Overdischagred Eneloop AAA

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xed888
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Overdischagred Eneloop AAA

Is it possible to bring back an Eneloop AAA that has been discharged to 0.3V?

Any ideas?

Thanks!

Chloe
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I don’t see why not. I have fully discharged eneloops before with no issue (reading 0V, not even lighting eneloopy on red).

Paranid
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Yes, of course. Just charge normally. Some smart chargers won’t charge them because of the low voltage (error warning) so you might have to put them in dumb charger for a minute or two.

Keychain flashlights FTW!

xed888
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ok thanks. Nitecore i4 counts as dumb charger?

unknown00101
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xed888 wrote:
ok thanks. Nitecore i4 counts as dumb charger?

Nope, it’s a smarty! :). It recognizes differences between NiMH and Liion.

Bort
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I have many NiMH that have drained to 0V and i have recharged them successfully (not eneloop yet)
I have a BC700 smart charger that won’t take 0V batteries so i have to put them in a dumb charger for 30 seconds so they register enough voltage that the BC700 recognizes them.

How did you get he battery so low, most of mine self discharged but an eneloop should take a decade or more to discharge from full to empty

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Gj
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Who said anything about self-discharge? Put it in a device, turn it on, go about your business for a week or so.

Bort
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Gj wrote:

Who said anything about self-discharge? Put it in a device, turn it on, go about your business for a week or so.


I have nothing that will run on 0.3V, my digital camera, GPS and other electronics die on average at 1-1.1V

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"

 

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Bort wrote:
Gj wrote:

Who said anything about self-discharge? Put it in a device, turn it on, go about your business for a week or so.


I have nothing that will run on 0.3V, my digital camera, GPS and other electronics die on average at 1-1.1V

Don’t you have aa or aaa Lifhts? (I know you are interested in some aa lately). Mine suck up to the las electron of the batts if you forget about them I had no problems charging them back, I think this is not a big issue in nimh as is in liion

Mooooooo

unknown00101
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totilde wrote:
Bort wrote:
Gj wrote:

Who said anything about self-discharge? Put it in a device, turn it on, go about your business for a week or so.


I have nothing that will run on 0.3V, my digital camera, GPS and other electronics die on average at 1-1.1V

Don’t you have aa or aaa Lifhts? (I know you are interested in some aa lately). Mine suck up to the las electron of the batts if you forget about them I had no problems charging them back, I think this is not a big issue in nimh as is in liion

That is great to know, I held off buying an 8 pack of AA eneloops because they would be going in a trail cam… that I often forget to check at reasonable intervals.

As long as they last 5-6 recharges they’re cheaper than alkaline. Smile

Bort
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unknown00101 wrote:
totilde wrote:
Bort wrote:
Gj wrote:

Who said anything about self-discharge? Put it in a device, turn it on, go about your business for a week or so.


I have nothing that will run on 0.3V, my digital camera, GPS and other electronics die on average at 1-1.1V

Don’t you have aa or aaa Lifhts? (I know you are interested in some aa lately). Mine suck up to the las electron of the batts if you forget about them I had no problems charging them back, I think this is not a big issue in nimh as is in liion

That is great to know, I held off buying an 8 pack of AA eneloops because they would be going in a trail cam… that I often forget to check at reasonable intervals.

As long as they last 5-6 recharges they’re cheaper than alkaline. Smile


I have no AA or AAA lights, hence my interest, i have lots of eneloops that are used in other devices so i figure better to get an AA light, NiMH is a lot more durable then li ion batteries.
If i understand correctly over discharging NiMH will lead to reduced cycles and faster self discharge, but you should still get many, many times more then 5 or 6 recharges, if you get less then 100 it would be shocking

The Journal of Alternative Facts TM

"It is critical that there is a credible academic source for the growing and important discipline of alternative facts. This field of study will just keep winning, and we knew that all the best people would want to be on board. There is a real risk in the world today that people might be getting their information about science from actual scientists"