Quote:
Originally Posted by elp_jc
I'm probably going to remove it one of these days and check electrolyte level (yes, AGM is still considered a 'wet' battery  ). The good news is in the trunk, they never get hot, so if level is correct, it should never get low, like under the hood. Take care. |
"Nearly all AGM batteries are "recombinant" - what that means is that the Oxygen and Hydrogen recombine INSIDE the battery. These use gas phase transfer of oxygen to the negative plates to recombine them back into water while charging and prevent the loss of water through electrolysis. The recombining is typically 99+% efficient, so almost no water is lost.