Polymer Li-Ion Battery 3.7V 500mAh 501424, 2-Pin
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Prices updated: 14 Oct 2026
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About this product
Single-cell polymer lithium-ion battery rated at 3.7 V and 500 mAh in a slim 24 x 14 x 5 mm pouch with a 2-pin connection. It is intended for compact electronics such as small sensors, wearable projects and portable DIY devices. Pair it with a protection and charging module for single-cell lithium cells.
Specifications
- Nominal voltage
- 3.7 V
- Capacity
- 500 mAh
- Dimensions
- 24 x 14 x 5 mm
- Chemistry
- Polymer Li-ion
- Connection
- 2-pin
Frequently asked questions
How do I connect the 2-pin lead without damaging the cell?
Confirm the polarity marking on the battery or its lead before connecting. Reversed polarity can damage the cell and the circuit it feeds, so connect through a protected board or a connector with clear polarity.
What charger should I use for this battery?
Use a single-cell Li-ion or LiPo charger that terminates at 4.2 V, ideally a module with built-in protection, and match its charge current to the 500 mAh capacity.
