NIMH AA Batteries
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While I’m a big fan of rechargeable NiMH AA batteries, I’ve noticed something odd (and quite honestly, disappointing) in the last few months. A bunch of the NiMH AA batteries here at ranchero indebto are draining awfully quickly. This problem cropped up with the NiMHs that are installed in our programmable thermostat … within weeks of swapping in a freshly charged set of AAs, the “replace battery” warning began flashing.
I swapped in another set and the scenario repeated itself, leading me to believe that I’ve got a bad batch of AA NiMHs. While it’s impossible to tell the state of charge without a battery tester, I’d reckon that this handful of (expensive!) batteries is discharging way faster then they should. We haven’t gotten 100s of charge cycles out of the batch … only a few dozen.
After it happened again this week, I got off my duff and did something.
I’m not turning my back on the technology … just switching brands. After doing a bit of research, I decided it was time to pick up a dozen Sanyo eneloops AAs, but I couldn’t find a store that carried them locally.
Amazon to the rescue.
I found an Amazon merchant with a remarkably low price, but quickly found out why their price was so low … they were charging $3.99 shipping and handling for every item. When I went back to the main sales page, I noticed that the Sanyo eneloop AAs were eligible for free super saver shipping, with a minimum $25 order.
With a trio of four packs I landed three dollar savings over the lowball price and never had to leave my desk…
3 Comments
Pre-charged Rechargeable Batteries ~ Technobabble
March 10th, 2009
at 3:54am
[...] time. Sanyo eneloops are one of the exceptions to the rule. When our box of competitively priced NiMH AA batteries arrived from Amazon last week, we immediately ripped open the package and set about installing the [...]
Lou
March 24th, 2009
at 7:24am
Where is the rest of the article? With the article ending the way it did, it was no more than a glorified advertisement for Sanyo!
Where’s the meat, so to speak?
Dan Gray
March 24th, 2009
at 8:54am
@Lou - Many thanks for your thoughts, but I’ve never gone out of my way to write glorified advertisements. :)
The Eneloops worked as they should, right out of the packaging. They’ve been installed for a few weeks now in our programmable thermostat and in a couple of remote controls.
I’ll update the article once they hit their first recharge cycle.