On Fri, 27 May 2005 12:17:52 +0000 (UTC),
wrote:

Hey all... I've got a KLX-135 GPS/COM that recently developed an identity
crisis. Apparently there's an internal lithium battery that dies after 3-5 years and
causes it to forget all of its waypoints and internal GPS almanac. Anyone ever
replaced or had one replaced?

Also, I just recently became aware that it's possible to upgrade a KLX-135 to
a KLX-135A. Anyone know what's involved, how much it costs, and whether or not it's
worth it? I'm an avid DIY-er, but I suspect that nobody will sell me the
parts/manuals I'd need to do it.

Thanks,
-Cory


Our local CAP squadron has a 172P upgraded to a 180 horse. It has the
whole suite of avionics - pretty much everything you can get. The GPS
is a King 89 or 90, I don't remember which. The internal battery went
down in it and the only thing we could do was send it back to King for
a replacement.

We tried and tried to find the battery aftermarket, but it appears to
be VERY proprietary. Everyone we contacted claimed they didn't have
it. Of course, it could be they just wouldn't sell it to anyone but a
"authorized repair station" - but that's what we ran into.

In the end, we shipped the unit back to King who charged us over $500
JUST to replace a battery. Talk about a SCAM!!!


Chuck