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SDHQ Off Road

'07-20 Toyota Tundra SDHQ Built Complete Dual Battery Kit

  • VENDOR: SDHQ Off Road
  • PART#: SDHQ-53-3000-G3
  • YOUR PRICE: Regular price $839.90
Required if want to mount factory sized batteries (24F or 27F) or larger batteries (Group 35) with our SDHQ Built Battery Hold Down Kit
For use with most SDHQ Dual Battery Kits when running a 24F or 35 battery in the secondary location.

Customizations Total: $0.00


Our SDHQ Built Dual Battery kit for the 2007-2020 Toyota Tundra is the most durable dual battery system on the market today. This dual battery kit was 3D CAD designed, engineered & built in-house for our typical SDHQ Built quality, fit, and finish.

Benefits of running a dual battery system
If you are someone who goes or is planning on going on 4x4 camping trips (overlanding), then you will need auxiliary power. A dual battery system is where two separate batteries are working in conjunction with each other. However, each battery has a different purpose. Running a second battery will ensure your Toyota Tundra has start-up power and that your fridge, lights, and other campsite accessories have constant power.

FITMENT: 2007-2020 Toyota Tundra 


  • 3D CAD designed, engineered & built in-house for our typical SDHQ Built quality, fit, and finish
  • Drilling (2) ¼” mounting holes required
  • The tray mounts to (7) locations on top and (1) location to the side of the wheel well
  • Second battery location provides better weight distribution than systems that put the batteries right next to each other.
  • Triangulated mounting positions to provide superior strength (utilizes the firewall, inner fender, and wheel well when mounting).
  • Fits batteries with dimensions up to 10 7/8” Wide x 6 7/8” Deep x 7 1/2” Tall (top of battery, not terminal).
  • Powder coated black for a durable finish.
  • Test Fit with Stock and TRD Intake Air Box Systems (may fit with other intake systems but not guaranteed)
  • Intergrated mount for optional Blue Sea Systems ACR
  • Recommended to use 2 new matching batteries. *Batteries are not included*
  • Secondary Battery Tray Kit-SDHQ-53-3001-G3
  • Dual Battery Wiring Kit-SDHQ-50-3002-U1
  • Secondary Battery Tray Kit-SDHQ-53-3001-G3
    • Powder coated black for a durable finish.
    • Includes Billet Hold Down
    • Fits batteries with dimensions up to 10 7/8” Wide x 6 7/8” Deep x 7 1/2” Tall (top of battery, not terminal).
    • Does NOT fit Group 27 or 31 batteries
    • Battery Fitment
      Mount fits Group 24, 34/34R (34R fits stock battery location) and 35 series batteries
      • Fits Group 24 and 35 batteries with the SDHQ Built Secondary Battery 24F/35 Upgrade Kit (SDHQ-50-3005-24F) *See product configuration
  • SDHQ Built Dual Battery Wiring Kit-SDHQ-50-3002-U1
    This kit includes everything needed to wire your SDHQ Dual Battery Mount System
    • Premium Cross-Linked SAE J-1127-SGX cables
      • 2 AWG Main Cables (main to aux battery ground and main/aux batteries to ACR)
      • 4 AWG Second Battery to Frame Ground Upgrade
      • 6 AWG Main Battery to Body Upgrade
      • 6 AWG Aux Battery to Body Upgrade
    • Upgraded ground wires provide better connection between both batteries and Body/Frame grounds
    • Circuit allows up to 500 Amps continuous draw and 700 Amps for 5 minutes. 
    • Cranking rating of 1450 @ 30 seconds. 
    • Live Current Switching up to 300 amps. 
    • Circuit is designed to auto charge the 2nd battery when the vehicle is running, but isolates the 2nd battery when the vehicle is off. Leaving the second battery for emergency starting. 
    • Manual switch on the circuit allows the batteries to combine or isolate. 
    • Optional Remote switch control and LED output to indicate when the batteries are combined, isolated or in lockout. 
    • Undervoltage lockout below 9.6 Volts. Overvoltage lockout above 16.2 Volts. 
  • Tundra Dual Battery Billet Power Steering Reservoir - SDHQ-53-9211-G3
    • Upgrades the factory power steering reservoir to the SDHQ Billet Power Steering Reservoir
    • Includes the SDHQ Billet Power Steering Reservoir, the SDHQ Dual Battery PS Mount and new power steering hoses. (reuses hardware from the Tundra Dual Battery Tray)
    • SDHQ-00-9204-U1 SDHQ PS Filter is an optional upgrade with the SDHQ PS Reservoir
    • NOTE: If you already own our SDHQ Built Power Steering Reservoir then you will need to purchase the Tundra Dual Battery Billet Power Steering Mount-SDHQ-53-9212-G3 
  • Windshield Wiper Bottle Relocation Kit-SDHQ-53-1160-G3
    This kit removes the factory windshield wiper bottle in Toyota Tundras. To maintain a windshield wiper bottle, purchase the Tundra Windshield Wiper Bottle Relocation Kit
    • For Tundras only. Relocates a new Windshield Wiper Bottle behind the air intake.
    • Includes new 2 Quart Windshield Wiper Bottle with pump, relocation mount, harness to power pump and hardware.
      • This kit will allow you to run a 24F or 35 battery in the secondary battery location.
      • Includes 2 J-Hook Extensions and 2 10" threaded rods (allowing you to fit a 24F or 35 battery)