Can you charge a battery from your trailer plug?
Can you charge a battery from your trailer plug? Expert Reply: You would not be able to charge your battery through the wiring on your 4-way trailer connector. Since your truck has a 7-way connector, you could maintain the power to the battery but not charge it. How does trailer battery get charged? How Do Camper Batteries Get Charged? A camper's battery usually charges through the use of a converter which takes AC power and converts this power to DC power. Alternatively, a camper's battery could be charged directly through the tow vehicle's alternator, solar power, or even wind power....