So You Own An AGM Battery...
AGM batteries can sulfate just like any other lead acid battery. Other than by Ouija Board how would YOU determine if a battery has become sulfated and how severe is the sulfation, and if desulfation ...
Forum Discussion
dons2346 wrote:
" You can not equalize an AGM or gel battery."
Then why does the manual for my LifeLines say to do so if needed?
There is a newer version of the manual. They have dropped the term equalizing.
For AGMs, equalizing means to fully charge all cells. That is, all sulphate is back in solution. If one or more cells are not fully charged, it may show as a loss of capacity.
Without expensive measuring tools with high precision, charging AGMs can be an art without individual cell SG readings.
A big problem is that too many cheaper tools give a full charge reading based on FLA tables. IOW, the full light may come on at 12.6V which would only be 75% SOC for an AGM.
My Deka Manual says wrote:
Capacity tests should not be run unless the battery’s
operation is questionable.
This should impress on you that it is better to focus on learning to recharge AGMs with the right tools.
I did capacity test two years ago and skipped the test this year due to no observed loss of capacity as advised by Deka's manual.
All;
I posted my charging 'art' above in this thread. I would appreciate any critique to improve that procedure.
HTH;
John
