when the pin on the electric brakes is pulled, the power from the brakes comes from the battery. This electrifies the brake pads to come on. It is never a good idea to have these pads electrified for very long. Even having a charger on your battery, over time the pad electronics will heat up and something will be prone to melt down. Your brakes may also 'stick on' when you have de-electrified them and may have to pull the wheel and drum off to get it worked on. Chock up your trailer in an other way.
2013 Forest River Salem Hemisphere SBT312QBUD
2001 CrewCab F-250 7.3 PowerStroke Diesel
SuperChip, BTS transmission, 6.0 Trans Cooler