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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.

113440P 3.7V 1500mAh Lithium Polymer Rechargeable Li-Po Pouch Cell
[LiPo Cell] The 113440P 3.7V 1500mAh Lithium Polymer Battery is a compact and lightweight rechargeable Li-Po pouch cell designed for reliable power delivery in modern electronic applications. With a nominal voltage of 3.7V and a high capacity of 1500mAh, this battery is well-suited for DIY electronics, IoT devices, Bluetooth speakers, GPS trackers, medical devices, wearables, and portable gadgets. Manufactured using advanced lithium polymer chemistry, the battery offers stable discharge performance, low internal resistance, and long cycle life. Its flat pouch form factor allows easy integration into slim and space-constrained designs where cylindrical cells are not suitable. For safe operation, the battery should be used with a proper Li-Po charging circuit (CC/CV) and protection module (PCM/BMS) to prevent over-charge, over-discharge, over-current, and short-circuit conditions. ⭐ KEY FEATURES ✔ Nominal Voltage: 3.7V✔ Capacity: 1500mAh✔ Lithium Polymer (Li-Po) Chemistry✔ Rechargeable & Long Cycle Life✔ Slim pouch / flat cell design✔ Stable discharge & low self-discharge✔ Lightweight and compact✔ Suitable for DIY & OEM applications 🔧 TECHNICAL SPECIFICATIONS Model: 113440P Battery Type: Lithium Polymer (Li-Po) Nominal Voltage: 3.7V Rated Capacity: 1500mAh Max Charging Voltage: 4.2V Discharge Cut-off Voltage: ~3.0V Rechargeable: Yes Form Factor: Pouch / Flat Cell 🎯 APPLICATIONS DIY electronics projects IoT & embedded systems Bluetooth speakers & audio devices Wearable & medical devices GPS trackers Power banks & portable gadgets 📦 PACKAGE INCLUDES 1 × 113440P 3.7V 1500mAh Lithium Polymer Battery Cell(Quantity as per selected pack)

500mAh 3.7V Single Cell Rechargeable LiPo Battery (HCY-602530)
[LiPo Cell] 500mAh Rechargeable 3.7v LiPo Battery The 600mAh Rechargeable 3.7V LiPo Battery is a compact and high-performance power source designed for a wide range of DIY electronics, robotics, and wearable projects. With a nominal voltage of 3.7V and capacity of 500mAh, this 1S lithium polymer battery delivers a reliable and consistent power output for your low-to-medium power applications. Its lightweight and slim profile make it ideal for portable gadgets, RC toys, sensors, and IoT devices that require stable energy without adding bulk. One of the key advantages of this battery is its long-lasting runtime when used with efficient electronics. For example, if a device consumes an average current of just 2mA, the 600mAh capacity allows the battery to run for up to 300 hours (600mAh / 2mA) under ideal conditions. This impressive endurance highlights the battery’s suitability for long-duration tasks, especially in energy-conscious designs. With Witty Fox’s reputation for quality and durability, this LiPo battery is a dependable choice for both hobbyists and professionals looking for efficient power solutions. Features: High Capacity: 600mAh gives little devices a longer runtime. Consistent Performance: A nominal voltage of 3.7V guarantees stable output. It is rechargeable, so it can be used repeatedly for extended periods of time. Small Design: Elongated and light, ideal for projects with limited area Up to 300 hours of use at a current draw of 2mA is supported by smart power efficiency. Multiple embedded systems, microcontroller boards, and robotics kits can all be used with this versatile tool. Specifications: Specification Details Brand HCY Battery Type Lithium Polymer (LiPo) Nominal Voltage 3.7V Nominal Capacity 500mAh Battery Cell Configuration 1S (Single Cell) Rechargeable Yes Dimensions (LxWxH) 30 x 25 x 6 mm Weight 8 g(approx) Package Includes: 3.7V 500mAH (Lithium Polymer) Lipo Rechargeable Battery (Model – 602530)

DMEGC INR21700-45E 3.7V 4500mAh Li-Ion Battery
[Lithium Battery Cell] DMEGC Cylindrical Lithium-ion Cell 4500mAh 3.7V 21700 – High Capacity & Reliable Power The DMEGC Cylindrical Lithium-ion 21700 Cell is a high-performance, rechargeable lithium-ion battery with a 4500mAh capacity and a 3.7V nominal voltage. Designed for high energy density, long cycle life, and stable performance, this cell is ideal for portable electronics, power tools, electric vehicles (EVs), energy storage systems, and custom battery packs. You can check our others lithium cells click here. Product Data Sheet (INR 21700-45E) Key Features High Capacity & Voltage: 3.7V nominal voltage with a 4500mAh capacity for extended usage. Long Cycle Life: Over 1,000 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. Technical Specifications Model: 21700 Nominal Voltage: 3.7V Nominal Capacity: 4500mAh Minimum Capacity: 4400mAh Charge Voltage: 4.2V Discharge Cut-off Voltage: 2.5V Cycle Life: >1,000 cycles (80% DOD) Max Charge Current: 1C (4.5A) Maximum Discharge Current: 2C (9.0A) Dimensions: Diameter: 21mm x 70mm Weight: Approximately 70g Applications The DMEGC 4500mAh 21700 cell is widely used in various applications: Portable Electronics & Power Banks Perfect for laptops, flashlights, power banks, and other consumer electronics, ensuring long-lasting power. Power Tools & DIY Battery Packs Provides consistent high power output, making it ideal for cordless drills, electric screwdrivers, and other tools. Electric Vehicles (EVs) & E-Bikes Offers a stable and high-energy output for electric bicycles, scooters, and lightweight electric vehicles. Energy Storage Systems Can be used in solar energy storage systems, home battery banks, and off-grid applications. Why Choose DMEGC Cylindrical Lithium-ion Cell 4500mAh 3.7V 21700? Superior Lifespan: Long cycle life compared to standard lithium-ion cells. 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. Package Includes: 1 x DMEGC INR21700-45E 3.7V 4500mAh Li-Ion Battery

