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AAA NiMH will not charge

3848 Views 11 Replies 9 Participants Last post by  patcash
Last year I purchased several 4 packs of AAA NiMH batteries on sale.
These were stored properly in the original package,
Got them out today and tried to charge them in a new AA AAA wall plug in unit, the charger defaulted on all of them and would not charge the AAAs.
The charger works fine because I just charged some new NiMH AAs with no problems...also the mA of the AAAs are compatible with the charger.
Why are these unused 1 year old NiMH AAAs not taking a charge?
Thanks for your help.
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I have been happy with the Maha C204W charger.
It has a mode that fully discharges before fully recharging.
Li-ions are not safe chemistry. If you do use them they should have built in discharge protection, and a quality li-ion specific charger to go with them.

Eneloops are the way to go for ni-mh in AAA and AA devices. The newer ones hold 85% of their charge for well over a year and can be recharged 'up to' 1500 times.

I have them in all my AA devices and they perform as well as L91 lithiums except you can charge them up once they go flat. You can also push them pretty hard in high drain devices.
+1 on Eneloops. Worth the extra cost if you need reliability.
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