I’m slowly switching to rechargeable ones (Ikea Ladda ones), but we still have lots of other batteries around.
Do you have a favourite device to test them with? Ideally it could test many different types (regular, coin), but I’m ok with just AA/AAA if there is a cheap/reliable option.
When I did a search just now, I saw recommendations both for and against multimeters/voltmeters. Some said it was easier, and others said that it wasn’t accurate because of testing under load.
Thanks :)
Seconding this, but with the footnote that measuring a battery under load (doesn’t have to be a lot) is vital for accurate results. Spent batteries tend to measure OKish voltages until you put some load on them, during which you will see a massive voltage drop.