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Accelerate Off-Grid Touring Dual Battery - Prado 250 Series - 220Ah Under Floor

Dual Battery - Prado 250 Series - 220Ah Under Floor

SKU AAE250-220UF-40A-SB1P

You loved our 100Ah Kit so we came out with a 220Ah Kit as well.
$4,089.00 - $4,109.00
$4,099.00
$4,089.00 - $4,109.00
$4,099.00

Designed for:

Prado 250 Series 2024+

Description

Take your Prado 250’s off-grid capability to the next level with the highest-capacity underfloor dual battery system available for the platform. Built around a massive 220Ah lithium battery, this premium system delivers 2.7kWh of hidden power for extended touring, fridges, lighting, induction cooking, compressors and compatible 2000W inverter setups—all without sacrificing valuable cabin or cargo space. Installed entirely beneath the rear floor, it suits both five-seat and seven-seat models while maintaining a clean, factory-style interior.

Every major component has been purpose-designed, tested and pre-wired specifically for the Toyota LandCruiser Prado 250 Series. The custom laser-cut tray securely houses the 220Ah battery, Quad MIDI fuse holder, six-way fuse block and Victron SmartShunt together as one integrated system. All cabling is cut to length, terminated, fused, protected and clearly labelled, with no cable required to be run into the engine bay—simply install the tray, route the supplied harnesses and connect everything through the colour-coded Anderson plugs.

Unlike a conventional system with a separately mounted charger, the 220Ah battery features a high-quality 40A DC-DC charger built directly into its aluminium enclosure for an exceptionally compact installation. Combined with accurate Bluetooth battery monitoring through the Victron SmartShunt and compatibility with our socket banks, inverter kits, compressor systems and RV Solutions drawers, this is the ultimate hidden-power upgrade for Prado 250 owners wanting maximum capacity in a complete, professional and genuinely DIY-friendly package.

Key Features

Under-floor installation – Keeps your cargo area and cabin free, with everything hidden beneath the factory floor

Massive 220 Ah capacity – Significantly extended runtime for fridges, lighting, induction, and larger power systems

Inbuilt 40A DC Charger - High quality internal DC charger has already been built into this 220Ah battery

Vehicle-specific tray design – Purpose-built tray engineered exclusively for the Prado 250 Series

Locally built & powder-coated – Laser-cut on the Sunshine Coast and powder-coated in textured black

Pre-terminated wiring loom – Fully fused, labelled, and plug-and-play, with no wiring run to the engine bay

Modular socket bank options – Choose passenger or driver side; optional add-on to run both

Compatible with RV Solutions drawer systems – Direct fit; not compatible with RV Solutions false floors

Works with Accelerator inverter/compressor kits – Integrated system with pre-mounted mega fuse when purchased together

Proudly designed and built by Accelerate Off-Grid Touring – Tested and proven on Australian touring vehicles

Battery + Charger

12v 220 Ah Underfloor Lithium + In-built 40A DCDC Charger > Spec Sheet
Exclusive under-floor fitment battery designed for maximum capacity in the Prado 250.

  • Slimline 12V 220Ah LiFePO₄ deep-cycle battery
  • Integrated 40A DC-DC charger (10–16V input)
  • Strong, lightweight aluminium enclosure
  • High-quality prismatic cells in metal hard case
  • Internal Australian-designed BMS
  • 240A continuous discharge
  • Up to 140A charging capability
  • M8 threaded terminals for secure connections
  • 1 x Grey Anderson (50A in/out)
  • 1 x Blue Anderson (DC-DC charger input)
  • Short-circuit, over-current, over-voltage, and under-voltage protection
  • Battery on/off switch
  • Parallel capable
  • Series capable (max 2 in series)
  • Designed and assembled in Australia

