#18664 Jul 21, 2007
I have an AP 600E GTO mount. My understanding is that the AP mounts
do not like it when the voltage of the DC power source, such as the
60 amp-hour deep-cycle battery that I have, drops below 12 volts.
Someone has suggested using a car power adapter for a laptop battery
that has adjustable output voltage because it provides constant voltage output.
The idea would be to use this adapter between the 12 volt deep-cycle
battery and the mount with the adapter set to output 15 or 18 volts.
I sometimes use the mount at remote locations where the temperature
can be below freezing on a winter night that can last 10 hours.
I would be running the mount, ST-4 autoguider and anti-dewers all
night long, so at the end of the night in the past with my Losmandy
mount, I know the voltage has dropped way down below 10 volts but the
mount kept working. I doubt that the AP mount will do the same.
So, is this a good idea to use this kind of adapter with the AP 600
mount under these circumstances?
I don't know anything about electricity. So, what happens if the
voltage is held constant under this kind of use... does the amperage
(is that current?) drop? Would this affect the mount?