Test/review of A123 ANR26650M1A 2300mAh (Green)

A123 ANR26650M1A 2300mAh (Green)







Official specifications:

  • Nominal capacity: 2.3Ah

  • Nominal voltage: 3.3V

  • Internal resistance: 10mOhm (10A DC 1s)

  • Recommended standard charge method: 3A to 3.6V CC/CV

  • Recommended fast charge current: 10A to 3.6V CC/CV

  • Maximum continuous discharge: 70A

  • Maximum pulse discharge: 120A (10sec)

  • Cycle life: Over 1000 cycles at 10C discharge

  • Recommended pulse charge/discharge cutoff: 3.7V to 1.6V

  • Operating temperature range: –30°C ~ 60°C

  • Storage temperature range: –50°C ~ 60°C



A old very high current LiFePO4 cell (Datasheet is from 2010).





Watch out for polarity!









Output voltage depends on load, it looks like I got a good cell and a bad cell (Probably due to storage).



















Conclusion

A very impressive high current cell (At least one of them). Modern LiFePO4 cells has gotten better, but not that much.



Notes and links

Vapcell told me that I was missing some cells in my comparator and they would be happy to supply them.

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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries