12 v to 12 v trickle charger

DrewE wrote:

Mobilesport wrote:

pianotuna wrote:
Any suggestions?

Looking to keep a 10 amp-hour AGM charged while running the Pinella Remote. I think a trik-l-start is on the large side.

What about briefly charging from the alternator?
I believe that's how most RV generators batteries are wired.

My RV generator just uses the house battery for its starting battery, and relies on the converter to recharge it (from the generated AC power) when it's running. There's no dedicated battery charging circuit in the generator at all, nor indeed a dedicated generator battery. I think that's quite a common setup, though I gather sometimes the generator is wired to use the chassis battery rather than the house battery on some motorhomes. It's also worth noting that most built-in RV generators need 12V power not just for starting but also to power the field of the generator so it will generate power; they just plain don't operate at all without 12V power.

I do have a battery combiner circuit so that the house battery is connected to and recharged by the main engine alternator when driving my motorhome, which is also standard; that is entirely separate from the generator.