Really? $79? I spent more than that building one. That sounds like a bargain. Would you consider making any Direct Drive, so 3D or 3C NiMh cells could drive it to 5A, and use PWM to get the two lower levels? If that runs it too hard on cells fresh off the charger, maybe a resistor to keep it <5A? Keeping an eye on this thread!
Great ideas Mac!



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