Whoops. Right you are.� Wire your 12 volt SLAs in PARALLEL!� Apologies.

tabe

--- On Tue, 1/10/12, Angus Gordon <birdworks@gmail.com> wrote:

From: Angus Gordon <birdworks@gmail.com>
Subject: Re: Small UPS SLA batteries...deep cycle substitute?
To: greentabe-vanagon@yahoo.com
Cc: vanagon@gerry.vanagon.com
Received: Tuesday, January 10, 2012, 8:36 PM

Joining them in series will not be fine at all...unless you have some 48V lights...
Angus

www.wordless.me

On Tue, Jan 10, 2012 at 8:18 PM, Tabe Johnson <greentabe-vanagon@yahoo.com> wrote:

Joining a bunch of SLAs (Sealed Lead Acid) batteries together in SERIES will work just fine -- I would suggest best for lower/intermittent current draws like lights, furnace fan, stereo, etc. �I would avoid using for 12V heater on stock Westy fridge because of the current draw, for example. �This setup has the advantage the you can customize the space and capacity of your house battery bank, but you will have to do some wiring. �(Make sure you are certain you're wiring things up right or there will be smoke!)

I did something similar with a previous westy - I found a 12V deep cycle SLA, around 35 a-h as I recall, normally used in electric wheelchairs that fit very nicely in <1/2 the space under the driver's seat. �Worked well for my modest needs and I wasn't stressed about discharging the starting battery.

tabe johnson/90MV