Priority Start! stops dead batteries automatically before damage occurs. Constantly monitors voltage. Senses any voltage drain and automatically disconnects the drain. Then automatically reconnects when you step on brake pedal or operate the light switch. Computer "chip" technology. Universal design fits any 12 or 24-volt application. A dead battery costs you money, time, and exposure to dangerous situations. First time you have a "dead" battery you've lost up to 1/2 of its starting life and done irreparable damage. Using portable battery starters, dangerous jumper cables, or questionable cigarette lighter devices means you have already had a "dead battery" and permanently damaged your battery, potentially damaging the vehicle computer and electrical system. No waiting for emergency trucks, or calls for help. Stay safely inside your vehicle. No lifting hood or attaching dangerous jumper cables. No buttons or switches to push. Pays for itself 1st time it saves you, ready to protect every time you need it. Protecting the battery is key to your security! Since Priority Start! automatically reconnects the battery in most vehicles when a door is opened, the security system, or lift gate is immediately restored. No hard wiring or modifications. Transferable. UL tested.  Certified to SAE J1171, ISO 8846, CE, USCG Certified,  and E-marking. Maintenance free. Always on Duty - Always Remembers - Providing you Safety and Peace of Mind. Vehicle Applications: Priority Start! works with 12 or 24-volt top-post or side-post storage batteries. Perfect for: Cars Mobility Vehicles Recreational Vehicles Light Trucks Van Conversions Fleet Vehicles Construction Vehicles Motor Homes Off Road Vehicles Fork Lifts Farm Vehicles Industrial Vehicles Priority Start! is also available in Marine, ProMax [Fleet model], Mobility and 24-volt configurations. Easy to Attach: Priority Start! attaches easily to any 12-volt top-post or side-post vehicle battery. No modifications are necessary. Three easy connections. 1. Vehicle positive cable to Priority Start! 2. Priority Start! cable to battery positive post 3. Attach ground wire to battery negative post NO HARD WIRING REQUIRED ONE UNIVERSAL DESIGN FITS TOP-POST OR SIDE-POST BATTERIES Priority Start! Benefits Automatic Battery Reconnect - Convenient, Safe Easy to attach - 3 Connections Maximizes Battery Life - Maintenance Free Handles up to 1,000 Starting Amps Designed for Under-Hood Environment Engine Run & Hazard Light Protection Transferable from Vehicle to Vehicle Universal Design Fits Both Top-Post or Side-Post Batteries Ability to Use Accessories When Engine is Off Ecologically Friendly Reduces Number of Batteries Discarded into the Environment Cost Savings Pays for itself the first time you use it, ready to protect every time you need it Prevents lost wages and vehicle downtime Saves cost of new battery Protects expensive vehicle electrical parts Protects from voltage spikes or surges Remember, Priority Start! can be used on your existing battery or a new battery Quality Product Meets automotive specifications Assembled with materials suited for under-hood environment 12 Month Warranty When engine or hazard lights are operating patented circuitry prevents battery power from being switched off Automatic Battery Protection When You Need It!