Breakaway System for 1 to 3 Axle Trailers w/Electric Brakes, Includes Battery Box, 5 Amp Battery w/Push to Test LED Test Meter and Breakaway Switch.  
 
* Push to Test: LED's indicate fully charged, charging or (needs) recharge
* Built in battery charger charges battery when plugged into the tow vehicle
* Activates trailer brakes upon separation of trailer and tow vehicle
* For use on 1, 2, or 3 axle trailers equipped with electric brakes