solar panel hooked directly to battery
I've heard of some folks hooking a small solar panel directly to the battery to charge or maintain it. But some panels (my 70W, for instance) can peak its output as high as 17V. My question is, how ...
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Plays out same as any 17v charger on a 12v battery. Voltage will steadily rise to 17 volts. Your panel is maybe 4 amps so the effect will be slow. So slow you may never get above 13 volts while in use. Monitor the voltage rise closely the first few times. Best to have a controller in storage.
Unless it has a diode, best to disconnect as the sun drops.
Unless it has a diode, best to disconnect as the sun drops.
