[AZ-Observing] Recharging
- From: Stan Gorodenski <stanlep@xxxxxxxxxxxxx>
- To: Az-Observing <az-observing@xxxxxxxxxxxxx>
- Date: Sun, 15 Mar 2015 11:51:44 -0700
A few years ago I had asked a question of how long a 12V battery would
last to power a laptop on a night of observing. I have a related
question. The reason I ask it is because I know nothing about
electronics or electricity.
I need to be away from power for days at a time. I have a 5 watt solar
panel I bought years ago. If I run a laptop for about 3-4 hours a night
with an inverter, would this 5 watt solar panel be enough to charge a
car battery (not a battery in my pickup but a separate battery) with the
amount that was used by the laptop? I doubt it and probably need a
larger panel for this to work, but maybe it would have to be too large
to be practical.
Alternatively, I would be driving about 80 miles per day. Can one charge
a separate car battery plugged into a cigarette lighter?
Stan
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