Home » Electrical » Dual Battery Isolator

Dual Battery Isolator

Use a Battery Isolator to manage the power distribution between your vehicle’s battery and auxiliary battery s.



Page 1 of 2: 1 2 Next »
    • Painless Wiring Digital Power Manager

      • Universal design
      • Dual battery applications
      • Automatically engages auxiliary battery when load is large
      • Will not allow loads on main start battery when power is low
      • Makes the correct decisions for you and your dual battery power and charging needs
    • Painless Wiring Digital Power Manager w/Jump Start (500 amp)

      • Weather proof
      • Can withstand underhood temperatures away with the exception of exhaust heat.
      • Completely automatic charging and automatic battery combining up to 250 amps
      • Optional indicator light included in kit
      • 6 gauge wire (Two 5 foot lengths of red and One 4 foot length of black)
      • Terminals and heatshrink included
    • Painless Wiring 250 AMP Waterproof Dual Battery Control

      • A three position switch enables different power combinations
      • Minimal alterations to the stock charging system are necessary
    • Rugged Ridge Dual Battery Relay Kit

      • Fits 1970 to 1986 CJ's
      • Fits 1987 to 2014 Wranglers
      • Used to control dual battery setups
    • Painless Wiring 250 AMP Dual Battery Control

      • 3 position switch for different power combinations
      • Minimal alterations to the stock charging system are necessary
    • Warn ATV / UTV Dual Battery Control Kit

      • This unit is made for ATV's and similar utility vehicles NOT for automotive use
      • Accomodates up to a 30amp hour battery with a max 60amps
    • Tow Ready Battery Isolation Solenoid

      • 3 Pole
      • 12 Volt
      • Chassis Ground
    • Painless Wiring Replacememt Solenoid

      • 250 Amp Solenoid
      • Ideal For Dual Battery Set Ups
      • Ideal For Ultra Heavy Duty Starter Solenoid
    • Westin T-Max Dual Battery System

      • LED Monitor
      • 500a Solenoid
      • Battery Terminals
      • Battery Cables Not Included
    • Wrangler NW Power Battery Manager Switch Kit

      • Fits 1991 to 1995 YJ Wrangler
      • 2.5L 4 cylinder engine and 4.0L 6 cylinder engine
      • With or without AC
Page 1 of 2: 1 2 Next »
  • Now Hiring

    4 Wheel Parts is Hiring

    To see all of our current job openings

    Apply Now

  • Catalogs

    4 Wheel Parts Catalog

    Free Full-Color
    Jeep & Truck Catalogs.

    Request a Catalog

  • Email Offers

    Sign up now to receive our latest promotions and exclusive offers.

  • Store Locator

    4 Wheel Parts Store Locator

    66 Stores in North America.
    Locate a store near you.

    Store Locator