Replacement Trailer Breakaway Battery for Electric or EOH BrakesThis replacement battery is great to keep on hand in your camper or RV during long trips just in case you experience a low battery in your trailer's Battery Brake Away Kit and don't have a way to recharge it. This Replacement Safety Breakaway battery would also be great to use as a replacement for a dead or otherwise unusable battery. Any trailer powered by electric brakes (Full electric or electric over hydraulic) needs to have a Backup Battery so