Li-Po Battery 3.7V 600mAh 40x30x4mm 2-Wire Leads (403040)
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Prices updated: 14 Oct 2026
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About this product
A 1S Li-Po pouch cell rated 3.7V and 600mAh, supplied with red and black leads for direct connection to a circuit. It suits compact devices such as wearables, IoT nodes and small electronics projects. It must be charged only with a Li-ion/Li-Po constant-current/constant-voltage (CC/CV) charger.
Specifications
- Nominal voltage
- 3.7 V
- Capacity
- 600 mAh
- Dimensions
- 40 x 30 x 4 mm
- Chemistry
- Li-Po (pouch cell)
- Leads
- 2-wire, red/black
- Cells
- 1S
- Charging
- Li-ion/Li-Po CC/CV charger only
Frequently asked questions
How should I charge this battery?
Use a single-cell (1S) Li-ion/Li-Po charger with constant-current/constant-voltage (CC/CV) charging, which stops at 4.2 V per cell. Charging from a fixed or unregulated source can damage the cell and create a fire hazard.
Does it need a protection circuit?
The listing does not mention a built-in protection circuit. For safe use, add a 1S Li-Po protection board that guards against over-charge, over-discharge and short circuit, and avoid discharging the cell below about 3.0 V.
