RAM is proud to introduce the latest addition to the RAM product line, the RAM Safe-T-Charge vehicle battery protection system. The Safe-T-Charge can be configured to shut down connected devices by using a trigger from the ignition of the vehicle or by sensing a drop in the DC voltage. Offers an audible tone that starts five minutes before the timer shuts off power to your devices, and it continues every minute until the power is shut down. The onboard override switch enables the user to bypass the timed shut-off feature in an emergency or other event which requires immediate access to device power. Waterproof device is constructed of ABS, flame-retardant material. 30-amp rating. 24V jump-start protection. 3.74"L x 3.15"W x 1.26"H.