To charge a 12V battery with a 100 amp hour capacity in about five hours, you need a solar panel that produces at least 240 watts (20 amps x 12 volts).
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For a 25 watt solar panel, you'd need a 12v 30Ah lead-acid or 12v 20Ah lithium-ion battery.
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A solar pump inverter lets you use solar power for water pumps. This technology gives steady water in places without a power grid.
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Installing a solar surface pump is easy and quick, usually done over a weekend with a helper—set panels, drop pump, wire, and start pumping water.
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