My dad has had the 24V version of these battery desulphators in his
airplane for the past 10 years to keep the batteries in good shape -
and he has not had to replace them (despite the Cessna 310R sitting
for weeks at a time in the T-hangar).
>From Pulse Tech: http://www.batterystuff.com/solar-chargers/SP-5.html
I also have the BatteryMinder 12V charger/desulphator in my garage. I
have been very happy with it.
-Peter
On Mon, Oct 11, 2010 at 7:18 PM, Randall <TR3driver@ca.rr.com> wrote:
>> Here's the real deal... My '06 Chevy van will slowly
>> discharge a battery if let sit for a week or two.
>
> Seems like a lot of draw to me, to be balancing with a portable solar
panel.
>
> Lessee, if we assume you are losing 50 Ah over 10 days; that's about 200ma
> or 2.4 watts. As a rough rule of thumb, you need an array that will supply
> about 10 times that much (peak), so a 24 watt array should do.
>
> This looks like the ticket:
> http://www.batterystuff.com/solar-chargers/PF25W.html
>
> But, it's over $300 and unfolds to 41 by 32 so it's not going to fit will
on
> your dash (unless you have a really large dash).
>
> Of course a smaller array would still help, but eventually the battery
would
> run down.
>
> Randall
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