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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Paper Circuit Kit
Conductive copper foil tape. Power: 3V coin cell (CR2032). Components: LEDs (3mm/5mm), push switch, battery holder. Use: series/parallel circuits on paper. Safe low-voltage.
Soldering Helping Hand
Adjustable crocodile clamps, soldering iron holder, LED light, magnifying lens.
Out of stockMagnetic Under-Desk Cable Clips (6 pc)
Strong neodymium cable holders for desk underside or steel surfaces. 6-pack.
Out of stockPCB Holder Clamp (PCB Vise)
Adjustable PCB holder/vise, fits boards up to 200mm × 140mm.
26650 Battery Holder / Battery Spacer 2×1 – 26.3mm Bore Diameter
[Lithium Battery Holder] 26650 Battery Holder / Battery Spacer 2×1 – 26.3mm Bore Diameter The 26650 Battery Holder / Battery Spacer 2×1 is a cylindrical battery spacer designed to securely arrange 26650 lithium-ion battery cells while building multi-cell battery packs. Made from flame-retardant ABS+PC material, it provides a strong and stable structure while allowing air circulation around the cells. The holder features interlocking slots on the edges, allowing multiple spacers to be joined together to create different battery-pack sizes and configurations. After welding nickel strips, the assembled battery pack can achieve a solid and reliable structure without requiring additional connecting hardware. ⭐ Key Features Designed for 26650 cylindrical lithium-ion cells 2 × 1 configuration 26.3mm bore diameter Made from flame-retardant ABS+PC material High-temperature resistant construction Crack-resistant design Interlocking slots for connecting multiple spacers Allows flexible battery-pack configurations Provides mechanical support for battery cells Helps maintain proper spacing between cells Suitable for high-current battery-pack construction Helps improve battery-pack stability and reliability Allows airflow around the cells for heat dissipation 📋 Technical Specifications Product Type: Battery Holder / Battery Spacer Compatible Cell: 26650 cylindrical battery Configuration: 2 × 1 Number of Cells: 2 Bore Diameter: 26.3mm Material: Flame-retardant ABS+PC Construction: Interlocking modular design Mounting: Multiple spacers can be joined together Application: Lithium battery pack assembly Cell Type: Cylindrical Li-ion cells 🔧 Applications 26650 lithium-ion battery packs E-bike battery packs Electric scooter battery packs Electric vehicle battery packs Power-tool battery packs DIY high-current battery packs UPS battery systems Solar energy storage packs Portable power stations Robotics battery packs Custom lithium battery assemblies 🛠️ How to Use The spacer is designed to hold two 26650 cells in a 2×1 arrangement. Multiple spacers can be connected through the slots provided around the edges to create larger battery-pack configurations. For a complete battery pack: Cell → Spacer → Nickel Strip Welding → Additional Spacers → Battery Pack For mechanical support, spacers can be positioned at the top and bottom of the cells. Important: For each individual battery cell, 2 spacers are recommended—one at the top and one at the bottom. 💡 Advantages Simple Assembly: Easy to arrange cylindrical cells. Flexible Design: Multiple spacers can be interconnected to create different pack shapes. Strong Construction: Helps keep cells firmly positioned. Heat Dissipation: Provides spacing between cells and allows airflow. Reliable Battery Pack: Helps make the completed pack mechanically stable. Suitable for Complex Packs: Useful for custom battery configurations, including e-bike and high-current applications. ⚠️ Important Notes This product is only a battery holder/spacer; batteries are not included. The 26.3mm bore is intended for compatible 26650 cells. Check your actual cell diameter before purchase. Do not force oversized cells into the holder. Battery cells should be properly insulated and securely assembled. Use suitable nickel strip and an appropriate spot-welding method. Use a suitable BMS/protection system for the completed lithium battery pack. Battery cells should be properly matched before assembling a multi-cell pack. 2 spacers are recommended per individual cell, one on each end. Keep the battery assembly away from excessive heat, moisture and physical damage. 📦 Package Includes 1 × 26650 Battery Holder / Battery Spacer – 2×1, 26.3mm Bore Diameter Note: Battery cells, nickel strips and BMS are not included.
