monkey44 wrote:
"According to the techies at Power Dynamics, a 25-percent charged battery will take approximately 35-hours to reach "full" charge!"
I' cant argue with techies, I don't know enough. But this statement makes NO sense. Most of the TT, 5'ers run generators for a couple hours in the AM at most, and they certainly have more that one Gr29 ... and do it day after day.
I think people are trying too hard to "help" you here. While charging to "full" may actually take 35 hours that's only because the last imcremental charge takes infinitely longer than the first. When people charge a little each day all that matters is that they replace the charge they used. So if you deplete your battery down to 80% one day but only bring it back up to 90%, my question is so what? The next day it may drop to 75% but recharge back to 90% in short order.
This is one of those cases where trial and error probably works out better than calculations since it totally depends upon your usage.
If you can put 30-40 amp-hours back in with an hour or two of run time that may be just fine for days on end.
You don't need to spend anything to test. The generator will charge at the same rate as 120V hookups--the rate your onboard charger provides. Try it out at home by running the battery down and the only plugging in for an hour or so each "day".