He has a point. Most chargers, even trickle chargers (charging @2A), will overcharge a battery if left connected for that long. This overcharging will cause the battery to fail prematurely. There may be a charger out there that is made for that sort of long-term charging. However, simply letting the battery run down over that period of time is no better.
What type of battery charger are you using (include Brand and model number, please).
Sunday, August 17th, 2014 AT 11:01 AM