Black Plastic 3×18650 Battery Holder or Case Series Connection With Wire
[Lithium Battery Holder] Black Plastic 3×18650 Battery Holder – Series Connection The Black Plastic 3×18650 Battery Holder is designed to securely hold three 18650 lithium-ion battery cells in series configuration. It provides a convenient and organized way to mount 18650 cells for DIY battery packs, portable electronics, power supplies, LED projects, and other battery-powered applications. The holder is made from durable plastic and features mounting holes for secure installation using suitable screws. It is supplied with red and black connecting wires for convenient connection to an external circuit. ⭐ Key Features Designed for 3 × 18650 battery cells Series connection Black plastic construction Without cover Secure battery positioning Easy installation Built-in mounting holes Red and black connecting wires Suitable for DIY battery pack projects Compact and lightweight design 📋 Technical Specifications Product Type: 18650 Battery Holder Battery Capacity: 3 Cells Battery Type: 18650 Li-Ion Cell Configuration: 3S / Series Connection Nominal Output Voltage: Approximately 11.1V with 3.7V cells Fully Charged Voltage: Approximately 12.6V Material: Plastic Color: Black Cover: Without Cover Connection Wires: Red and Black Mounting: Screw Mount Mounting Holes: Yes Recommended Screw Size: Approximately 3mm Application: Battery Pack / Portable Electronics 🔌 Connection The three 18650 cells are connected in series, increasing the total voltage while maintaining the capacity of a single cell. With standard 3.7V nominal cells, the pack is approximately 11.1V nominal and 12.6V when fully charged. The red wire is the positive connection and the black wire is the negative connection. 🔧 Applications DIY 18650 Battery Packs 3S Lithium-Ion Battery Packs Portable Electronics LED Lighting Projects DIY UPS Projects Arduino Projects ESP8266 / ESP32 Projects Rechargeable Electronics Battery-Powered Devices Electronics Prototyping 📦 Package Includes 1 × 3×18650 Battery Holder / Case – Series Connection, Without Cover ⚠️ Precautions Use only compatible 18650 Li-Ion cells. Use three cells with matching capacity, chemistry, age, and charge condition. Use a suitable 3S BMS/protection and charging circuit. Do not mix damaged or mismatched cells. Check polarity carefully before installation. Do not short-circuit the battery terminals. Do not use damaged, swollen, or leaking cells. Ensure the holder and wiring are securely installed.
Winway 18650 Lithium-Ion Rechargeable Battery 3.7V 2600mAh 9.62Wh
[Lithium Battery Cell] The Winway 18650 Lithium-Ion Rechargeable Battery is a high-performance cylindrical Li-ion cell designed to deliver reliable and long-lasting power for a wide range of electronic devices. With a nominal voltage of 3.7V, 2600mAh capacity, and 9.62Wh energy rating, it provides consistent power output for both high-drain and low-drain applications. Manufactured using premium lithium-ion cell technology, this battery offers excellent energy density, stable discharge performance, and long cycle life. Its standard 18650 form factor makes it compatible with most battery holders, chargers, and devices designed for 18650 cells. The Winway 2600mAh battery is widely used in rechargeable flashlights, emergency lights, battery packs, power banks, Bluetooth speakers, portable fans, solar lighting, DIY electronics, robotics, and various battery-operated devices. Designed for durability and dependable performance, this battery delivers excellent backup time while maintaining stable voltage throughout the discharge cycle. ⭐ Features High-quality 18650 Lithium-Ion rechargeable battery 2600mAh high-capacity cell Nominal voltage of 3.7V Energy rating of 9.62Wh Stable discharge performance High energy density Long charge and discharge cycle life Lightweight and compact cylindrical design Suitable for battery pack assembly Compatible with standard 18650 battery holders and chargers 📋 Technical Specifications Product Type: Lithium-Ion Rechargeable Battery Brand: Winway Battery Model: 18650 Nominal Voltage: 3.7V Nominal Capacity: 2600mAh Energy: 9.62Wh Battery Chemistry: Lithium-Ion (Li-ion) Cell Type: Rechargeable Form Factor: Cylindrical 18650 Diameter: Approx. 18mm Length: Approx. 65mm Weight: Approx. 45g Color: Green Rechargeable: Yes Made In: India Pack Quantity: 1 Piece 🔧 Applications Suitable for: Rechargeable Flashlights Emergency Lights Power Banks Bluetooth Speakers Portable Fans Solar Lighting Systems DIY Battery Packs Robotics Projects Arduino Projects ESP32 Projects Electronic Toys Portable Electronic Devices Medical Equipment (Compatible Models) Industrial Electronic Equipment 📦 Package Includes 1 × Winway 18650 Lithium-Ion Rechargeable Battery 3.7V 2600mAh ⚠️ Safety Instructions Use only a compatible Li-ion battery charger. Do not short-circuit, puncture, crush, or disassemble the battery. Do not expose the battery to fire, excessive heat, or water. Observe correct polarity during installation. Do not overcharge or over-discharge the battery. Store in a cool, dry place away from direct sunlight.
