Nubo
Well-known member
gncndad said:nlspace said:Here's a page from a Yuasa battery guide that explains about when the sulfation occurs. The guide is geared toward smaller batteries such as motorcycles and ATV, but the guide information applies to all lead acid and can be downloaded.
https://www.manualslib.com/manual/4...matic-12v-1-5-Amp-5-Stage.html?page=15#manual
An interesting paragraph from the guide, emphasis mine:
"There's a simple rule of thumb about batteries, and if you're a dealer or a mechanic, you know that people ignore it all the time: for a battery to operate the way it's supposed to, it has to be fully charged before it's used...and kept fully charged throughout its life."
That is the secret to getting extended life out of the aux battery.
I think this requires some clarification. I'm going to modify this (bold) statement. "...kept in a properly operating charge/discharge environment..." On ICE engines, the voltage regulator doesn't ever charge the 12V to capacity, usually stopping at 80-90%, to avoid overchargin. . I assume the same for hybrids/electrics. IIRC, 12V, like our HV batteries, function best between 20-80%. Constant charge/discharge outside of this range isn't healthy.
Hopefully someone more expert will chime in and correct me if I'm wrong.
(I'm really NOT shouting, for some reason, I can't un-bold my post!!!)
Fixed.