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The Goal Zero 20A Charge Controller is a solar charge controller for managing power from solar panels into a 12V battery bank. It handles up to 20 amps and accepts panel input up to 22V, outputting up to 25V, so it suits small to mid-size off-grid solar setups. It is a plain PWM-style controller rather than an MPPT unit, so it is simpler and cheaper than MPPT rivals but less efficient at harvesting power in low light or mismatched panel voltages. It suits cabin, shed and van solar systems where a basic, set-and-forget controller is enough.
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Lowest price we've seen: $99.95 on Nov 9 at Best Buy. Tracked across 1 store since Nov 9.
