Quote:
Originally Posted by MazdaMatt
What are the technical details of charging a set of batteries with an engine that you are currently USING to drive an e. motor? I would think that the controller would not be very happy with the power supply.
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I know someone who did this (gas generator in the back of his pickup conversion).
I don't think the controller cares - it won't even "see" the charger - it just sees battery voltage, and as long as the max voltage at rest (eg: no load on the batteries, generator charging full tilt) is below the controller high cut-off specs, it'll be OK.
The charger is more likely to be a problem: the battery voltage while driving is going to be low, so the charger will be perpetually in bulk mode, drawing max amps and putting a high load on the generator.
I do believe the guy had trouble with his charger tripping the generator breaker if he accelerated briskly and sucked amps, pulling the pack voltage down. Could have just been a case of the charger not well matched to the generator though.