Breakaway Systems are designed to activate trailer brakes upon separation of trailer from vehicle. The integrated multi-stage charger provides a fast recharge to maximize voltage and comes equipped with an easy to read Push To Test LEDs indicating if its fully charged, charging or needs recharge. The weather/corrosion resistant, heavy-duty polymer case protects the battery and charger. For use on 1, 2, or 3 axle trailers equipped with electric brakes. Installation is quick and easy.