@jprjr @TechConnectify Sometimes it's useful to know just how much charge is left in a battery though, like, say, if you remove the batteries out of something that no longer works or something that you're storing away. It's also useful to be able to quickly see if the reason the device stopped working is a dead battery, too.
@baralheia @TechConnectify That's true but, I find that "sometimes" is pretty rare. If I pop non-fresh batteries into something and it doesn't work, I don't bother testing the batteries - I pop in fresh ones. If the thing still doesn't work, then I can be pretty confident it's not the batteries.
I could have a battery tester around and that may save me a trip to a store for fresh batteries. But I can get batteries at any store and there's usually something else I can get while I'm out anyway.