How do you charge a trailer battery while driving?
I want to charge my trailer battery while I’m driving so that everything’s ready to go when I reach my destination. Can you charge a trailer battery while driving?
Reviewed by Shannon Martin, Licensed Insurance Agent.
To charge a trailer battery while driving, connect the battery to your towing vehicle’s alternator with a seven-pin travel plug. Alternatively, you can use a DC to DC charger.
If you don’t have a huge budget, the seven-pin plug should suffice, but the charging is slow at best. A DC to DC charger, which runs about $150 to $250, is the better option if you want to
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