Size of solar maintainer for car battery?
Had a 2.4W panel for $30 or so, on my truck while in storage. Seemed to be adequate at latitude 27 with plenty of sun and almost no clouds. Flat on the roof. Didn't worry much because the battery was...
Forum Discussion
Battery should go beddie-bye holding a solid 13.2 volts. I'd prefer to see 12.75 at dawn configuring a formula with your estimated ambient temperature. The object is to nursemaid an afternoon/dusk slight surface charge to help feed the red-headed stepchild parasitic loads at night. Minimizes mini cycling, which takes it toll on battery lifespan. Don't be afraid to gain to 13.5 volts max during the peak "harvest". Even 14.0 is lower voltage than most alternator voltage regulator "cold" settings.
Yeah, this is baton-grade orchestrating. It is meant to minimize hard sulfating. Picky-picky? Yes. But this is coming from a hate-to-buy-batteries cheapskate.
Yeah, this is baton-grade orchestrating. It is meant to minimize hard sulfating. Picky-picky? Yes. But this is coming from a hate-to-buy-batteries cheapskate.
