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Subject:Re: UB12220 batteries update
From:Rocket J Squirrel
Date:Sat, 18 Sep 2010 11:10:38 -0700

What Mark said.

--
Rocky J Squirrel

On Sat, 2010-09-18 at 11:03 -0700, mark drillock wrote:
> Yes, I realized that you were doing this for various good reasons in
> your mind. My post was for the benefit of others who might be mislead
> into thinking that you had to have a relay rated as high or higher than
> your alternator amps and that is not the case.
>
> Mark
>
> Bob Stevens wrote:
> > Thanks Mark. My "plan" is to eventually add more trinkets to my van for
> > longer, extended stays in unimproved areas,
> > and since adding that 4 GA wire from the alt to the SP, that by itself
> > opens up the flow opportunity. Just doing
> > some advance "thinking" despite what others my think of as "overkill".
> > Anyone need a good, used SP1315?
> > bob
> >
> > On Sat, Sep 18, 2010 at 11:34 AM, mark drillock <mdrillock@cox.net
> > <mailto:mdrillock@cox.net>> wrote:
> >
> >     If all you have on the other side of the 1315 is your battery pack
> >     and the 100 amp unit is working fine, making it a 200 won't do
> >     anything. The batteries will only pull as many amps as they need and
> >     as much as the wires allow. Switching to the bigger 1315 won't make
> >     more amps flow, if that is the only change you make.
> >
> >     VW used a 40 amp battery relay with their 90 amp alternator. It is
> >     the wire gauge and length that determines the amp flow to the
> >     battery, other than the battery demand itself.
> >
> >     Mark
> >
> >
> >
> >