Seems to me that in order to take care of the Volkslogger,
the ideal switch would be a 3-positionswitch: 1.
Battery A; 2. Battery A&B in parallel; 3. Battery B.
Switching rapidly from 1. through 2. to 3. would prevent
interruption in power without raising voltage or otherwise
causing damage, and position 2. could be used when
and if both batteries are somewhat low.

Does such a switch exist that provides such an overlap?


At 18:12 27 December 2006, Greg Arnold wrote:
Paul Remde wrote:
Hi,

I agree that it would be a nice product to offer.
Larry Goddard reads this
group, hopefully he'll come up with a good solid product
to offer. I'll
copy him on this note as well.

I must admit that I'm not sure I like the automatic
switching approach - I
guess I just like to be in control of which battery
is being used. The idea
of 2 battery switches and diodes to stop flow seems
OK to me, but I'm not
sure it is necessary. I have always used 1 single
3 position switch (Batt
1/Off/Batt 2). I have never had a problem making
a fast switch from battery
A to battery B. I wonder if there is a perceived
need for something that
really isn't necessary. But I'm not an expert on
batteries or diodes.

Good Soaring,

Paul Remde
Cumulus Soaring, Inc.
http://www.cumulus-soaring.com

I have the same setup as Paul, and it works fine.
However, I have a 302
-- when I had a Volkslogger, this setup would create
two separate IGC
files when you switched from one battery to the other.