Nanc.....here is one thread that talks about it....http://www.e-cigarette-forum.com/forum/vapor4life/174934-havent-had-month-batteries-dying.html
and here: http://www.e-cigarette-forum.com/forum/vapor4life/158035-how-do-you-clean-your-batteries.html
and here: http://www.e-cigarette-forum.com/forum/vapor4life/158035-how-do-you-clean-your-batteries.html