MEXICOWANDERER wrote:
A few months ago I posted a note about recovering a 11 year old neglected Lifeline AGM. To make a short story shorter, I ended up leaving the battery connected at 15.5 volts for two weeks.
No it didn't heat up
It did not lose 1 gram of weight
But yes, it finished holding 13.3 volts @ 55° for a week afterwards.
Neglected? Yes. Disconnected for 3 years
Was the capacity affected at all? I have revived car batteries before that were DOA some worked with a lower capacity, most didn't... I know that agm can handle a bit more punishment than regular ones, but not a lot more