Quote:
Originally Posted by oldtamiyaphile
I used an MPPT charge controller to make the most of the available current. Problem is as soon as you start the engine, the voltage jumps to ~14v and the controller detects this as a full battery and shuts off the panel while driving.
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The controller would have also prevented overcharging & ruining the battery when parked.
But you could have switched your system to bypass the controller when the alternator was running - you would have lost the efficiency of MPPT, but avoided the problem of it detecting 14v and sitting on the sidelines.