"Eisboch" wrote in message
...

"Larry" wrote in message
...

WRONG....You have a few AGM boat batteries that are sulfated up and in
need
of REPLACEMENT, not charging. Charging isn't going to fix them....


According to several sites that I just read .... AGM batteries can indeed
be desulfated if they are not too far gone. Worth a try anyway.

Eisboch


Follow up to this: AGM batteries require the high freq pulse method of
desulfation.

Eisboch