Hello Bi,
You are correct that a boost module does switch on and off. But there is a big difference between it and the modified Matt motor. The boost module switches internally at a rate in the kilohertz range. The Matt motor switches in the hertz range. Also the boost module has a cap on the output to smooth the on and off pulses. And the boost module is supplying power to the motor not to the battery. There have been many studies that show that lead acid batteries charge best when hit with strong pulses in the hertz range. I recently bought a commercial battery charger that charges with pulses.
I have not tried the circuit you posted. But I have spent many hours working with the original 3 battery system and some time with the 2 battery system. Using a pulse motor modified like Matt has shown will greatly increase your chances for success.
Respectfully,
Carroll
You are correct that a boost module does switch on and off. But there is a big difference between it and the modified Matt motor. The boost module switches internally at a rate in the kilohertz range. The Matt motor switches in the hertz range. Also the boost module has a cap on the output to smooth the on and off pulses. And the boost module is supplying power to the motor not to the battery. There have been many studies that show that lead acid batteries charge best when hit with strong pulses in the hertz range. I recently bought a commercial battery charger that charges with pulses.
I have not tried the circuit you posted. But I have spent many hours working with the original 3 battery system and some time with the 2 battery system. Using a pulse motor modified like Matt has shown will greatly increase your chances for success.
Respectfully,
Carroll
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