AA/AAA Charging Board or Single Battery Charger?

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Bright_Mike
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Last seen: 2 years 3 months ago
Joined: 03/09/2014 - 11:30
Posts: 331
AA/AAA Charging Board or Single Battery Charger?

I like the 4056 charging boards for li ion, are there any for AA or AAA batteries?

I have single or 3 aa/AAA lights, hard to get it even for a regular charger. I guess I could try to run down a 3 and single. Any good single AA/AAA chargers?

FWIW just ordered this:

http://pages.ebay.com/link/?nav=item.view&id=171708319748&alt=web

200ma seems slow, though

vex_zg
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Last seen: 3 years 7 months ago
Joined: 08/10/2014 - 11:08
Posts: 420
Location: Sweden

to correctly determine end of charge for NiMH it is needed to detect slowdown of voltage rise or small drop, typically 5-10mV.
To detect this drop/slowdown – current must be high enough. 200mA is definitely not enough for an AA, and most likely not enough for AAA.

So most likely this one is just a “dumb” charger not detecting end of charge at all, just keeping the battery on trickle charge forever. Or at least until some timer doesn’t expire.

edit: IKEA LADDA is a cheap and good charger, seems to have 4 independent chargers with correct dV/dT algorithm, reviewed by HKJ

http://www.ikea.com/se/sv/catalog/products/80241307/