Test/review of Soshine CR2 LiFePO4 400mAh (Black)

Soshine CR2 LiFePO4 400mAh (Black)

Official specifications:

  • Battery Capacity (Mfg Rated): 400 mAh

  • Battery Chemistry: LiFePO4

  • Battery Feature: Rechargeable

  • Battery Form Factor: 15266

  • Battery Rated Voltage: 3.0 V

A CR2 sizes LiIon battery with LiFePO4 chemistry (i.e. 3.2V).

The cells are not perfectly matches and only have about half the rated capacity, but the voltage is higher than printed on the cell (As expected).

These small cells do have have time to get really hot during discharge.

On this curve is is easier to see that this type of cell has a fairly constant voltage, until they are empty.


The cells are not very impressive, but I do not know if there are better CR2 sized cells on the market.

Notes and links

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Comparison to other LiIon batteries