How Much From Solar Panel To Battery

If you have two 100ah batteries wired in parallel you have 200ah capacity.

How much from solar panel to battery.

You can get the amount of energy it will provide the battery by multiplying 10 watts by 6 hours which will give you 60 wh. If our 100w solar panel generates 70w every hour it will take a little over 17 hours to generate 1200wh 1200wh 70w. Before you can determine if installing a solar battery makes sense you ll need to know the price. As we talked about above a 12v 100ah battery is 1200wh 12 100.

6 watt solar panel charging a 4 000mah 3 7v battery time 14 8wh 6 watts x 2 4 9 hours. Assuming we get 5 hours of direct sunlight we know a 100 watt solar panel will produce 30 amp hours per day. So if you have a solar panel that with a 10 watts power rating and it is exposed to sunlight for at least 6 hours. Panel power in watts battery capacity in watt hours x 2.

So to recharge them from 50 would take 17 hours with a 100w panel. This means that on that scenario the solar panel delivered 60 watts of power to charge the battery. For our experiment 5 hours of direct sunlight without clouds x 6 amps generated per hour 30 amp hours per day that the solar panels are generating to recharge our rv batteries. We perform better than this on our own panels and battery combinations on clear sky days but this is a more realistic estimate for less than perfect days.