batteries in place of generator

[Wilhelmus Schreurs]

Don:
You are very correct there. I have smaller batteries in my FC, and when driving
down the road, having heat on in the coach, fans running and using my electric
brake in these hills, it literally takes hours to charge up, and it is over at
100 to 120 amps.
Having even more batteries, well that would make things that much worse.

Bill 84 FC 35 SB "$quanderlodge"
Terrace, B.C. Canada


----- Original Message ----
From: Don Bradner
To: WanderlodgeForum@yahoogroups.com
Sent: Tuesday, December 18, 2007 1:25:52 PM
Subject: Re: [WanderlodgeForum] Re: batteries in place of generator













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?














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