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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
A Grade 3.2V 15Ah 3C 48Wh 3000 Cycles Prismatic Lithium Ion Lipo4 33140 Battery
[LiFePO4 Battery Cell] 32140 15Ah Battery Specification Overview The 15Ah 32140 is a lithium iron phosphate (LiFePO4/LFP) battery in the 32140 cylindrical format (32mm diameter x 140mm height). It's designed for high-capacity, high-cycle-life applications, particularly in energy storage and electric vehicles. Here's a detailed breakdown: Key Specifications • Model: JSK-32140 (or similar variant) • Chemistry: LiFePO4 (LFP) • Nominal Capacity: 15Ah (15000mAh) • Nominal Voltage: 3.2V • Charge Voltage: 3.65V (max) • Discharge Cut-off: 2.5V • Max Continuous Discharge: 30A (2C) • Peak Discharge (pulse): 60A (4C, ≤3 sec) • Standard Charge Current: 7.5A (0.5C) • Fast Charge Possible: Up to 15A (1C) • Cycle Life: 2000+ cycles (to 80% capacity) • Dimensions: 32mm × 140mm • Weight: ~450g (varies by manufacturer) • Operating Temp: ◦ Charge: 0°C to 45°C ◦ Discharge: -20°C to 60°C Key Features ✅ High Capacity – 15Ah is substantial for a single cell, ideal for energy storage. ✅ Long Cycle Life – 2000+ cycles (far exceeding standard Li-ion/NMC batteries). ✅ Safety – LiFePO4 chemistry is non-flammable and stable under abuse. ✅ High Discharge Capability – 30A continuous (suitable for power tools, small EVs). Common Applications • Solar energy storage systems (home/grid storage) • Electric bikes/scooters (as part of a battery pack) • Power tools (replacing lead-acid or NMC packs) • Marine/RV power systems • Backup power stations Safety & Handling No protection circuit needed (LiFePO4 is inherently safer than NMC/Li-ion). Use a LiFePO4-compatible charger (3.65V max, not 4.2V Li-ion chargers). Avoid short-circuiting – Can still deliver dangerous current. Storage: Store at ~50% charge in a cool, dry place. WARNING: Do NOT expose the battery to water Do NOT expose the battery to fire & high temperature Do NOT short circuit, crush or disassemble Only use LiFePO4 charger Storage at 50% capacity, recharge every 3 months. The storage area should be clean, cool, dry and ventilated. Grade A 100% brand new
6S 12A Lithium Battery 18650 Charger PCB BMS Protection Board
[Lithium Battery Protection Board] Description PCB BMS 6 Series 22V 18650 Lithium Battery Protection Board is a 6 string 22V circuit power tool mostly used for solar lighting, for dedicated 18650 battery packs. It is designed for 3.7V 18650 models lithium batteries for charging, Protection from overcharge and over-discharge. Battery protection board, as the name suggests battery protection board is mainly rechargeable (Refers to the lithium battery) and protects the integrated circuit board. Lithium battery (rechargeable type) so need protection, is determined by its own characteristics. As the lithium battery, its material determines itself can not be overcharge, over-discharge, overcurrent, short circuit, and ultra-high temperature charge and discharge, so lithium battery lithium components will always follow A protective plate with a sampling resistor, and a current fuse. Application: Battery pack Consumer electronics product 12V voltage rating Power supply Power bank and charger Features/Specs: Battery: 6 Cell Overcharge detection voltage: 4.25 ± 0.025V Over-discharge detection voltage: 2.50 ± 0.08V Overcurrent Protection: 50A Working current: 12A Operating Temperature: -40~+85°C Balanced charge: None. Short circuit protection: Yes. Applicable assembly: Nominal 3.7V Batteries / 6 strings Length: 50mm Width: 32mm Height: 4mm Weight: 6gm Package Includes: 1 x 6S 12A Lithium Battery 18650 Charger PCB BMS Protection Board Note: Product Images are shown for illustrative purposes only and may differ from the actual product
32mm PVC Heat Shrink Sleeve Blue for Lithium Cell Pack (1 Meter)
