Test/Review of A123 18650 1100mAh (Yellow)

HKJ · 18.08.2012, 17:48

A123 18650 1100mAh (Yellow)

This is a battery that can deliver very high amount of power!

Official specifications:

Nominal Capacity & Voltage: 1.1Ah, 3.3v
Recommended standard charge method: 1.5A to 3.6v CCCV, 45min
Recommended fast charge current: 5A to 3.6v CCCV, 15min
Max continuous discharge: 30A
Pulse discharge at 10sec: 65A
Cycle life at 10C discharge, 100% DOD: Over 1,000 cycles
Recommended charge/cutoff voltage: 3.5v to 2v
Operating temp: -30 ~ +60degC
Cell Weight: 39g

This battery has a lower voltage than the usual LiCoO2 batteries and also much lower capacity.

There is not much capacity, but the capacity is available at very high currents.

The battery is able to deliver 30A, but only for two minutes!

The battery has no protection and I discharged it before I was finished with this test.

I only uses a 1A charger current, the battery can be fast charged with a 4A current.

Conclusion

This battery uses a "safe" chemistry, but this does not make the battery completely safe due to the high currents it can deliver.
This is a very interesting battery for some applications, but due to the low voltage it is not really good for flashlights (leds need a lower Vf) and who would want a small super bright light that only works for two minutes (This is probably the wrong place to say that)?
This battery can only rate a as very good.

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

18.08.2012, 17:48	1
HKJ Модератор своих разделов Регистрация: 03.07.2010 Последняя активность: 10.10.2022 08:53 Адрес: Copenhagen, Denmark Сообщений: 1652 Сказал(а) спасибо: 0 Поблагодарили: 2983 раз(а) в 1024 сообщениях	Test/Review of A123 18650 1100mAh (Yellow) A123 18650 1100mAh (Yellow) This is a battery that can deliver very high amount of power! Official specifications: Nominal Capacity & Voltage: 1.1Ah, 3.3v Recommended standard charge method: 1.5A to 3.6v CCCV, 45min Recommended fast charge current: 5A to 3.6v CCCV, 15min Max continuous discharge: 30A Pulse discharge at 10sec: 65A Cycle life at 10C discharge, 100% DOD: Over 1,000 cycles Recommended charge/cutoff voltage: 3.5v to 2v Operating temp: -30 ~ +60degC Cell Weight: 39g This battery has a lower voltage than the usual LiCoO2 batteries and also much lower capacity. There is not much capacity, but the capacity is available at very high currents. The battery is able to deliver 30A, but only for two minutes! The battery has no protection and I discharged it before I was finished with this test. I only uses a 1A charger current, the battery can be fast charged with a 4A current. Conclusion This battery uses a "safe" chemistry, but this does not make the battery completely safe due to the high currents it can deliver. This is a very interesting battery for some applications, but due to the low voltage it is not really good for flashlights (leds need a lower Vf) and who would want a small super bright light that only works for two minutes (This is probably the wrong place to say that)? This battery can only rate a as very good. 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 __________________ My website with reviews of charges, batteries and other stuff: http://www.lygte-info.dk/