PriorityStart! 12v ProMax HD Low Voltage Disconnect Switch - PSI-12V-PROMAXHD

PriorityStart! is the only automatic computerized on/off protection system for your battery, alternator, and electrical system in the market today. If battery voltage drains below 11.7 volts when engine is off, it automatically DISCONNECTS the load, leaving starting power. The 12v PROMAX HD is recommended for Law Enforcement, Work trucks, Heavy Duty vehicles, and any vehicles with increased electrical/load demands.

To RECONNECT and START: simply step on the brake pedal, activateheadlights, or operate any other accessory, and starting power is RECONNECTED! No buttons to push, no switches to flip, and there is no hardwiring. It's positive to positive, with a ground wire, and you're done.

Universal design fits top and side post batteries. No hardwiring or modifications required. Transferable. Manufactured to ISO, USCG, and SAE standards.

Extra Benefits over the Standard 12v ProMax Unit:

• Heavier Load Capacity: Up to 1600 starting amps/400 continuous amps
  • 60% increase to contact disc
  • 60% increase to spine gear & holding nut
  • 40% increase to jack screw
  • 40% increase to busses
• Heavier ground wire connector thicker/stronger for heavier duty vehicles
• Top post contact material raised/increased to improve GM connections
• Gear cover for added strength & durability
• Motor cover for added strength & durability
• Higher intensity LED on top, improved visibility
• Redesigned circuit board

• Automatic battery reconnect: Convenient, safe
• Easy to attach: 3 connections
• Maximizes battery life: Maintenance free
• Handles 1,600 starting amps/400 continuous amps
• Designed for under-hood temperature extremes
• Engine run protection

• Transferable from Vehicle to Vehicle
• Universal design fits both top & side-post batteries
• Ability to use accessories when engine is off
• Engine Run & Hazard Light Protection
• Universal Design Fits Both Top-Post or Side-Post Batteries