Charger selection help please

hammick wrote:

pianotuna wrote:
Hi,

My guess is that running in AGM mode will do exactly nothing to speed charging--and in fact it may be the exact opposite.

How much solar do you have?

hammick wrote:
But I have some hope that running the AGM plus mode after a normal mode might hold it at higher volts long enough.

My thought on AGM plus 15.5v mode wasn't to speed charging. It was to get them fully charged after running the regular charge cycle. It looks like getting them fully charged every day is not what most people do because of long generator run time to accomplish this.

Not sure what I'll try at this point. I do have the built in Onan 4000w genset but I hate running it just for charging. It's loud and thirsty. But if a 75a charger is what I get I'll use the Onan rather than buying another Yamaha. Right now the Onan is reserved for Microwave use and the rare occasion that we need the AC. If I had to do it over I would skip the built in genset. Just too loud to use on a regular basis.

Your Yamaha might well be able to run the 75 amper, since some people can run theirs with Honda 2000 at sea level. But----see below.

You don't need to run the generator to run a microwave. You can run one of those with a 2000w inverter. You would want four batteries instead of two in order to keep the input voltage to the inverter above the 11v inverter alarm.

If you are interested in that for off-grid (you can run the microwave, toaster, whatever during quiet hours too, when the generator is not allowed), then you could also check out inverter/chargers since you are looking for a charger too.

Some of those inverter /chargers have programmable chargers, which is what you want, and they can be a decent size in amps. 2000w inverter with 100 amp charger EG.

So spending your money here :) you just bought an inverter/charger, a remote for it, and two more 6s. Plus some heavy wiring and a big fuse or two. Now you are all set to go off-grid sunshine or no sunshine.