Trickle charging batteries outside in the winter? : r/batteries
NE Ohio, so temps can be from 0 - 90+ degrees year ''round. The battery is usually half-dead come Spring so I push it close to my house where there is an outlet and hook up a battery tender for a day. That usually rejuvenates it. I know this isn''t healthy for the battery though, so I just bought a solar battery trickle charger to use out in my shed.