p (800) 780-8276 | f (509) 276-8505 | 12402 N Division St #200 Spokane, WA

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Technical Highlights

  • Only 3 Connections
  • Disconnects at 11.7 Volts (12-Volt model)
  • Disconnects at 23.5 Volts (24-Volt model)
  • Requires 0.2mV Load Change to Reconnect
  • Max Continuous Current Rating: 250 amps
  • Max Peak Starting Amps: 1000 amps
  • Certified to ISO, USCG and SAE Standards
  • Designed for Class 1 - 6 Vehicles
  • Size of unit: 5"L X 3"W X 1.25"D -- 1.5 lbs
  • Positive Cable is 6 Gauge

Included Attachment Band

Made especially for PriorityStart! to exceed under hood temperatures. This attachment band is imperious to all under hood fluids, such as battery acid and petroleum products. It is made by a chemical firm that supplies their speciality products to chemically hazardous industries. The material derives from Ethylene Propylene Terpolymer.

Data Sheet with Specs



Thank you for considering the PriorityStart! for your application. The PriorityStart! has been in the fleet market over 14 years. We have 3 issued U.S. patents and patents offshore.

With only 3 connections, and installing in minutes, PriorityStart! works very simply: If the battery voltage drops below 11.7 volts for any reason, it will automatically disconnect the entire electrical load from the battery. This might occur when accidental drain has occurred (e.g. lights or any other accessory left on) or perhaps the vehicle has been sitting for several days in-between uses. Additionally, any aftermarket devices will also be automatically disconnected from the battery. When the load is disconnected the battery recovers to its previous level, leaving starting power.

PriorityStart! automatically reconnects, when the user simply draws a load of 0.2mV directly to the battery. The unit will read this "request" and allow power to be restored. The load may be provided by using specific accessories on your vehicle such as activating headlights or pressing brake pedal.

The PriorityStart! includes safety features and is also built for rugged conditions. It will not disconnect the battery when the engine is running (other products on the market do not have this patented feature), even though the battery voltage level drops below the factory-set safe threshold. Circuits within this product recognize an "engine running" condition by sensing electrical "noise" (30 mill volts) created by fuel injectors, fuel pump, fan motors, etc., and will not disconnect the vehicle battery. If a vehicle alternator or alternator belt fails, the "engine running" circuitry recognizes the condition and prevents disconnection at the 11.7-volt threshold, allowing the vehicle to continue on the reserve capacity of the battery. The PriorityStart! has been tested and certified to ISO, USCG and SAE standards; they are also shock and vibration protected (our system uses MIL Standard components - not commercial grade components as other products). The unit can handle up to 1000 Starting Amps; the continuous current rating is at 250 amps. One universal design fits top-post or side-terminal batteries. The system is currently being used by thousands of U.S. law enforcement departments, numerous utilities, telecommunication, municipalities, government agencies, and numerous large fleets.


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