Even though alkaline batteries are slowly disappearing in exchange for the re-chargeable nickel metal hydride and lithium in most consumer electronic devices, there are still a few people who use them. Here’s a nice project to test the strength of the remaining AA batteries you have lying around your house if you can’t find your multimeter amid the clutter.
Battery meter Link
4 thoughts on “Build a battery meter, show your friends that alkalines aren’t “dead” yet”
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Don’t be fooled — it’s not just for alkalines.
I don’t always keep my collection of NiMH cells perfectly sorted, so I use the meter to double-check which cells are fresh, which are depleted and need a trip to the charger, and which have been on the shelf long enough to need topping off.
Handy as the dickens, and a lot more specific (especially across different battery chemistries) than the red / yellow / green analog battery meters you can buy at Radio Shack.
In what universe are alkaline batteries disappearing? Certainly not this one.