RE: Winter Battery Revival
The wall wart that came with your system works very well to recondition NiCd's or NiMh's that have been resting for a month or two. Just charge for 16 hours to recondition the battery and then do a cycle or two to make sure they are perfoming adequately. Treat batteries that have been dormant a month or so just as you would a new battery; i.e. do a conditioning cycle or two.