Skip to content
Accelerate Off-Grid Touring DIY Kits No Battery / Redarc Alpha (25A) - Solar Through Grille / Socket Bank 1 Dual Battery - LC300 Series - Under Bonnet - With Jumpstart Feature

Dual Battery - 300 Series LandCruiser Diesel - Under Bonnet - With Jumpstart Feature

SKU 300/A25/SB1/NB

Our premium under-bonnet dual battery system for the Toyota 300 Series LandCruiser Diesel with a jumpstart feature.
$2,388.00 - $3,897.00
$2,388.00
$2,388.00 - $3,897.00
$2,388.00

Designed for:

Toyota LandCruiser 300 Series Diesel (2022–Current), excluding Petrol Hybrid models.

Description

This isn’t just another battery tray and a box of wiring—it’s the most comprehensive DIY dual battery kit on the market for the Toyota 300 Series LandCruiser Diesel. Every major component has been carefully designed, tested, pre-mounted, pre-wired, fused, labelled and terminated by our experienced auto electricians, giving you a complete, vehicle-specific power system that installs neatly under the bonnet without sacrificing any interior or cargo space. At the heart of the system is the advanced REDARC Alpha BCDC charger, providing intelligent alternator and solar charging, Bluetooth monitoring, adjustable input control, automatic start-battery maintenance and the ability to recover a flat start battery with the push of a button in as little as 15 minutes. The kit also includes our custom Australian-made battery tray and charger bracket, a vehicle-specific heavy-duty charge harness, your choice of Invicta Xero under-bonnet lithium battery, integrated solar input and a passenger-side rear socket bank for conveniently powering your fridge and accessories. There’s no need to source individual components, work out cable sizes, fabricate brackets or decipher a complicated wiring diagram—everything has been engineered to work together as one complete system. Designed, manufactured and assembled by Accelerate on the Sunshine Coast, this premium kit delivers the finish, reliability and performance of a professionally installed auto-electrical system in a genuinely DIY-friendly package, making it the ultimate power upgrade for 300 Series LandCruiser Diesel owners who want the very best for touring, towing and off-grid travel.

Important fitment note: This kit is designed for the 300 Series LandCruiser Diesel only. It does not fit petrol hybrid models.

Key Features

Start Battery Charging – Recover a flat start battery with the push of a button in as little as 15 minutes, and utilise excess solar power to automatically maintain your start battery when the auxiliary battery is full

Under-bonnet install – Keeps your interior and cargo space free for gear, passengers, and storage.

Retains Factory Plastic Battery Cover - fits back on over the dual & start battery

Pre-wired components – Delivered as a true plug & play system for a fast, hassle-free installation.

Vehicle-specific charge harness – Designed specifically for the 300 Series LandCruiser Diesel for perfect fitment with no cutting or splicing.

REDARC Alpha BCDC charger – Adds start battery charging capability, Bluetooth monitoring, and smarter charging control.

Start battery maintenance & Green Power Priority™ – Keeps your start battery healthy while prioritising solar input to reduce alternator load.

Adjustable alternator input draw – Allows you to set the maximum current draw to protect your vehicle’s electrical system.

Heavy-duty 6 B&S cabling – Ensures efficient charging of lithium dual battery systems while you drive, covered in self-winding sheathing.

Custom battery tray & BCDC bracket – Laser-cut aluminium, powder-coated matte black for durability and a clean look.

Designed and built by Accelerate – Proudly engineered and tested on the Sunshine Coast for Australian touring conditions.\

 

What’s Included

  • Custom laser-cut aluminium battery tray (under-bonnet installation)
  • Custom laser-cut aluminium BCDC bracket 
  • REDARC Alpha BCDC charger (25A or 50A – pre-mounted on BCDC Bracket)
  • Choice of solar input (through grille or under bonnet)
  • Invicta lithium battery (if selected)
  • Vehicle-specific charge harness pre-wired and pre-terminated 
  • Accelerate socket bank of your choice (rear cupholder mount)
  • All mounting hardware

Solar Input Options (Important for GR Sport Owners)
This system includes a RED Anderson solar input plug mounted on the front of the BCDC bracket for easy solar connection on standard 300 Series LandCruiser Diesel grilles.

If you have a GR Sport with the honeycomb grille, the front-mounted solar plug cannot be used due to grille clearance issues.
Instead, we will supply a dedicated under-bonnet solar mounting bracket so you can still run portable solar panels safely and cleanly.

