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25% Off Online Orders of Select Parts and Accessories. Enter Promo Code FOUND25 in Cart

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25% Off All Online Orders of Select Parts and Accessories
Receive 25% Off Your Online Purchase. Use promotional code FOUND25 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 2/27/17. Online orders scheduled for in-store pick up must be completed by closing on 2/26/17 for discount to apply.

Free Shipping on Orders Over $50 or in-store pickup

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  • Part #: 20304|
  • SKU: 1148909

5 days after 6 p.m.

    • Easy To Install and Simple To Use
    • Disconnects Batteries Quickly and Easily
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 100 Amp Master Battery Disconnect Switch

The Battery Doctor Master Disconnect Switch is designed to be installed on the negative (-) battery lead to prevent the battery from draining to unsafe levels. The master disconnect switch can also be used to prevent theft, tampering and unauthorized use of vehicles while not being used. Rated at 100 amps continuous at 12 volts. Easy-to-install and water resistant.
  • Easy To Install and Simple To Use
  • Disconnects Batteries Quickly and Easily
  • Stop Unwanted Battery Drain
  • Help Prevent Theft, Tampering and Unauthorized Use
  • Improve Safety and Security of Stored Vehicles, RVs and Seasonal Equipment
  • Rated 100 Amps Continuous at 12 Volts