The 3.7V 2000mAh Lithium Polymer Battery from KP Battery is a single-cell LiPo pack at 3.7V nominal voltage and 2000mAh capacity, terminated with a 2-pin JST connector. Lithium polymer cells are manufactured as flat flexible pouches rather than rigid cylinders that shape makes them easy to fit inside slim enclosures, wearable housings, and compact instrument cases where a cylindrical 18650 cell would leave dead space around its curved body. At 2000mAh, this pack stores 7.4Wh of energy per charge, delivering approximately 20 hours of runtime at 100mA continuous draw.
The lithium polymer battery single-cell configuration produces 3.7V nominal, reaching 4.2V at full charge when connected to a single-cell LiPo balance charger. The 2-pin JST connector mates with standard LiPo charger ports and the onboard LiPo header on development boards that include single-cell Li-Polymer charging management. Boards equipped with a TP4056, MCP73831, or similar single-cell LiPo charge IC accept this connector directly for both charging and regulated power output.
The rechargeable lipo battery flat pouch format suits where the battery shape needs to conform to available space – tucked flat behind a display, laid across the base of a wrist-worn device, or stacked above a PCB in a shallow enclosure. A LiPo-specific charger terminating at 4.2V must be used to charge this cell generic USB chargers and Li-Ion chargers designed for cylindrical cells may not implement the correct charge profile. Never discharge below 3V per cell or continue using a visibly swollen pack. This battery is working on lightweight portable power and single-cell LiPo. Available on StemVolt.
Related Product:
- Checkout 3.7V 600mAh Lithium Polymer Battery
Features:
- 2000mAh capacity stores 7.4Wh nearly double the 1100mAh LiPo variant
- Flat LiPo pouch conforms to slim enclosures and wearable device housings
- 2-pin JST connector mates with TP4056 and MCP73831 charge board headers
- Single-cell 3.7V charges to 4.2V with any single-cell LiPo balance charger
- KP Battery branded with consistent capacity and connector specifications
Technical Specifications:
| Specification | Details |
|---|---|
| Product Type | Li-Po Battery |
| Voltage | 3.7V DC |
| Capacity | 2000mAh |
| JST Connector | 2-Pin JST |
| Battery Composition | Lithium Polymer |
| Cell Configuration | Single Cell (1S) |
| Reusability | Rechargeable |
Applications:
- 3.7V 2000mAh Lithium Polymer Battery powers portable ESP32 IoT device in slim enclosure
- LiPo battery supplies single-cell power to Raspberry Pi Zero with TP4056 charge module
- Lithium polymer battery 2000mAh powers wearable health monitor inside slim wristband enclosure
- Battery 2000mAh runs compact data logger in field deployment battery pack
- Rechargeable LiPo battery powers portable Bluetooth speaker in compact flat enclosure
Package Includes:
-
1 x 3.7V 2000mAh Lithium Polymer Battery














Deepak Sharma –
Fast shipping, COD availability, and technical support made this battery a dependable choice.
Viswanathan Iyyer –
Best educational kit store provides fast shipping service
Pankaj Khandelwal –
Shipment arrived safely
Rajesh Chaturvedi –
No regrets with the purchase
Mahendra Rathore –
3.7V 2000mAh KP LiPo battery delivered reliable backup and stable performance in robotics projects.