Battery Options

No Battery – Internal battery space allows you to supply and install your own battery, only suits lithium batteries. 

Internal Battery Space – Sized to suit batteries up to approx. 308mm (L) x 168mm (W) x 220mm (H)

Invicta Xero 100Ah (SNLX12V100BT) – High-performance lithium battery with advanced BMS, Bluetooth monitoring and rugged IP67 design, backed by a 3-year under bonnet warranty.

Invicta Xero 120Ah (SNLX12V120BT) – Increased capacity lithium battery ideal for higher power demands, featuring advanced BMS, CAN bus communication and Bluetooth monitoring, also backed by a 3-year under bonnet warranty.

Invicta Xero Range Benefits:

  • High performance BMS – Supports up to 500A pulse and 150A continuous discharge\

  • Long cycle life – 3000+ cycles at 100% depth of discharge

  • CAN bus communication – Direct integration with system components for accurate data

  • Bluetooth monitoring – Easy access via the Invicta app

  • IP67 rated design – Water and dust resistant for harsh environments

  • Rugged internal construction – Reinforced casing and vibration-resistant design

  • Advanced safety features – Built-in passive and active protections\

 

Charger Options

REDARC Alpha 25A (BCDC12025B) – Compact, smart alternator-compatible DC-DC charger ideal for small-to-medium battery systems, featuring dual input (solar + alternator) and Bluetooth monitoring for full system control.

REDARC Alpha 50A (BCDC12050B) – High-performance DC-DC charger designed for larger battery banks and higher power demands, delivering faster charging with advanced monitoring and control features.

Alpha Series Benefits:

  • Start battery charging support – Charge and manage your start battery via Bluetooth app
  • Start battery maintenance – Maintains start battery health when parked
  • Green Power Priority™ – Prioritises solar input to reduce alternator load
  • Adjustable input current limit – Protects vehicle systems and suits smart alternators
  • Dual input – Charges from solar and alternator simultaneously
  • Bluetooth monitoring – Full visibility and control via RedVision app
  • IP67/69K rated – Built for harsh off-road and marine environments
  • Over-the-air updates – Future-proof with wireless firmware upgrades

Socket Bank Options

Passenger-Side Socket Banks (Included Option)

Socket Bank 1

  • 1 x USB A/C
  • 1 x 12V socket
  • 2 x Grey Anderson outputs

Socket Bank 2

  • 2 x Dual USB A/C
  • 2 x Grey Anderson outputs

Socket Bank 3

  • 1 x USB A/C
  • 1 x Engel fridge plug
  • 2 x Grey Anderson outputs

Note: Socket banks are supplied for passenger-side installation only. If you require a driver-side socket, please purchase the Driver-Side Add-On Socket with Y-Lead Bundle.

Specifications

  • Vehicle Compatibility: Toyota 300 Series LandCruiser Diesel only. Does not fit petrol hybrid models.
  • Battery Compatibility: Lithium Batteries Only
  • Tray Dimensions: 375mm (L) × 325mm (W) × 215mm (H)
  • Maximum Battery Size: 308mm (L) × 168mm (W) × 220mm (H)
  • Maximum Battery Weight: 15kg
  • System Voltage: 12V
  • Mounting Location: Under Bonnet
  • Construction: Laser-Cut Aluminium
  • Finish: Matte Black Powder Coat
FAQs

Is this kit compatible with the 300 Series LandCruiser Petrol Hybrid?

No. This kit is designed exclusively for the Toyota 300 Series LandCruiser Diesel (2022–Current). It is not compatible with Petrol Hybrid models.

What is the difference between this kit with the jumpstart feature and your other 300 Series LandCruiser Diesel kit?

This version uses the REDARC Alpha DC-DC charger, which adds premium features including a built-in jumpstart function, start battery maintenance, Green Power Priority charging, and adjustable alternator amperage draw. The standard kit uses a REDARC Classic charger and does not include these features.

How do I use the jumpstart feature?

It’s controlled entirely via Bluetooth through the REDARC app on your phone. Simply connect to the charger through the app, follow the prompts to enable jumpstart mode, and the system will safely direct power from your auxiliary battery to your starter battery.

I have a GR Sport, will solar through the grille work?

No, on the GR Sport model solar through the grille won’t work due to the factory front design. You can instead choose an under-bonnet solar input or a roof-mounted solar connection.

I want to tow my caravan, can I add towing electrics to this kit?

