This means that on that scenario the solar panel delivered 60 watts of power to charge the battery.
How much from solar panel to battery.
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.
Like solar you can think of the costs as both a gross price and a price per relative capacity.
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.
Assuming we get 5 hours of direct sunlight we know a 100 watt solar panel will produce 30 amp hours per day.
As we talked about above a 12v 100ah battery is 1200wh 12 100.
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.
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.
So to recharge them from 50 would take 17 hours with a 100w panel.
If you have two 100ah batteries wired in parallel you have 200ah capacity.
How much do solar batteries cost.
6 watt solar panel charging a 4 000mah 3 7v battery time 14 8wh 6 watts x 2 4 9 hours.
Solar batteries range from 5 000 to 7 000 and from 400 dollars per kilowatt hour kwh to 750 kwh.