"Kyle Boatright" wrote in message . ..

"Morgans" wrote in message ...

"Morgans" wrote

It could be that it is not putting out enough voltage/amps while it is under load.

To further expound on that point, you need to know what the power draw is demanded by the unit. Take a thin piece of
cardboard, and put a wire on one side to contact the positive battery contact, and run it to an amp/ohm/volt meter,
then back to the contact of the GPS unit, to be able to read the amps (or milliamps) actually drawn from the
batteries.

Of course, the output of the ships power adapter must be equal to or greater than the draw of the GPS. I really
think you will find your problem, there.
--
Jim in NC

Interestingly, someone sent me a private e-mail indicating that he had the same problem with his Lowrance Airmap 100.
He resolved the problem by trading up to a newer unit. ;-)

Reading through the Airmap's manual, it is supposed to switch to the ship's power if the voltage from the ship exceeds
the voltage of the 4 AA's, which is roughly 6 or 6.5V. There shouldn't be a problem with the power from the airplane.
Its voltage is ~14, and the circuit is fused for 10A and wired for 15-20A. I've checked the voltage it on several
occasions.

My guess is that there is a problem with the internal switch on the Airmap, and that I can't solve it on my end.

I guess I'll just have to keep feeding the thing AA's.

KB



My power cord for the Lowrance 2000c has a little green LED in the part that plugs in to the cigarette lighter plug it
that lights up when it is powered up...