I beg to differ, AGM are VRLA (stands for valve-regulated lead-acid) and is the designation for low-maintenance lead-acid rechargeable batteries.
These batteries recirculate the hydrogen gas, but they always include a safety pressure relief valve. As opposed to vented (also called flooded) batteries, a VRLA cannot spill its elecrolyte if it is inverted.
Quote:
Originally Posted by Lancia
Gassing issues are the same as with any open wet cell battery.
Very high end batteries can use devices to capture these gasses.
Some can add them on, common in solar.
I don't recall optima coming with them.
|