





The 3.7V 650mAh Li-Polymer Battery (Model: 802040) is a lightweight, compact energy solution designed for portable electronics and embedded systems. Featuring high energy density and a reliable 650mAh capacity, this rechargeable battery is ideal for smart gadgets, wearable tech, GPS units, audio modules, and compact DIY builds.
Built with Li-Po chemistry, it offers excellent cycle life, minimal self-discharge, and a thin form factor — making it perfect for space-constrained applications. A standard 802040 format ensures compatibility with many devices, and connectors can be customized.
Battery Type: Lithium Polymer (Li-Po)
Voltage: 3.7V
Capacity: 650mAh
Model Code: 802040
Rechargeable: Yes
Dimensions: ~8mm (T) × 20mm (W) × 40mm (L)
Weight: ~12–14g
Cycle Life: 300–500 cycles
Connector: Customizable (e.g., JST, Molex, or bare wires)
Discharge Rate: Typically 1C–2C