Hi, I'm new to this and have been looking at using my multimeter to check battery voltages. Now I've found plenty of info and videos of people explaining what voltages should look like for fully charged batteries of different types, but I've not really found anything showing what the numbers look like at various levels of discharge. Is there a datasheet or chart that anyone knows of that would tell me roughly what percentage of charge my battery is at, for different types of batteries? eg. So I can say, I have a 6 cell nimh which is 7.2v (6 x 1.2v) and it's reading X.Xv on my multimeter, so that means it's about Y% charged. And also so I can see at what voltage various battery types are considered dead. I guess mainly nimh and lipo, but even things like AAs, more out of interest than anything.
If anyone could point me to any info, I'd appreciate it, as at the mo I can see my battery voltage, but I don't really know anything useful to do with that information!
Cheers