Barbagris, I charged the battery fully yesterday morning, then disconnected the negative cable from battery. When I got home from work, I checked the volts and it had dropped from 14.50 volts to 13.20 volts. I connected the negative cable to battery, tried to start and it clattered, barely turned over and then went dead. I charged battery 1 minute on trickle 2amp, hit starter and it started right up. Temp was 25 deg F.