Quote Originally Posted by Dane View Post
Thanks for the replies guys! Anything I should watch out for like batteries that are BAD to use?

Also does anyone know about re-using the washers from previous batteries and then just inserting a hearing aid battery inside of them?
The alkaline and silver oxide 625 batteries are bad - their voltages are wrong and, in the case of the alkaline versions, inconsistent.

As for your reference to "washers from previous batteries" I'm not sure what you mean, because I've never disassembled a battery, and therefore wasn't aware that there might be a re-usable washer inside.

I'd be concerned that the physical size and shape of any included washer wouldn't ensure that the necessary connections would be made.