remote internet bridge

1 Posts

Nov 1, 2000 08:23 pm

help, help, help. I can not for the life of me figure out what size battery, and solar cell i need.
I have a wireless newtwork bridge that draws 18dcv @1amp.It must run 24hrs a day and might need 2-3 days of backup, and the smaller the unit the better. If i can get the size down I could use a couple dozen. I'm really not interested in wind power. The location is marrianna, fl.

Thank you

Tom

39 Posts

Apr 25, 2002 12:31 pm

Re: remote internet bridge

Nick, first you will have to use some 6 volt batteries. The most common is what is called a golf cart battery and can be found most anywhere. You would put 3 of these in series to get your 18 volts. Then if you want 3 days storage:

18 volts x 1amp = 18watts
x 24 hrs x 3 = 1296 watt hrs
/ 18 volts = 72 amp hrs or 24 amp hrs/day

So you would have to get batteries with a rating of 80-100 amp hrs. Two 50W panels, at 18 volts, getting 10 hrs of sun a day, will get you
27 amp hrs/day.

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