Test / Review: RediLast 3100mAh (Black)

Batteries and Chargers Rechargeable Batteries
1

RediLast 3100mAh (Black)




Official specifications:

  • 3100mAh Capacity
  • Protected against: overcharge, overdischarge, short circuit
  • Cell Made in Japan
  • 4.20v±0.05 charge voltage
  • 2.50v cut off voltage
  • 3.6v Nominal voltage
  • Charging type: CC/CV
  • Max charge current: 1C (3.1A)
  • Recommended charge current .3C
  • Max discharge current: 6.2A
  • Cell Size: ~18.5mm x 68.8mm





The cell used can be discharged down to 2.5 volt, in my test I only discharges to 2.8 volt, i.e. I do not measure the full capacity. But then, not all lights will be able to use the full capacity.
























Conclusion

This battery uses a good cell, this secures many things:

  • The batteries does match in capacity, i.e. they can be used in series.
  • The battery is very safe.
  • The battery has the specified capacity (But only when tested at the specified conditions).



The battery has a very high current limit, this does not mean it can sustain more current than other 3100 mAh batteries, but just that the safety circuit will react later.
All in all a very good battery.



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

2

Thank you, HKJ.

3

HKJ love your reviews man.

4

thanks - really valuable information, especially for those of us that lack the equipment for high amp drains

5

Thanks for the great review! where did you purchase these?

6

From the RediLast website.

7

Nice.

8

Thank you , again, for a great test. These cells look to be of a very high quality.

HKJ, would it be too much to request an overlay with the Callie's cells, ostensibly the same cell, on a couple of pertinent graphs?

Thanks very much.

9

I am working on a comparison, that will include all tested batteries. Maybe I will get the small version of it posted later today.

I do not know when the larger comparison is ready, it will probably be 4 or 5 articles with about 100 charts and links to all the individual battery reviews.

10

Thank you HKJ! Always making pertinent reviews and you don't write emotional misleading words.