Polymer Li-Ion 3.7V 2500mAh Single Cell Battery 100x50x4.7mm
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Prices updated: 13 Oct 2026
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About this product
Single-cell polymer Li-ion battery rated 3.7 V and 2500 mAh, measuring 100 x 50 x 4.7 mm. Its flat format suits portable devices, power projects and DIY battery packs where thin cells fit the enclosure. Charge it with a Li-ion/LiPo charger that stops at 4.2 V.
Specifications
- Chemistry
- Li-ion polymer
- Nominal voltage
- 3.7 V
- Capacity
- 2500 mAh
- Dimensions
- 100 x 50 x 4.7 mm
Frequently asked questions
Does this cell need a protection circuit?
Yes, for most DIY uses. A protection circuit guards against over-charge, over-discharge and short circuits, which matters more for a high-capacity cell.
How do I connect it to a load?
Use a protected output or a regulator suited to a 3.7 V lithium cell, and keep the load within the cell's rated discharge current. Confirm the tab polarity before soldering or connecting.