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)

2600mAh DMEGC INR18650-26E 3.7V Li-ion Battery
[Lithium Battery Cell] DMEGC Cylindrical Lithium-ion 18650 Cell 2600mAh DMEGC INR18650-26E 3.7V Li-ion Battery, The DMEGC Cylindrical Lithium-ion 18650 Cell is a high-performance, rechargeable lithium-ion battery with a 2600mAh capacity and a 3.65V nominal voltage. Designed for high energy density, long cycle life, and stable performance, this cell is ideal for portable electronics, power tools, electric vehicles (EVs), energy storage systems, and custom battery packs. You can check our others lithium cells click here. Product Data Sheet (INR18650-26E) Key Features High Capacity & Voltage: 3.65V nominal voltage with a 2600mAh capacity for extended usage. Long Cycle Life: Over 1,000 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. Technical Specifications Model: 18650 Nominal Voltage: 3.65V Nominal Capacity: 2600mAh Minimum Capacity: 2500mAh Charge Voltage: 4.2V Discharge Cutoff Voltage: 2.5V Cycle Life: >1,000 cycles (80% DOD) Max Charge Current: 1C (2.6A) Max Discharge Current: 2C (5.2A) Dimensions: 18mm x 65mm Weight: Approximately 45g Applications The DMEGC 2600mAh 18650 cell is widely used in various applications: Portable Electronics & Power Banks Perfect for laptops, flashlights, power banks, and other consumer electronics, ensuring long-lasting power. Power Tools & DIY Battery Packs Provides consistent high power output, making it ideal for cordless drills, electric screwdrivers, and other tools. Electric Vehicles (EVs) & E-Bikes Offers a stable and high-energy output for electric bicycles, scooters, and lightweight electric vehicles. Energy Storage Systems Can be used in solar energy storage systems, home battery banks, and off-grid applications. Why Choose DMEGC Cylindrical Lithium-ion Cell 2600mAh 3.65V 18650? Superior Lifespan: Long cycle life compared to standard lithium-ion cells. 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. Package Includes:- 1x DMEGC INR 18650-26E lithium-ion rechargeable battery.

1S 12A 18650 3.7V lithium battery protection plate 6 MOS
[Lithium Battery Protection Board] Nowadays Li-ion batteries are most popular to be used in many indoor and outdoor gadgets, these batteries are preferred due to their high charge storage capacity. such batteries are widely used in today’s portable devices. they are compact, more efficient and have a high energy intensity compared to other types of batteries. One drawback of such a battery is that we need to continually monitor their charging and discharging process if we do not do this, it badly affects battery life and also reduces the charge storing capacity. If we discharge such battery below certain voltage range, then the battery cell has a high risk of damage and if we overcharge such battery then it may explode. To overcome such issues, we can use battery protection and battery charging circuits such as this product. This is Li-ion single-cell charger/protection circuit which can be used to charge a single cell of 15 Amp capacity or 2500Mah parallel-connected 5 to 6 li-ion cells. In this MOSFET are employed to do the monitoring task which protects our battery cells from overcharge, over-discharge, and from short circuit. Protection : Overcharge protection. over-discharge protection. short circuit protection. overcurrent protection. Wiring instructions: B+ battery is positive. B- battery negative. P+ outputs the positive input for the battery pack. P- outputs the negative electrode for the battery pack. Specifications and Features : Overcharge detection voltage : 4.25 + 0.05V. Over charge release voltage : 4.23 + 0.05V. discharge detection voltage : 2.45 + 0.1V. Ceiling continuous current : 12A. Overcurrent detection current : 15A. Input Charging voltage : 4.2V. IC components : DW01+8205A. Package Includes : 1 x 1S 18650 3.7V lithium battery protection plate 6 MOS.
Out of stockBAK NMC 18650 2600mAh (3c) Lithium-Ion 3.6V Battery A+ Grade
[Lithium Battery Cell] The BAK Cylindrical Lithium-ion 18650 Cell is a high-performance, rechargeable lithium-ion battery with a 2600mAh capacity and a 3.65V nominal voltage. Designed for high energy density, long cycle life, and stable performance, this cell is ideal for portable electronics, power tools, electric vehicles (EVs), energy storage systems, and custom battery packs. You can check our others lithium cells click here. Features: High energy density High working voltage for single battery cells. Pollution-free Long cycle life No memory effect Capacity, resistance, Voltage, and platform time consistency is good. Good consistency and low self-discharge. Lightweight, small size Shape: Cylindrical Battery Battery Type: Lithium-Ion Battery High performance and capacity Flat top to suit many devices fitting. Specifications: Model: NMC 18650 Cell Type: (3C) Watt-hours: 9.36Wh Nominal capacity: 2600mAh by standard charge and discharge 2600mAh Minimum capacity: 2500mAh by standard charge and discharge 2500mAh Nominal voltage: 3.60 V Charge cut-off voltage: 4.20 V Discharge cut-off voltage: 2.75 V Max charge current: 1C (25℃,not for cycle life ) Max discharge current: 3C (25℃,not for cycle life ) Internal resistance: ≤30 mΩ(AC Impedance, 1000 Hz) Weight: ≤ 48g Packages Includes: 1 x BAK NMC 18650 2600mAh (3c) Lithium-Ion 3.6V Battery