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 :)

  • @[email protected]English
    12•1 month ago

    any voltmeter will do, and then… you have a voltmeter!

    if you want you can put it under load and test as well.

    • @[email protected]
      11•1 month ago

      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.

    • dbx12
      5•1 month ago

      Now I know why there is a dedicated BATT 1.5V and BATT 9V setting on my multimeter. Always thought “why is it there if there is already a 20V= setting?”