, KELTRON capacitors are known for their dependable performance, long operational life, and stable electrical characteristics. This capacitor is commonly used in audio amplifiers, SMPS power supplies, battery chargers, LED drivers, inverter circuits, and DIY electronics projects. 🔹 Key Features Genuine KELTRON capacitor High-quality aluminum electrolytic construction 220uF capacitance value 25V DC rated voltage Excellent filtering and decoupling performance Low leakage current Long operational life Easy PCB mounting Suitable for power supply and audio applications 🔹 Technical Specifications Brand: KELTRON Product Type: Electrolytic Capacitor Capacitor Type: Aluminum Electrolytic Capacitance: 220uF Rated Voltage: 25V DC Tolerance: ±20% Mounting Type: Through-Hole (Radial Lead) Polarized: Yes Lead Type: Radial Operating Temperature: Up to 105°C (Series Dependent) Application: Filtering, Decoupling, Energy Storage 🔹 Applications This capacitor is suitable for: Power supply filtering Audio amplifier circuits SMPS power supplies LED driver circuits Battery chargers Inverter circuits Industrial electronics DIY electronics projects Electronic repair applications 🔹 Package Includes 1 × KELTRON 220uF 25V Electrolytic Capacitor
Out of stock74HC04 Hex Inverter IC (7404 IC) DIP-14 Package
[Logic Gates IC] 74HC04 is Hex Inverter NOT gate IC. It consists of six inverters which perform logical invert action. output of an inverter is complement of its input logic state i.e. when input is high its output is low and vice versa. device contains six independent gates each of which performs logic INVERT function. Operating voltage is 5V, high-level input voltage is 2V, and low-level input is 0.8V. Contains absolute maximum ratings over operating free-air temperature range, recommended operating conditions, electrical characteristics over recommended operating free-air temperature range. Features:- 6 Hex Inverters in a 14-Pin DIP Package Outputs Directly Interface to CMOS, NMOS and TTL Large Operating Voltage Range Wide Operating Conditions Specifications:- Type: DIP Bipolar Voltage Rating: 4.75 to 5.25V Current Rating: Max. 16mA Output Temperature Rating: 0 to 70Deg C Number of: 14 Pins Mounting: Through Hole
Out of stock3S 12V 25A 18650 Lithium Battery Protection Board with Balance
[Lithium Battery Protection Board] This is 3S 12V 25A 18650 Lithium Battery Protection Board 11.1V 12.6V High Current With Balanced Circuit Over Charge Over-Discharge Over Current And Short Circuit Protection Function. Board charging and discharging are the same port, the board includes the balanced circuit. When the charge balance, the board will be a bit warm, even after disconnecting the charger, some are still in the balance, will continue to warm for a while until below the equilibrium break threshold. The protection board cannot be used for iron lithium polymer battery (for other batteries, no matter what material, as long as the overvoltage and put voltage can be used for cutting), electric finish machinery, electric bicycle batteries, car, and motorcycle starter battery protection. Applicable to the following products (within rated power): Electric drill, 775 motors (6A-10A), small power inverter, small power vacuum massager battery, LED lamp, 12V standby power electronic products, 12V120W car washing pump, battery, solar street lamp monitoring standby power supply, and other products. Rated current can’t over 25A, it can’t exceed 50A per 0.5 seconds. Specifications : Overcharge voltage range: 4.25-4.35v + 0.05v. Overdischarge voltage range: 2.3-2.7v + 0.05v. Operating current: 0 – 25A. Operating temperature: -40 – +50℃. Instantaneous current: 35 – 40A. Storage condition: -40 – +80℃. Quiescent current: less than 30uA. Balance current: about 40 – 50mA. Effective life: more than 30000 hours. Internal resistance: less than 100m ohm. Short-circuit protection: protection, delayed self recovery. Package includes: 1 x 3S 12V 18650 lithium battery protection board with Balance.
Keltron 2200uF 25V Radial Electrolytic Capacitor High Performance Capacitor
[Through Hole Capacitor] The 2200uF 25V Electrolytic Capacitor is a high-capacitance aluminum electrolytic capacitor designed for energy storage, voltage filtering, and decoupling applications. It is widely used in power supplies, audio amplifiers, industrial electronics, and electronic repair projects. In addition, the capacitor provides excellent ripple current handling and stable electrical performance. As a result, it effectively reduces voltage fluctuations, suppresses electrical noise, and improves overall circuit reliability. Because of its 2200uF capacitance, this capacitor can store a significant amount of electrical energy for smoothing DC outputs and reducing transient voltage spikes. Furthermore, the 25V rated voltage makes it suitable for a wide range of low-voltage power supply applications. The radial lead design allows easy PCB mounting and convenient installation. Moreover, the capacitor is manufactured using high-quality aluminum electrolytic technology to ensure long service life and dependable operation. This capacitor is commonly used in SMPS power supplies, audio amplifiers, inverter circuits, battery chargers, LED drivers, Arduino projects, and general electronic circuits. 🔹 Key Features High capacitance 2200uF value Rated voltage of 25V DC Radial lead electrolytic capacitor Excellent filtering and decoupling performance Low impedance design High ripple current capability Reliable long operational life Suitable for power supply and audio applications Easy PCB mounting 🔹 Technical Specifications Product Type: Aluminum Electrolytic Capacitor Capacitance: 2200uF Rated Voltage: 25V DC Tolerance: ±20% Mounting Type: Through-Hole (Radial Lead) Capacitor Type: Polarized Electrolytic Operating Temperature: -40°C to +105°C (varies by manufacturer series) Lead Spacing: Typically 7.5mm – 10mm (varies by batch) Application: Filtering, Decoupling, Energy Storage Series Resistance: Low ESR (depends on series) 🔹 Applications This capacitor is suitable for: Audio amplifier circuits Power supply filtering SMPS circuits Voltage stabilization circuits Battery chargers Inverter systems LED driver circuits DIY electronics projects Industrial electronic equipment Electronic repair work 🔹 Package Includes 1 × 2200uF 25V Radial Electrolytic Capacitor
Water Cooling Head Water Cooling Plate 40*40mm
[Aluminium Heat Sink] Liquid coolers excel at delivering cooling to concentrated heat sources such as Peltier Elements and for delivering cooled fluid into remote or compact locations where the cooling assembly itself cannot be located. The basic operation is simple: fluid flows in one tube, it is cooled, and then it flows out the other tube. An external pump is required, and typically small DC magnetic-drive pumps are used to minimize the amount of pump power (heat) that is imparted to the fluid. Applications: Computer CPU water, industrial inverter driver, laser head cooling, industrial control cabinet cooling. Features: Heavy Aluminium build Internal flow channel extrusion forming Applicable to computer CPU water, industrial inverter driver, laser head cooling, industrial control cabinet cooling Package Includes: 1 x Water Cooling Head Water Cooling Plate 40*40mm