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> 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
>
>
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