Remember Duracell’s PowerCheck? The idea was that a strip built into the battery would show if the battery was good or not. Sure, you could always get a meter or a dedicated battery tester &#…
I do this with AAs. Basically put the
side with the bump (positive) on the tip of the tongue and touch the flat (negative) side with a wet finger. It gives out a mild but distinctive ‘taste’, not enough to tingle but definitely something I am able to notice, when the cell has decent juice.
I do this with AAs. Basically put the side with the bump (positive) on the tip of the tongue and touch the flat (negative) side with a wet finger. It gives out a mild but distinctive ‘taste’, not enough to tingle but definitely something I am able to notice, when the cell has decent juice.