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I'm trying to use a 235w 24v pv to power a cooler and charge the truck batteries while parked. Do I need anything in line between the alternator and the charge controller to isolate while the engine is running, or can I connect them directly? The truck is an F250 diesel with dual 12v batteries in parallel. the cooler draws about 7 amps at 12v.
The charge controller cannot connect to the alternator. PV connects to the input of the charge controller, and the output of the charge controller connects to the battery. Have a look at the user and installation manual before you do anything!
https://www.victronenergy.com/media/pg/Manual_SmartSolar_MPPT_75-10_up_to_100-20/en/index-en.html
The battery input is coming from the vehicle battery which is connected to the alternator. If i connect the battery to the battery connection on the MPPT will it damage the MPPT while the alternator is running?
