Valve Regulated Lead-Acid (VRLA) batteries are not prefect. They
recombine a large percentage of the gas, but they still vent.
You can hear the valves faintly "click" to release gas when the
batteries are nearly fully charged or on float charge.
Bill D.
On 6/14/2016 6:04 AM, EVDL Administrator via EV wrote:
On 13 Jun 2016 at 20:38, Lee Hart via EV wrote:
The gas either goes out the vent (flooded battery), or slowly
pressurizes the inside of the case (AGM or gel) until the pressure
relief vents release it. Either way, you're losing water.
I thought that most good valve regulated batteries had recombination
catalysts inside the cells, to recombing evolved hydrogen and oxygen into
water. No?
David Roden - Akron, Ohio, USA
EVDL Administrator
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