[Sleeves] Description One of the best ways to seal your battery is by using heat shrink. It can protect your battery from short circuits, seal your battery against the weather and add a professional look to your DIY battery.PVC heat shrink is great for battery use, but it can sometimes become brittle over time and begin to crack at the edges or at sharp corners. One method around this is to use multiple layers. This strengthens the heat shrink and adds a second line of defence if one layer should begin to crack. It also allows you to use multiple pieces of heat shrink perpendicular to each other to cover all six sides of a battery instead of just four sides, thus completely sealing your battery. Adding a thin layer of foam around your battery can also help prevent the cracking of the heat shrink over time. 32mm PVC Heat Shrink Sleeve For Battery Pack Colour- Blue Radial Shrinkage- 9% – 21% Depending on the Size Material- Poly Vinyl Chloride Tensile Strength- Greater than or Equal to 4000 Pa/m2 Package Includes : 1 x 32mm PVC Heat Shrink Sleeve Blue for Lithium Cell Pack (1 Meter)
1203B PWM 6V 12V 24V 28V 3Amp DC Motor Speed Regulator
[Brushed DC motor Driver] The 1203B PWM DC Motor Speed Controller Module is a versatile motor control board designed to regulate the speed of brushed DC motors through Pulse Width Modulation (PWM) technology. By varying the duty cycle of the PWM signal, the controller provides smooth and efficient motor speed adjustment without significant power loss. In addition, the module supports a wide operating voltage range from 6V to 28V DC, making it compatible with various DC motors used in robotics, automation systems, DIY electronics, and industrial applications. As a result, users can easily control motor speed according to project requirements. Because of its PWM control method, the module maintains excellent torque even at lower speeds. Furthermore, it offers higher efficiency compared to traditional resistive speed control methods, reducing heat generation and power consumption. The onboard rotary potentiometer allows precise speed adjustment from 0% to 100%, enabling accurate control of motor performance. Moreover, the compact PCB design simplifies installation in space-constrained projects. ⚠️ Note: This module is intended for DC motor speed control only and should not be used as a voltage regulator for LEDs, lighting circuits, or other electronic loads. 🔹 Key Features PWM motor speed control technology Adjustable speed from 0% to 100% Wide operating voltage range High efficiency operation Low heat generation Compact PCB design Easy speed adjustment using potentiometer Stable motor control performance Suitable for brushed DC motors Simple wiring and installation 🔹 Technical Specifications Model: 1203B Product Type: PWM DC Motor Speed Controller Input Voltage: DC 6V – 28V Output Voltage: Linear with Input Voltage Maximum Continuous Current: 3A Peak Current: 5A (Short Duration) Speed Control Range: 0% – 100% Control Method: PWM (Pulse Width Modulation) PWM Frequency: Approx. 13kHz Efficiency: Up to 95% Operating Temperature: -20°C to +60°C Control Type: Rotary Potentiometer Module Dimensions: Approx. 32mm × 50mm × 15mm 🔹 Pin Configuration Motor+ : Motor Positive Terminal Motor- : Motor Negative Terminal Power+ : DC Input Positive (6V–28V) Power- : DC Input Negative (GND) 🔹 Applications This speed controller module is suitable for: DC motor speed control Robotics projects DIY electronics projects Small electric vehicles Cooling fans Water pumps Automation systems Educational projects Hobby motor control applications 🔹 Package Includes 1 × 1203B PWM DC Motor Speed Controller Module
Out of stockDC-DC 3V-35V To 4V-40V Adjustable Step Up Power Module High Power Boost Converter
[Step UP Buck Converter] This is dc voltage regulator boost module, high-power, low ripple with input voltage range 3-35V and output Voltage from 4V-40V. The output current range 0-12A, conversion efficiency up to 95%, it very suitable for 24V car power laptop power supply. Features: Mode of connection: Wiring terminals are free of soldering, IN is input, OUT is output. Suitable for 24V car or laptop power supply. Low ripples. High power. Input: 3V – 35V Output: 4V – 40V adjustable Efficiency: 95% (MAX) Module size: 37mm x 32mm x 15mm (L x W x H) Operating temperature: -40 ℃ – 85 ℃ Load capacity: 80W (MAX) Package Includes: 1 x DC-DC 3V-35V To 4V-40V Adjustable Step Up Power Module High Power Boost Converter