1. The 12v battery will only be turning a small 12v motor that will be turning very slowly yet possibly or a long time.
2. 1-2 hours max per day it will be running
3. I want it to be fully sufficient on solar power once the energy in the battery runs out.
What specifications for my panel do you think I will need. However, i have limited space so the smaller the better as long as it can do the job
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{ 1 comment… read it below or add one }
You will want a 12v Battery, sealed lead type is probably best but as for size you need to work out how many amps you will need, you could also put them in a bank for more amps,
look at how many amps the motor is, lets say its 2 amps and you will want it to run for 2 hours that’s 4 amps required, plus any loss in the circuit and reserve, if its mission critical how many days in reserve should it have,
But also you need to look at the solar panel, how many amps is this putting out in sun, per hour, and how many cloudless days do you get.
You can get the sealed lead batteries at batteryTrader.com http://www.batterytrader.com/sealed-lead-acid-c-305.html