Re: Suggestions about powering your GOTO scope/laptop in the field
- From: "rick_245@xxxxxxxxx" <rick_245@xxxxxxxxx>
- Date: 6 Jun 2006 04:10:29 -0700
Yep. If ya don't mind the hassle of lugging the weight, the size 27
marine/deep cycle/RV batteries are wonderful. The size 24 works too,
but the 27 gives you more reserve. I use two: one for the scope, and
one for the laptop/observatory lighting. I get several nights out of
them. They're the same ones I bring camping, so it wasn't an added
expense.
Don't forget to calibrate motors each time you swap out a battery.
Unless I'm wrong, the calibration routine on the Meade scopes checks
the voltage level at that point. Rod would know; am I right on that,
Rod?
The battery for the laptop I run through a 300W inverter. Be careful
on those. You'll find two makes. One has a fan that runs at all
wattage use levels, the other doesn't come on until you're using at
least 100W. The second one is much more pleasant.
Those 2000W Honda gennys are also the cat's pajamas (boy, dated myself
with that one). However, unless you're willing to run 100-foot cords,
you'll still hear a very quiet background noise in the still of the
night. We lived in a trailer for the better part of year two years ago
while building a home on our property and adapted to the hum. It
definitely helps you to sleep, something I try not to do at the
eyepiece.
Richard in the west end of the Antelope Valley, California
.
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