You did not mention what will be your discharge cycle of the battery. You are asking only for charging energy from Solar Cells. If this then kak111 gave you the best calculation guide.I have a deep cycle golf cart battery -> 6v 235A
How do I compute/determine the solar panel needed to charge this battery? thanks.
Battery load is sum of all loads.what if the loads differ?
For charging phone you need voltage regulator from battery voltage to phone voltage.when we charge a phone we need a charger