Ensure the safety of your vehicle's electronics with the Havis Chargeguard! This self-contained unit not only provides circuit protection for your vehicle's power system to prevent dead batteries and protect mobile electronics from voltage anomalies, but it also offers the convenience of turning peripherals on precisely when needed and off when they're not, conserving battery life and reducing wear and tear. Boasting a proven track record with over 250,000 units installed, Chargeguard features a simple setup for easy installation, a convenient override/test button for emergencies and testing, and compatibility with various applications in multiple modes, all aimed at minimizing maintenance and service calls while maximizing efficiency and reliability. Keep your mobile devices charged, protected, and your battery's lifespan extended with Chargeguard!