In article ,
says...
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


I had the 135-135A upgrade done on my unit a few years ago, at the King
factory. They charged something like $500 for it. You gain the
capability to display some additonal pages of information, but for me,
the real biggie was the display. Apparently, the KLX-135A display is
what King wanted to use in the first place, but it wasn't ready when the
KLX-135 shipped. The new display is much more readable in daylight for
me. They also tweaked the adjustments of the COMM and GPS so it seemed
to work better.

Is it worth it? I thought so. Of course, the whole thing is priced in
those itty-bitty "aviation dollars" that take large piles to add up to
enough money to get anything done.

YMMV,
Henry Bibb