Now, THAT is very useful to know. I'm always wondering if the batteries in my drawer are good or bad and now I will have a simple way to tell. Thank you very much, Peter! Jim Patrick
dang it... dont try this with your car battery guys... off to the store.
If you read the comments section, not all batteries from different makers have the same bottoms, so opposing brands might react differently based on how their bases are constructed.
cool! I'll just leave the meter in the drawer. Nathan, I sure HOPE you're kidding!!! LOL
Snake oil - methinks!