Yes. You can add an isolated Anderson plug, an electric brake controller, and ESC compatibility. Just select the towing bundle when ordering, and everything will be integrated into your install.

Does my Alpha DC-DC charger have temperature protection?

Yes. The Alpha DC-DC charger has intelligent thermal protection built in.

  • If the internal temperature exceeds approximately 55°C, the charger will gradually reduce output to protect internal components.
  • If the internal temperature reaches approximately 80°C, the charger will fully shut down to prevent damage.

Once temperatures return to a safe operating range, normal charging will automatically resume.

  • If the internal temperature exceeds ~55°C, the charger will gradually reduce output to protect internal components.
  • If the internal temperature reaches ~80°C, the charger will fully shut down to prevent damage.

Once temperatures return to a safe operating range, normal charging will automatically resume.

Shipping & Returns

Shipping Policy

This kit has a 3 business day fulfilment time. This means your order will be picked, assembled (if required), and prepared for dispatch within three business days of purchase.

Once dispatched, you will receive a tracking number via email so you can monitor the progress of your delivery.

Estimated delivery timeframes within Australia:

  • Standard Shipping: 5–7 business days
  • Express Shipping: 3–5 business days

Please note:

  • Delivery timeframes are estimates and may vary depending on your location and the shipping carrier.
  • Delivery timeframes do not include the 7 business day fulfilment time.
  • Tracking updates may take time to appear after dispatch while the carrier processes the shipment.
  • Once your order has been dispatched, it is in the hands of the shipping carrier. For delivery updates, delays, or enquiries, we recommend contacting the carrier directly using your tracking number.

Lithium Battery and Dangerous Goods Shipping

If you purchase a dual battery kit that includes a lithium battery, the shipment will be classified as Dangerous Goods and sent via TNT/FedEx.

The lithium battery and the remainder of your kit may be packed separately and may arrive at different times, even though they are travelling under the same tracking or consignment number.

Dangerous Goods shipments must pass through additional handling and safety checkpoints while in transit. They may be temporarily held at these checkpoints for processing, which means we cannot provide an exact delivery date or ETA. Tracking updates may also pause for a period while the consignment is being processed.

These delays are part of TNT/FedEx’s Dangerous Goods transport process and are outside our control. Please continue monitoring your tracking information or contact the carrier directly for the latest available update.

We take care to ensure your order is securely packaged, correctly declared and dispatched as quickly as possible.

Returns Policy – 30 Days

We offer a 30-day return period from the date your order is delivered.

To be eligible for a return, the product must be:

  • In as-new, resellable condition
  • Unused and uninstalled
  • In the original packaging, including all supplied components and hardware
  • Free from damage, modification or signs of installation

Returns that do not meet these conditions may be refused.

The customer is responsible for all return shipping costs.

Once the returned product has been received, inspected and confirmed to meet our return criteria, a refund will be processed to the original payment method.

Original shipping costs are non-refundable.

Exchanges

If you wish to exchange a product for a different item, the following applies:

  • The original product must be returned in as-new, resellable condition and in its original packaging.
  • The customer is responsible for the cost of returning the original product.
  • The customer is also responsible for the shipping cost of the replacement product.

Once the original item has been received and inspected, we will arrange dispatch of the replacement product.

Important Notes

  • We recommend using a tracked shipping service when returning products, as we cannot be responsible for items lost in transit.
  • Accelerate Off-Grid Touring reserves the right to inspect and verify the condition of all returned items before approving refunds or exchanges.
  • Products that have been installed, modified, damaged or are missing components may not be eligible for return.
Installation

Doing it yourself?

Installation Video
Installation PDF

If you run into any issues during your install or need some advice, our team is here to help.

Simply click here to access our Tech Support Form and we’ll get back to you as soon as possible.

Want It Installed In Your 300 Series?

If you’d like this 300 Series Under Bonnet Dual Battery Kit professionally installed into your vehicle, we’ve got you covered.

Simply purchase this product and then get in touch with the team at Accelerate Off-Grid Touring to book your installation.

Installations start from $770 – contact us for a tailored quote.

Address: 17 Trinder Avenue, Maroochydore QLD
Phone: 07 5479 6652
Website: accelerateoffgrid.com.au

Click here to get in touch and book your install.

Customer Reviews

Overall rating: 4.8 / 5 from 9 reviews.

PLEASE NOTE: Accelerate Off-Grid Touring has many Designs, Patents, and Trademarks registered in Australia and internationally.