Leaking NIMH's ?

[absoLite]

Leaking NIMH\'s ?

I wonder if NIMH's (AA size 1,2 V) are leaking like normal AA's 1,5 V when they get empty or warm ?
I searched and didn't find a thread regarding this.

The reason for my question is this: For a backup light in the house, would it be sufficient to use a 4-AA LED light with NIMH's or would it be better to use a lithium-powered one ?

I'm aware that the NIMH's do loose some power during prolonged storage, though.

 

[snakebite]

Re: Leaking NIMH\'s ?

i found that 25% of the green china cheapies leak and go bad
they leak even if you leave them in the carton unused.
otherwise it takes abuse to make nimh leak.

 

[SilverFox]

Re: Leaking NIMH\'s ?

Hello AbsoLite,

Snakebite said it well.

As far as using NiMh in a back up light, as long as you remember to cycle the cells and recharge them every 4 months or so, they should work fine.

I keep alkaline or lithium cells in my back up lights and use rechargeable cells in the lights I use often. I find this system works well for me.

Tom

 

[eluminator]

Re: Leaking NIMH\'s ?

I guess I've been lucky. I've never had a NiMH leak. I use about 20 generic cells daily, along with a few branded ones. I have 14 generics that are in those somewhat silly solar powered yard lights. They've been charged and discharged daily for over two years in temperatures from below zero F to 100 F. They are all still working, though they may have lost some capacity. Considering they are no doubt being charged with a very dumb charger, it would be surprising if they didn't lose some capacity.