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Old 15-07-2009, 05:49   #16
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You might get back 10 amp/hours per day from the panel. That's a fairly optimistic amount! So since you are using 55 amp/hours per day, and generating 10 amp/hours per day, your net is you are removing 45 amp/hours per day. Since you have about 60 amp/hours available, that means you'll probably start over draining sometime in the second night. So, I'd still only count on 1 day.

Now, of course you can reduce your loads. Say, turn off the GPS and VHF when you're at anchor. Maybe only run the stereo for 4 hours a day. Then you're starting to be in the 2 day range. As you may see, not using amps is a WHOLE lot less expensive than trying to replace/generate them.

Good luck.

Keith
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Old 16-07-2009, 04:56   #17
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I think I may add a second group 29....any issues with that? I guess I'd hook up red/red - neg/neg to maintain my 12 volt system...correct? I think that along with a 2nd and possibly 3rd 20watt solar panel would give me the juice to be out for a long weekend without shore power. Thoughts?
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