won't work when charging a propex heater battery. maximum voltage 13.5 volts DC. You must reset the heater after removing the charger. The ripple blew off the solar array covers in less than an hour with battery acid spilled everywhere. Solar battery 42 amps. The pulsing creates many bubbles, causing the acid to overflow. As mentioned, Ripple does not work with all batteries. I learned it the hard way.
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