On Sat, 17 Nov 2007 07:13:38 -0800 (PST), "
wrote:

It is my understanding that a battery needs "exercised". Long periods
of non-usage (over the fall/winter/spring months) will result in the
battery loosing its charge and not be able to accept a charge.

With that said, is it possible that if I wired my battery (in
parallel) to my Ford truck battery, will it be "exercised" and be
ready for another full year of boating, or will it damage the PWC
battery?

I'm trying to avoid the cost of trading in the old battery and
purchasing a new battery each summer.

First, I would suggest that something is wrong with the charging
system in the PWC if you are having to replace batteries every year.

Secondly, wiring it to the truck in parallel wouldn't be a good idea
for a variety of reasons including over charge, unequal charge, etc.

Third, get a "floating" charger rather than a constant "trickle"
charger. The floating charger will turn itself on and off as the
battery requires over winter. You don't really need to remove it from
the PWC - just unconnect it from the PWC (leave it in), hook the
charger to it and plug it in. Unless, of course, that isn't
convenient - in that case just remove it, put it somewhere you can
plug in the charger and let it sit over winter.

I use three floater units on my Ranger over winter and haven't had a
failure yet.

Unless you count the time I left the key and radio on, but that was
Scott's fault. :)