2 x 32140 / 33140 Battery Holder with 33MM Bore Diameter
[Lithium Battery Holder] 32140 / 33140 x 2 Battery Cell Spacer/Holder is a cylindrical battery spacer, made of flame retardant ABS+PC materials, with high-temperature resistance and crack resistance. There are slots on the edge of the holder, that can be combined into many different sizes and shapes of the battery pack; after welding nickel tabs, the pack can pass the vibration test without any other connecting device. Make your battery pack Solid and Reliable! Note!! Every Single battery cell needs 2 Spacers one up and one down buy it accordingly. Features : There are slots on the edge of the holder to combine them into many different sizes and shapes of the battery pack. Application: Design for Radiating Complex Battery Packs. Safe and Stable, Perfect Build for eBike! Item Type: Battery Holder Model Name 32140 / 33140 radiating battery spacer Material: ABS/PC (Remarkable Flame Retardant Plastic) Bore Diameter [B] (mm) 33MM Application Design for Radiating Complex Battery Packs. Safe and Stable, Perfect Build for eBike Length (mm): 73 Width (mm): 35 Height (mm): 9mm Shipping Weight 0.008 kg Shipping Dimensions 10 × 7 × 1.5 cm Advantages: Very simple to operation Very flexible, it is easy to assemble any type of battery packs Radiating during high rate discharge. Makes your battery pack Solid and Reliable! Package Includes: 1 x 2 x 32140 / 33140 Battery Holder with 33MM Bore Diameter
2 x 32650/32700 Battery Holder with 32.35MM Bore Diameter
[Lithium Battery Holder] 32650 x 2 Battery Cell Spacer/Holder is a cylindrical battery spacer, made of flame retardant ABS+PC materials, with high-temperature resistance and crack resistance. There are slots on the edge of the holder, that can be combined into many different sizes and shapes of the battery pack; after welding nickel tabs, the pack can pass the vibration test without any other connecting device. Make your battery pack Solid and Reliable! Search Our Others Products: Click Here Note!! Every Single battery cell needs 2 Spacer for one up and one down buy it accordingly. Features : There are slots on the edge of the holder to combine them into many different sizes and shapes of the battery pack. Application: Design for Radiating Complex Battery Packs. Safe and Stable, Perfect Build for eBike! Advantages: Very simple to operation Very flexible, it is easy to assemble any type of battery packs Radiating during high rate discharge. Makes your battery pack Solid and Reliable! Package Includes: 1 X 2 x 32650/32700 Battery Holder with 32.35MM Bore Diameter
Out of stockHighstar A Grade 3.2V 100Ah Prismatic LiFePO4 Battery with Cell Holder
[LiFePO4 Battery Cell] HIGHSTAR LiFePO4 100Ah 3.2V IFPP40130220 Battery Cell – High Performance & Long Life Product Data Sheet IFPP40130220-100 The HIGHSTAR LiFePO4 100Ah 3.2V IFPP40130220 Battery Cell is a high-performance, rechargeable lithium iron phosphate (LiFePO4) cell designed for demanding energy storage applications. With its high energy density, long cycle life, and exceptional safety features, this battery is ideal for solar energy storage, electric vehicles (EVs), backup power systems, and industrial applications. Key Features High Capacity & Voltage: 3.2V nominal voltage with a 100Ah capacity for reliable, long-lasting energy. Long Cycle Life: Over 4,000 charge cycles, ensuring durability and cost-effectiveness. Fast Charging & Discharging: Supports high charge/discharge currents for high-performance applications. Stable Performance: Low internal resistance for efficient power output. Enhanced Safety: Built-in protection against overcharging, over-discharging, and short circuits. Eco-Friendly: Free from toxic heavy metals like lead and cadmium. Check our others LiFePO4 cells : Click Here Technical Specifications Model: IFPP40130220 Nominal Voltage: 3.2V Nominal Capacity: 100Ah Discharge Cutoff Voltage: 2.5V Maximum Continuous Charge Current: 1C (50A) Standard Discharge