by bartonmd » Wed Oct 05, 2011 7:44 am
If it's not good enough to start a vehicle, it's not good enough to depend on for much...
Having said that, I put the "not quite good enough to crank over my Cummins after running the grid heaters at 10F" group-31 battery in the back of my truck and charged it every once in a while, and used it to run an ATV winch to pull cars up on a trailer, as well as running my MV50 air pump to pump trailer tires up and stuff...
Mike