[jaykay]

If you happen to have a CTEK charger with a de-sulfation mode, it may bring it back. You can also try bring it in to a Odyssey distributor that has a diagnostic / testing capability. They can run a cycle on it to see if it will come back and also load test it to see where it is at after.

I have ruined a 925 by trickle charging it improperly. Thereafter I have used a CTEK on them all winter and also when the car sits in summer. I think the 925 is the smallest or lightest duty you want to put in a street car.

I had thought that one could let them run flat and let them sit, and then revive later