Current: 1C (100A) Maximum Continuous Discharge Current: 1C (100A) Charging Voltage: 3.65V Dimensions: 40mm x 130mm x 220mm Weight: Approximately 2.8kg Applications The HIGHSTAR 100Ah LiFePO4 cell is suitable for various applications: Solar Energy Storage Perfect for off-grid solar systems, residential solar energy storage, and hybrid energy systems. Ensures stable and sustainable energy storage with high efficiency. Electric Vehicles (EVs) & E-Bikes Provides consistent power output for electric cars, motorcycles, and bicycles, improving performance and reliability. UPS & Backup Power Systems Ensures uninterrupted power supply for data centers, emergency power systems, and industrial equipment. Portable Power Stations & DIY Battery Packs Can be used in custom battery packs for camping, RVs, and marine applications. Why Choose HIGHSTAR LiFePO4 100Ah 3.2V IFPP40130220 Battery Cell? Superior Lifespan: Outlasts traditional lead-acid and lithium-ion batteries. Enhanced Safety: No risk of thermal runaway, explosion, or fire. Energy Efficient: Low self-discharge rate and high efficiency. Environmentally Friendly: 100% recyclable and non-toxic materials.
A2212 1000 KV BLDC Brushless DC Motor for Drone (Without Connector)
[Drone Motor] Features : The steel design is capable of withstanding competitional conditions. Lightweight design makes them suitable for a wide range of Quadcopter and Hexacopter Frames. Compact size. Offers great performance and value for money. Package Includes : 1 x A2212 1000 KV BLDC Brushless DC Motor 1 x Prop Adapter A Motor Holder (X-type) and set of screws Motor KV (RPM/V) 1000 Motor Type Brushless Motor Compatible LiPO Batteries: 2S to 3S Model No.: A2212 10T 13T Shaft Diameter (mm): 3.17 Current Capacity (A) 12 No-Load Current (mA) 500 Max. Efficiency Current (A) 4 ~ 10 Maximum Efficiency 0.8 Length (mm): 27.5 Weight (g): 72 Width (mm): 27 Shipping Weight 0.078 kg Shipping Dimensions 12 × 6 × 5 cm
A2212 10T 1400KV Brushless Motor for Drone (Soldered Connector)
[Drone Motor] The A2212 10T 1400KV Brushless Motor for Drone is best compatible or used with SimonK 30A ESC and 1045 Propeller Set. This 1400KV brushless motor is equipped with a solid metal case which makes it reliable and durable. The A2212 10T Motor comes with a pre-soldered good-quality connector for a fast and direct connection between ESC and the motor. Application : Drones Quadcopters Multirotors RC Airplanes UAV Motor KV (RPM/V) 1400 Motor Type Brushless Motor Compatible LiPO Batteries: 2S to 3S Model No.: A2212 10T Shaft Diameter (mm): 3.17 Current Capacity (A) 16 Max. Efficiency Current (A) 6 ~ 12 No-Load Current (mA) 700 Maximum Efficiency 0.8 Length (mm): 27.5 Weight (g): 72 Width (mm): 27 Shipping Weight 0.078 kg Shipping Dimensions 12 × 6 × 5 cm Features : The steel design is capable of withstanding competitional conditions. Lightweight design makes them suitable for a wide range of Quadcopter and Hexacopter Frames. Compact size. Offers great performance and value for money. Smooth throttle response for best RC experience. Package Includes : 1 x A2212 10T 1400Kv Brushless Motor for Drone 1 x Prop Adapter A Motor Holder (X-type) and set of screws
3.7V 500mAh 14500 Lithium-Ion Battery without Tip Top Cap
[Lithium Battery Cell] Product Description The 3.7V 500mAh 14500 Lithium-Ion Rechargeable Battery (AA Size) is a compact and powerful energy source designed for high-performance portable devices. With a flat-top terminal and 500mAh capacity, this Li-ion cell provides reliable, long-lasting power for your electronics and DIY projects. Ideal for use in RC transmitters, receivers, flashlights, toys, and DIY electronic projects, it offers excellent efficiency and rechargeability compared to standard AA batteries. Its cylindrical design ensures compatibility with most 14500 battery holders or can be soldered directly into circuits. Features Voltage: 3.7V Capacity: 500mAh Battery Type: Lithium-Ion (Li-ion) Shape: Cylindrical (AA Size – 14500) Terminal Type: Flat Top High performance and long cycle life Lightweight and compact design Compatible with most 14500 battery holders Environment-friendly and rechargeable Applications RC transmitters and receivers Flashlights and LED torches Hobby electronics and DIY projects Battery-powered toys and gadgets Power banks and small embedded systems Package Includes 1 × 3.7V 500mAh 14500 Lithium-Ion Rechargeable Battery (Flat Top, without Tip Cap)
