I had a bad habit of touching the negative pole of a AA or AAA battery to my upper lip, and the positive to my tongue, and you can feel a bit of current and sort of gauge how much charge the battery had. One day I saw this mini battery for a camera just laying around. I did it without realizing it was an A23 12 volt camera battery. I literally saw lightning in my eyes and never did that again without making sure I wasn’t going over the usual 1.5 volt AAs.
I was installing lights once on a stepladder. Asked my girlfriend at the time, “can you switch off the fuse for the bedroom?”. “Sure thing!” was the reply. I got a massive jolt that spread down my body and rattled the ladder. Somehow didn’t fall. Just stepped down and processed a few things.
If it’s a 9 volt or watch battery I just lick the terminals
I had a bad habit of touching the negative pole of a AA or AAA battery to my upper lip, and the positive to my tongue, and you can feel a bit of current and sort of gauge how much charge the battery had. One day I saw this mini battery for a camera just laying around. I did it without realizing it was an A23 12 volt camera battery. I literally saw lightning in my eyes and never did that again without making sure I wasn’t going over the usual 1.5 volt AAs.
Edit for clarity
I was installing lights once on a stepladder. Asked my girlfriend at the time, “can you switch off the fuse for the bedroom?”. “Sure thing!” was the reply. I got a massive jolt that spread down my body and rattled the ladder. Somehow didn’t fall. Just stepped down and processed a few things.
Lights were on the fuse marked “lights” and she switched off the wall sockets?
so it was a misunderstanding between “sure thing” meaning “I’ve already done it” and “sure thing” meaning “I’m on may way to do it”
It’s still the best way to determine if it has charge and how full it is and nothing will change my mind.