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
westend wrote:
I'd have to break down the 8 battery bank into a more usable configuration. In fact, if pulling them all to do at home, each would be treated individually.
Since we can't measure with a hydrometer, measuring volts and current would be our tool.
Most AGM mfg's have a equalization or capacity recovery voltage listed for this purpose. I know mine is 15v. I would first charge the battery as usual and have an observable baseline voltage at full charge. I would discharge the battery with a purely resistive load like a heater, dummy load, or light. I would observe the time it took to reach a low voltage setpoint, that might be 12.0v. I would then charge the battery as per usual until full and then charge using the capacity recovery voltage. The battery would be drawn down again, to the low voltage setpoint and time observed. If the equalization/capacity recovery was successful it should take longer to reach that setpoint.
A SOLID "A"
Passing grade, Mex? I'm sure there is a better way but that's what I come up with.
