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Can MPPT charge controller be used without a battery?

Will the MPPT 100/20-48V charge controller function without a battery connected? In other words, if I connect a PV panel input and a purely resistive load output (e.g., a submersible heating element) to the load output, but no battery, and there is ample irradiance, will the MPPT tracking algorithm still function to deliver maximum output power to the load?

MPPT Controllers
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Mike Dorsett answered ·

Not recommended. The battery is needed so as the MPPT can auto sense the voltage setting, and can absorb the charge current from the PV system and to supply current to the load if the pv power is insufficient. A purely resistive load would have such terrible voltage regulation that the MPPT would likely fail.

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