Sizing generator to charge batteries

Pianotuna and I agree....solar. Yes I carry a Westinghouse 2200/1800 inverter generator as backup for the TT and at home but in over a year have not needed it. And don't worry...the sun will come out tomorrow...tomorrow.

have to agree with Grit, get a 2000 and then you will also have it for power outages or other needs.

Hi,

Why does the sun not shine?

It is an overcast day and the solar system is pumping 8 amps into the battery bank.

1. You do not want to charge the batteries TOO fast. It will boil all the water out. That is why I do not connect my generator 12 volt output directly to the batteries. I connect the 110 Volt output to my RV and let the RV charge the battery.

2. The "charger" (DC power Converter) in the RV should limit the charge rate. If it is an expensive one it is programed to adjust the charge rate so the batteries do not charge too fast.

3. My 750 watt small generator will recharge my batteries in about 2 hours (a tank of gas) it I run it every day I am off the grid.

A 1kw generator will take care of pretty much any battery charging duties, but bang for the buck just get a 2kw. Then you can use it for most anything short of running air conditioners.