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30% Off Online Orders of Select Parts and Accessories. Enter Promo Code PEP30 in Cart

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30% Off Online Orders of Select Parts and Accessories
Receive 30% Off Your Online Purchase. Use promotional code PEP30 at checkout to receive discount. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Powerstop Brake Kits, Oil, Antifreeze, Refrigerant, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Thule, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 10/27/16. Online orders scheduled for in-store pick up must be completed by closing on 10/26/16 for discount to apply.

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  • Part #: 20393|
  • SKU: 1148916

4 days after 6 p.m.

    • For Use on 1 or 2 Batteries
    • For Applications Up to 48 Volts
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

WirthCo Engineering Battery Doctor Mini Master Battery Disconnect Switch

The Battery Doctor Mini Master Disconnect Switch is designed to be installed on the negative (-) battery lead to prevent the battery from draining to unsafe levels and to switch between multiple batteries. The master disconnect switch can also be used to prevent theft, tampering and unauthorized use of vehicles while not being used. The Mini Master Switch is rated at 300 amps at 12 volts continuous and 1000 amps for 5 seconds at 12 volts.
  • For Use on 1 or 2 Batteries
  • For Applications Up to 48 Volts
  • Easy To Install and Simple To Use
  • Disconnects Batteries Quickly and Easily
  • Stop Unwanted Battery Drain
  • Front Label Glows in the Dark
  • ISO #8846 Marine Approved