Boss 4WD DIY Dual Battery Kit

Item Code: BOSS4DBKT403D + BOSS4DBMK

This item is currently on sale and is being offered with Free Shipping and a  Free Dual Battery Monitor Kit worth $80!

Complete DIY Dual Battery Kit including a Boss 4WD Auxiliary Battery Tray, a Thunder 20A DC-DC Charger , and a Boss 4WD Dual Battery Wiring Kit. For a limited time this kit also ships with a Dual Battery Monitor Kit worth $80 for FREE!

Fitment Details

This item fits the below application only:

Make Toyota
Model Landcruiser VDJ70 Series
Year Range 2007+
Engine 4.5L V8 T/Diesel
Transmission All
Location Passenger Side Rear
Battery Size N70 (12")
Notes Specify if vehicle is fitted with ABS

It is the buyers responsibility to confirm that the described fitment details match the application.

Item Specifics

This listing includes the following items:

  • 1 x Boss 4WD Auxiliary Battery Tray (Vehicle Specific)
  • 1 x Thunder 20 Amp DC-DC Charger
  • 1 x Boss 4WD DC-DC Charger Wiring Kit:
    • 4M x 13mm² Twin Sheath (Positive + Negative) Battery Cable
    • 1 x Heavy Duty Positive Battery Terminal
    • 1 x Heavy Duty Negative Battery Terminal
    • 4M x 19mm Split Corrugated Conduit
    • 6pc x Red Heat Shrink
    • 4pc x Black Heat Shrink
    • 4 x 16mm * 8mm Metal Crimp Lugs
    • 4 x 16mm * 10mm Metal Crimp Lugs
    • 2 x 16mm Joiner Metal Crimp Lugs
    • 4 x 8G Panhead Screws
    • 6 x 200mm Cable Ties
    • 1 x Wiring Diagram
  • 1 x Boss 4WD Dual Battery Monitor Kit:
    • 1 x 29mm Round Dual Battery Monitor (Main + Aux)
    • 8M x 4mm² Red (Positive) Automotive Cable
    • 4M x 4mm² Black (Negative) Automotive Cable
    • 2 x Waterproof Blade Fuse Holder + 5A Blade Fuse
    • 8M x 7mm Split Corrugated Conduit
    • 2 x Blue Joiner Crimp Terminal
    • 3 x Blue Spade Crimp Terminal
    • 3 x Blue 8mm Eye Crimp Terminal
Item Description

Complete Kit

The Boss 4WD Complete DIY Dual Battery Kit is back! Our highly sought after kits include everything you need to install a dual battery system in your 4WD apart from the tools, labour and battery. Each kit includes one of our seriously strong auxiliary battery trays, a Thunder 20 Amp DC to DC Charger for newer vehicles, and a wiring kit that has been specced up to handle whatever you throw at it. We don't mess around when it comes to keeping your beer cold - our philosophy is to over-spec the cabling, ensuring that you're not going to be sipping on warm beer in the middle of the desert due to a faulty or poorly designed battery system.

We supply the best dual battery kits there are! Read below for more information on each component, and see why we make such bold claims:

Thunder 20 Amp DC-DC Charger

Thunder are well known for providing great value 4WD accessories, including this DC to DC Charging System. The DC to DC Charger is used in place of a battery isolator on vehicles that have an alternator controlled by the ECU. The charger negates the drop or decline in output from the alternator, ensuring your auxiliary battery remains charged, and your beer icy cold.

Thunder's solution to this style of isolator is an 8 Stage, 20 Amp self-diagnosing charging system, that even incorporates a 300W MPPT Solar Regulator. This system is simple to install, and sports an easy to read LED display. Being housed in an aluminium casing helps dissipate the heat, ensuring the components stay cool and delivering maximum performance.

Wiring Kit

Did we go a bit overboard when we designed our wiring kits? Some may say so, but we think they're spot on. By over-speccing the cable we supply (and use for our own vehicles) we can ensure that the cable will never "bottle-neck" the system, nor will it be the cause of a battery system failing.

We supply 13mm² (6B&S) Twin Sheathed Battery Starter cable in our DC-DC kits, which is over twice the thickness of the cable supplied in many kits. Both positive leads are fused by a 50 Amp Maxi-Blade Fuse to protect the system. The gradual breakdown of cables due to heat and corrugated roads will also pose less of a problem.

We also supply heavy duty brass battery terminals, full metal crimp lugs, heat shrink, split corrugated conduit, and even cable ties. This means you'll be able to have the neatest, best performing battery system around. We even supply a basic wiring diagram to help you with the install. What this all means for you is cold beer

Battery Tray

An Auxiliary Battery Tray is a key component of a Dual Battery System, and will allow you to fit second (or sometimes even a third) battery under the bonnet of your 4WD.

This high quality steel - not plastic - battery tray is manufactured right here in Australia, and is not just another cheap imported copy. Each tray is designed specifically to suit a particular vehicle application, taking into consideration factors such as heat, strength and maximum battery sizes.

Our battery trays come as a complete kit along with fitting instructions, all required hardware, and a battery hold down clamp. We are even happy to supply a battery system wiring diagram free of charge if you purchase a battery tray or kit from us - simply send us your email address, and we will email you the pdf.

Check out these features, and see why we're proud to offer the best battery trays on the market:

Vehicle Specific Applications

Each Battery Tray has been CAD designed for the most accurate fit, largest possibly battery size, and most optimal strength.

Thick Steel Construction

This battery tray is constructed from 2mm thick Mild Steel, which is then Zinc Plated and finished in a black Powdercoat to prevent corrosion.

High Sides & Bracing

Where possible, all trays feature high sides for extra strength and support, and to act as a heat shield, protecting your battery.

Extra Brackets Included

Sometimes in order to install a battery tray, factory items may need to be relocated. If this is the case, provisions to move the item that needs relocating are included in the fitting kit.

Complete Bolt-In Kit

Every tray comes with detailed fitting instructions, all required nuts, bolts and any other hardware required to fit it, a battery hold down clamp, and detailed fitting instructions.

Proudly Australian Made

This item is proudly made in Australia by Boss 4WD. By purchasing this item you are keeping your dollar local and helping a fellow Aussie keep their job.

Shipping & Payment

Shipping

 This item can be shipped via Road Service only.

Shipping Policies

  • A tracking number and courier details will be provided upon shipment.
  • Our couriers require a phone number to be placed on their consignment. Please ensure that your mobile phone number is made available to us.
  • Small & Lightweight items will be shipped via an express service where available.
  • If you live in a remote, regional or rural area, please contact us for a shipping quote prior to making your purchase.
  • International shipping is by quotation only. Please contact us for a quote on international shipping.

Payment

Payment must be made within 5 days of purchasing this item. We accept the following payment methods:

PayPal
  • If paying by PayPal, we will ship to your PayPal registered address only.
  • If paying by PayPal eCheque, please allow up to 5 days for the eCheque to clear.
  • If a PayPal payment is placed under review and rejected, payment will be accepted by Bank Transfer only.
Credit Card
  • We accept most major Credit Cards, processed by CommBank.
  • To pay by Credit Card, please contact us for instructions.
Bank Transfer
  • Our account details will be displayed in the ebay checkout.
  • Please use your ebay username as the payment reference.
  • Please allow up to 3 days for your payment to clear in our account.
Boss 4WD - Australian Made 4WD Accessories

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