Ok. Thanks for the reply.. How long should i leave it on with 2 amps? A full 24 hours? Or more? And then test it after a couple hours off the charger?A slow 2 amp charge is what you need to do to it.Although there wasn't any current being pulled the IR of the battery slow discharged it.Most anything that has been on a shelf more then 6-8 months without a charge is going to have a diminished battery life.It may come back,but ike Hoss said don't trust it to get you out of a jam.
Agm doesn't have acid but it still has aWhat do you mean by boil? the battery tender gettin hot, or the battery getting hot? I didn't think AGM batteres had acid..