Out of stock32700 32650 3.2V Rechargeable 6000mAh LifePO4 Battery Cell for EV
[LiFePO4 Battery Cell] 32700 32650 3.2 V 6000 MAH LiFePO4 Battery This Standard 32700 32650 3.2 V Rechargeable 6000mAh LifePO4 Battery Cell is a single cell powerful battery cell with a massive 6000 mAh capacity. This LifePO4 battery is very convenient to install in your project where 3.2 Volt with high capacity is needed. The Standard 6000mAh 3.2V Rechargeable LifePO4 Battery is a source of power for various portable devices including flashlights, hobby transmitters, and receivers, etc. This Battery can be the best Replacement to the normal Non-Rechargeable AA Battery used in many applications such as in RC Transmitter/Reciever Remote, which can make your flight driving experience very cost-effective and efficient in terms of power output than that of conventional AA batteries. IMPORTANT: Never completely discharge the LifePO4 battery ( below 2.5V under load ). Charge fully to 4.2V before first use. Never attach any metal moving part like a magnet to the battery contact. Never use force to install (insert) LifePO4 battery. Do not use old and new battery cells together. Use only a high-quality battery charger. Do not expose to heat. Do not short (connect) positive (top), and negative (bottom) battery terminals (contacts). Keep battery that is not in use in the plastic holder (or any insulating [plastic] container). Do not charge the battery over 4.22V (another reason to use a high-quality battery charger). Don’t charge unattended. Do not store your LifePO4 batteries fully charged (for an extended period of time). Store in a cold and dry place at approximately 3.7V (storage charge). After the battery is discharged-don’t leave it discharged, charge it as soon as possible. FEATURES: Shape: Cylindrical Battery Battery Type: Lithium-Ion Rechargeable Battery High performance and capacity Flat top to suit many devices fitting PACKAGE INCLUDES: 1 x 32700 or 32650 3.2 V Rechargeable 6000mAh LifePO4 Battery Cell for EV. Note: Color and Print on the Cells may vary with every lot. We ship it randomly
18650 3.7V 2000mAh Lithium-Ion Rechargeable Battery Cell
[Lithium Battery Cell] The 18650 3.7V 2000mAh Lithium-Ion Rechargeable Cell is a high-performance cylindrical lithium battery designed for reliable and long-lasting power delivery. With a nominal voltage of 3.7V and a capacity of 2000mAh, this cell is ideal for building DIY battery packs, power banks, backup batteries, flashlights, robotics systems, and portable electronic devices. Manufactured using high-quality lithium-ion chemistry, this rechargeable cell offers stable discharge, low internal resistance, and excellent cycle life. It can be connected in series or parallel configurations to create higher voltage or higher capacity battery packs for various applications. The standard 18650 size format makes it compatible with most battery holders, chargers, and BMS boards. When used with a proper BMS (Battery Management System) and charger, this cell provides safe and efficient performance. ⭐ KEY FEATURES ✔ Nominal Voltage: 3.7V✔ Capacity: 2000mAh✔ Rechargeable Lithium-Ion Chemistry✔ Standard 18650 Size – wide compatibility✔ Long cycle life & stable output✔ Low self-discharge rate✔ Ideal for DIY battery packs & portable power projects 🔧 TECHNICAL SPECIFICATIONS Battery Type: Lithium-Ion (Li-ion) Model Size: 18650 Nominal Voltage: 3.7V Rated Capacity: 2000mAh(Actual Capacity may be vary) Charging Voltage: 4.2V (Max) Discharge Cut-off Voltage: ~2.5V Rechargeable: Yes Form Factor: Cylindrical 🎯 APPLICATIONS Power banks & portable chargers DIY lithium battery packs Flashlights & emergency lights Robotics & automation projects Solar battery storage UPS & backup power systems Toys & electronic gadgets 📦 PACKAGE INCLUDES 1 × 18650 3.7V 2000mAh Lithium-Ion Rechargeable Battery Cell Note: Images shown are for illustrative purposes only. Actual Product may vary.
