PriorityStart! is a totally automatic heavy duty electro-mechanical computerized on/off switching device. Designed to protect a battery, keeping it from going dead, preventing damage to battery, alternator, and electrical system, at the same time providing peace of mind, and safety, while saving you time and money. If battery voltage drops below 11.7 volts (when engine is off), it AUTOMATICALLY disconnects the load, battery voltage immediately recovers, and No dead battery. AUTOMATICALLY reconnects with small load change (0.2mV) i.e. operate headlight switch, step on brake pedal, power seat, etc. No raising the hood (potentially dangerous), No remote to carry, No buttons to push. Totally automatic and pays for itself first time used. A dead battery costs you time and money, first time a battery goes dead you have damaged more than half the battery life.

Key Features:

AUTOMATICALLY DISCONNECTS; any drain on battery (when engine is off), even a short, leaving starting power, NO dead battery!
AUTOMATICALLY RECONNECTS; simply put foot on brake, or operate light switch, any small load change and start the vehicle. No button to push, or raising the hood
Do-it-yourself installation 3 easy steps - No hard wiring. Easy to attach: Connect your vehicle positive cable to PriorityStart! attach PriorityStart! cable to your positive post. Attach the ground wire to the batteries negative post – that's it!
20 years proven technology protecting vehicle battery alternators, electrical system, your family and your wallet, used by thousands of law enforcements, utilities and fleets, many using: 2way/CB radios, radar, GPS, Dual batteries, chargers, TV, monitors etc.

Patented technology disables the system when engine is running if battery voltage drops below disconnected threshold.

Mil-Standard (military strength) components
Vibration/Shock protected
Cost about the same as a new battery - Four issued U.S. patents
Universal design fits either top or side post batteries
Weight: 1.5 lbs

PriorityStart

PriorityStart! ProMax 12V Battery Protection System