Ok this is strange. I vape untill the batteries got dead and them pop em in the charger, when thier done charging I pop em back in my Infinity and nada, zip, nothing. Pop em out test em on a volt meter both single and in series and they check out fine, pop them back in and nope nada nothing. Ok so I pop in a different set thats charged and all is fine. I mark them so I know which they are and after a few days I try them again just because and poof they work fine, so ok these are marked and then a different set does the same thing. Am I taking to many drugs or not enough??? LOL