Out of stockHongli 18650 3.7V 3000mAh Lithium-Ion Rechargeable Cell
[Lithium Battery Cell] HONGLI Lithium-ion 18650 3.7V 3000mAh Battery Cell This Li-Ion 18650 3.7V 3000MAH Battery gives value for your money. It is a single cell, compact, and powerful battery cell with 3000 mAh capacity(Not actual capacity). It is very convenient to install in your project to fulfill a 3.7 Volt requirement with high capacity. The battery terminals can use in any compatible battery adapter/holder or it can be permanently soldered to your application’s power source wires. This is copy cells capacity may be different. Important: Never completely discharge the Li-ion battery ( below 2.5V under load ). Charge fully to 4.2V before first use. Never attach any metal moving part |magnet| to the top-positive or the bottom-negative battery contact. Never use force to install (insert) Li-ion battery. Do not use old and new battery cells together. Use only a high-quality battery charger. Do not expose to heat. Do not short (connect) positive (top), and negative (bottom) battery terminals (contacts). Keep battery that is not in use in the plastic holder (or any insulating [plastic] container). Do not charge a battery over 4.22V (another reason to use a high-quality battery charger). Don’t charge unattended. Do not store your li-ion batteries fully charged (for an extended period of time). Store in cold and dry place at approximately 3.7V (storage charge). After the battery is discharged-don’t leave it discharged=>charge it as soon as possible Features/Specs: Manufacturer: HONGLI SUPPLY SOURCE TECHNOLOGY Battery Type: Lithium-Ion Battery Battery Model: 18650 Battery Voltage: 3.7V Full Charging voltage: 4.20V Battery Capacity: 3000 mAh Rechargeable: Yes PCB Protected Board: No Shape: Cylindrical Battery Dimensions in: mm Dia: 18mm Length: 65mm Weight: 39gm Application: Portable equipment: POS, Portable printer, handset. Medical instrument: B ultrasound, Ecg monitoring instrument Military equipment: IR telescope Consumer electronics:PDA,MID,laptop,emergency light power source power tool e-bicycle Industrial and commercial instrument: light power meter, Gas testing instruments, fusion splicer, flaw detector Electric toy:RC car/ boat/helicopter Package Includes: 1 x HONGLI Lithium-ion 18650 3.7V 3000mAh Battery Cell Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
18650 SMD/SMT High-Quality Single Battery Holder
[Lithium Battery Holder] 18650 SMD/SMT High-Quality Single Battery Holder The 18650 SMD/SMT Single Battery Holder is a compact PCB-mount battery holder designed to securely hold a single 18650 Li-ion rechargeable cell. Its SMD mounting pins allow the holder to be directly soldered onto a PCB, eliminating the need for loose battery wires and making it suitable for compact electronic designs. Multiple electronics retailers list the same holder with ABS construction, gold-plated contacts, stainless-steel contact material and dimensions of approximately 77 × 21 × 15mm. ⭐ Key Features Designed for 1 × 18650 lithium-ion cell SMD/SMT PCB mounting design Lightweight and compact Directly mounts onto a PCB Eliminates loose battery wiring Gold-plated brass contact points Stainless-steel battery contact/shrapnel High-quality ABS body Secure battery holding mechanism Easy battery insertion and replacement Reusable design Good environmental and temperature resistance Suitable for compact PCB projects 📋 Technical Specifications Product Type: 18650 SMD/SMT Battery Holder Number of Cells: 1 Compatible Battery: 18650 Li-ion cylindrical cell Mounting Type: SMD / SMT Body Material: ABS Contact Material: Stainless Steel Contact Plating: Gold Contact Construction: Gold-plated brass contact points with stainless-steel battery retention contacts Color: Black Operating Temperature: -40°C to 180°C Dimensions: Approx. 