batteries in place of generator

[Don Bradner]

Remember that you are calling on that 300 amps to do a lot more than run the
A/C. Most specifically besides normal running amp draw, you are needing a lot of
its output to charge those batteries. A dozen big batteries discharged 50% would
be happy to draw 600 amps for many hours if they could - at lower charge rates
they will take a long run down the road to get back up!

That is actually one of the bigger limitations that I have when dry-camping - I
have a ProSine 2000, which can charge 105 amps, and the 6 6-volt AGMs need 330
amp-hours to charge when discharged 50%. They could take 300 amps of input if I
had the charging capacity and heavy-enough cables.

Don Bradner
90 PT40 "Blue Thunder"
Eureka, CA

On 12/18/2007 at 3:37 PM Dorn Hetzel wrote:

>and 3600 watts = 30 amps at 120v. I've never worried about running an AC
>on
>a 30amp shore hookup.
>
>I'm pretty sure the book says the AC units pull about 12 or 13 amps
>running. If they need some surge to start I would think the big inverter
>and the bank of 8 to 12 batteries could handle it?