Toyota LandCruiser 300 Series Under-Bonnet Dual Battery Kit with Start Battery Charging

Designed for a clean, factory-style power upgrade, the Toyota LandCruiser 300 Series Under-Bonnet Dual Battery Kit delivers reliable off-grid performance without sacrificing interior or cargo space. Purpose-built for the LC300 platform, this plug-and-play system integrates seamlessly under the bonnet while maintaining a tidy OEM-style finish.

Featuring the advanced REDARC Alpha BCDC charger, this system provides intelligent charging, start battery support, solar prioritisation, and Bluetooth monitoring — giving you complete control over your touring power setup.

Add the Isolated Anderson Plug for caravan charging, ESC power for your van, or a Tow-Pro and trailer bracket for a complete towing and power solution.

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 LC300 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 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.

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

• Tray Dimensions: 375mm (L) x 325mm (W) x 215mm (H)
  
• Internal Battery Space: Sized to suit batteries up to approx. 308mm (L) x 168mm (W) x 220mm (H)
  
• Maximum Battery Compatibility: Designed around Invicta Xero lithium battery range
  
• System Voltage: 12V
  
• Mounting Location: Under bonnet
  
• Construction: Laser-cut aluminium
  
• Finish: Matte black powder-coated
  
• Vehicle Compatibility: Toyota LandCruiser 300 Series

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