Test/review of Ansmann AAA 1100mAh (Silver-blue)

Batteries and Chargers Rechargeable Batteries
1

Ansmann AAA 1100mAh (Silver-blue)







Official specifications:

  • Nominal capacity: 1100mAh

  • Minimum capacity: 1050mAh

  • Maximum continuous current: 3000mA

  • Standard charge: 110mA

  • Quick charge: 330mA

  • Fast charge: 1100mA

  • Recommended charge termination: 0…5mV, 0.8…1°C/min, 45-50°C

  • Trickle charge current: 10…50mA

  • Continuous overcharge: <100mA 1year: no conspicuous deformation and no leakage

  • Self discharge: >60% remaining after 28days at 20°C




Maximum temperature raise at different discharge currents: 1A:+0,1°C, 2A:+0,1°C, 3A:+0,1°C, 5A:+0,1°C
This is high capacity cells from Germany











The two cells match fairly well.















Internal resistance measured by pulsing 0.5A on/off.


Conclusion

These cells are some of the highest capacity AAA cells, but because these cells are not low self discharge they are best used for equipment that uses some power and is used frequently.



Notes and links

How is the test done and how to read the charts
Compare to other AA/AAA batteries: Alkaline/NiMH/Lithium
2

Thank you for checking these out.

One of the main problems I’ve found with this kind of very high capacity NiMh (AA/AAA) is the internal resistance goes way up in short order, capacity goes down, and self-discharge becomes a problem. Simply won’t buy this type of cell anymore.

3

Do you test nimh straight from the package or cycle a few times to get more mah?

4

I cycle one time, then I start from the lowest current.

5

Agree.

6

Thanks HKJ!