77 × 21 × 15mm (L × W × H) Weight: Approx. 8g 🔋 Battery Compatibility This holder is designed specifically for a single 18650 cylindrical Li-ion cell. It provides mechanical support and electrical contacts between the battery and the PCB; the holder itself does not provide battery charging, overcharge protection or BMS functionality. 🔧 Applications PCB battery-powered projects DIY electronics Arduino projects ESP32 and microcontroller projects Robotics Portable electronic devices Battery-powered gadgets IoT devices Custom PCB designs Rechargeable battery projects Prototyping and development boards 🛠️ Installation Position the holder on the PCB according to the PCB footprint. Ensure the positive and negative contacts are correctly oriented. Solder the SMD terminals to the PCB. Allow the solder joints to cool and inspect them for proper connection. Insert a compatible 18650 battery with the correct polarity. Verify the battery voltage and circuit polarity before powering the project. 📦 Package Includes 1 × 18650 SMD/SMT High-Quality Single Battery Holder ⚠️ Precautions Use only a compatible 18650 cylindrical Li-ion cell. Check the positive and negative polarity before inserting the battery. The holder is only a mechanical/electrical battery holder; it does not include a charger or BMS. Do not short-circuit the contacts. Do not force an incorrectly sized battery into the holder. Ensure the PCB solder joints are secure before inserting the battery. Do not exceed the electrical limits of the holder or PCB. Remove the battery before soldering or servicing the PCB.
1.8 Inch TFT LCD Module 128 x 160 with SPI
[LED/LCD Display Module] Since the 1.8 Inch TFT LCD Module display uses 4-wire SPI to communicate and has its own pixel-addressable frame buffer, it can be used with every kind of microcontroller. Even a very small one with low memory and few pins available! The 1.8″ display has 128×160 colour pixels. Unlike the low cost “Nokia 6110” and similar LCD displays, which are CSTN type and thus have poor colour and slow refresh, this display is a true TFT! The TFT driver (ST7735R) can display full 18-bit colour (262,144 shades!). And the LCD will always come with the same driver chip so there are no worries that your code will not work from one to the other. The breakout has the TFT display soldered on (it uses a delicate flex-circuit connector) as well as an ultra-low-dropout 3.3V regulator and a 3/5V level shifter so you can use it with 3.3V or 5V power and logic. We also had a little space so we placed a microSD card holder so you can easily load full-colour bitmaps from a FAT16/FAT32 formatted microSD card. For more displays click below, LED/LCD Display Features : 1.8-inch serial SPI colour display module Support analogue SPI and hardware SPI The LCD has a wide viewing angle, the contrast is also very suitable. Good quality display. Package includes: 1 x 1.8 Inch TFT LCD Module 128 x 160 with 4 IO
18650 Battery Spacer Holder 3×1 – High-Strength Lithium-Ion Cell Bracket for Pack Building
[Lithium Battery Holder] The 18650 3×1 Lithium-Ion Battery Cell Spacer Holder is a high-strength, durable cell bracket designed for building safe, stable, and professional-grade battery packs. This spacer securely holds three 18650 cells in a 3×1 configuration, ensuring proper spacing for heat dissipation, vibration resistance, and long battery life. Made from high-quality ABS material, the holder provides excellent insulation and structural stability, making it ideal for battery pack assembly in DIY projects, e-bikes, power banks, solar street lights, robotics, UPS systems, and energy storage projects.Perfect for spot welding setups, the modular design allows easy stacking and expansion to create larger battery packs with consistent alignment and safety. ✅ Features High-quality 3×1 spacer holder for 18650 lithium-ion cells Provides secure fit and stable structure for battery pack assembly Ensures proper spacing for heat dissipation and long cell life Made from durable, high-temperature ABS plastic Ideal for DIY battery packs, e-bikes, solar lights, power banks & UPS systems Perfect for spot welding and series/parallel battery configuration Modular design allows easy expansion for large battery packs Prevents cell movement, vibration damage, and short circuits Note: Battery is not included, you need to buy it separately. Package Includes: 1 x 18650 Battery Spacer Holder 3×1 – High-Strength Lithium-Ion Cell Bracket for Pack Building
18650 2×1 Battery Cell Spacer Holder
[Lithium Battery Holder] These Battery Cell Spacer Holders are made for 18650 Li-ion batteries. It is made of flame retardant ABS+PC materials. The holders have features like high-temperature resistance and crake proof. Every Single battery cell needs 2 Spacer for one up and one down buy it accordingly. There are slots on the edge of the holder to combined them into many different sizes and shapes of the battery pack. Features: Compatible Battery Size: 18650 Li-ION It is very simple to operate and it is flexible. It is easy to assemble any type of battery packs. It makes your battery pack Solid and Reliable. Note: Battery is not included, you need to buy it separately. Package Includes: 1 x 18650 2×1 Battery Cell Spacer Holder.
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
5mm LED Holder Chrome Metal Silver open type
[LED Holder and Connector] The 5mm Open Type Chrome Metal LED Holder is designed for mounting standard 5mm LEDs in electronic panels and project enclosures. Its open-front design allows the LED to remain clearly visible while providing secure support and a professional finish. Made from durable chrome-plated metal, this holder offers better strength and long-lasting performance compared to standard plastic holders. In addition, the polished silver finish improves the appearance of LED indicators in DIY and industrial projects. Because of its compact panel-mount design, the holder is easy to install in amplifier panels, battery indicators, control boxes, and custom electronic enclosures. Furthermore, it helps keep LEDs aligned securely during operation. This holder is widely used in DIY electronics, audio amplifiers, robotics projects, battery systems, and indicator light applications. 🔹 Key Features Compatible with standard 5mm LEDs Open type front design Durable chrome-plated metal body Silver polished finish Secure panel mount fitting Professional appearance Easy installation Compact and lightweight 🔹 Technical Specifications Parameter Specification Product Type LED Holder LED Compatibility 5mm LED Design Open Type Material Chrome Metal Finish Silver Mount Type Panel Mount 🔹 Applications LED indicator mounting DIY electronics projects Audio amplifier panels Battery indicator systems Robotics projects Control panel indicators Electronic enclosures 🔹 Package Includes 1 × 5mm Open Type Chrome Metal LED Holder
Out of stockSoldering Gun Iron Stand
[Soldering Tools] A quality soldering iron stands with a heavy-duty metal base. This model features a reinforced spring safety holder, which prevents flex from getting entangled with spring. This simple soldering iron stand composed of a reinforced spring holder. The base and holder are detachable. A circular cleaning sponge, which places at the rear of the base. This holder should fit most soldering irons, and it’s a great way to keep our ‘fire-starter' handy and off your floor. Features: The wide spring holder provides plentiful room for holding the soldering iron support. Robust and powerful base to uphold the weight of soldering irons varying from 30w, 35w, 40w, 50w, 60w and 75w The nickel-plated wide spring holder PACKAGE INCLUDES : 1 x Soldering Iron Stand