Specifications

  • Chemistry: LiFePO₄
  • Nominal Voltage: 12V
  • Capacity: 220Ah
  • Energy: 2.7kWh
  • Recommended Charge Voltage: 14.0V (13.8–14.6V acceptable)
  • Full Charge Voltage (100% SoC): 13.8V
  • Low-Voltage Cut-off: ~10.5V
  • Max Charge Current: 140A
  • Max Discharge: 240A continuous
  • Surge Discharge: 480A
  • Cycle Life:
    • 2000 cycles @ 80% DoD
    • 5000 cycles @ 50% DoD
  • Weight: 24.0 kg (24.8 kg packaged)
  • Parallel Capable: Yes
  • Series Capable: Yes, up to 2 batteries
  • Dimensions:
    • Width: 257 mm
    • Depth: 90 mm
    • Length L1: 672 mm
    • Length L2: 682 mm (including terminals/handles)

Socket Bank Options

Choose which side you want your sockets located.
(All socket banks come pre-wired and fused from the 6-way fuse block.)

Available Passenger or Drivers Side 

Socket Bank 1

  • USB A/C
  • 12 V Socket
  • 1 x Grey Anderson Outputs
  • 1 x red Anderson Input

Socket Bank 2

  • Dual USB A/C
  • 1 x Grey Anderson Outputs
  • 1 x red Anderson Input

Socket Bank 3

  • USB A/C
  • Engel Fridge Socket
  • 1 x Grey Anderson Outputs
  • 1 x red Anderson Input

Optional Upgrade (Add-On Product)

Dual Sockets – Install socket banks on both sides. 

Socket Bank Orientation Note

When adding a second socket bank, make sure to select the opposite side to the one chosen for your kit.
For example:

  • If your dual battery kit includes a driver-side socket bank → select passenger-side as your add-on.
  • If your kit includes a passenger-side socket bank → select driver-side as your add-on.

This ensures both sides of the vehicle are covered and all wiring reaches correctly.

What’s Included

  • Accelerate 220 Ah underfloor battery tray – purpose-built, laser-cut, and powder-coated textured black
  • 220Ah Battery2- With inbuilt 40A DC-DC Charger
  • Quad MIDI fuse holder – fused for DC-IN, DC-OUT, solar, and fuse box
  • 6-way fuse block – pre-fused for socket banks with spare circuits for future accessories
  • Victron SmartShunt – full battery monitoring via app
  • Pre-terminated wiring harness – professionally loomed, fused, labelled, and plug-and-play
  • Blue Anderson (charger input)
  • Grey Anderson (output to socket bank)
  • Red Anderson (solar input)
  • Battery strap, brackets, and all mounting hardware
  • Protective conduit and all required terminals
  • Installation guide and wiring diagram

Specifications

  • System Voltage: 12 V
  • Battery Capacity: 220 Ah Lithium (LiFePO₄)
  • Charger: Inbuilt DC-DC Charger
  • Monitoring: Victron SmartShunt
  • Mounting Location: Under rear floor
  • Tray Finish: Textured black powder-coat
  • Vehicle Compatibility: Toyota LandCruiser Prado 250 Series (2024 onwards)
  • Fitment Notes:
    • Compatible with RV Solutions drawer systems
    • Not compatible with RV Solutions false floors (battery height clearance)
    • Not yet tested with other brand floors/drawers
Shipping & Returns

Shipping Policy

This kit has a 2 business day fulfilment time. This means your order will be picked, assembled (if required), and prepared for dispatch within two 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 2 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.

We take care to ensure your order is securely packaged 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 and inspected, and meets 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, in original packaging
  • The customer is responsible for the shipping cost to return the original product
  • The customer is also responsible for the shipping cost of the replacement product being sent out

Once the original item is 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 Instructions

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 250 Series?

If you’d like this 250 Series 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.

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.

FAQs

Does this kit work with the Accelerate inverter/compressor bracket for the Prado 250?

Yes. This underfloor kit is designed to work perfectly with our inverter/compressor bracket system.

If you purchase both together, we will pre-mount the inverter mega fuse onto the battery tray for you to make installation even easier.

Can I run socket banks on both sides of the vehicle?

Yes. Simply add the Dual Socket Upgrade (add-on product) to your order.

This includes the Prado-specific Y-lead that safely connects both socket banks to the underfloor system.

Are instructions included with the kit?

Yes. Every kit comes with a full installation video and a detailed PDF instruction manual including wiring diagrams, photos, and step-by-step guidance.

Do I need to run any cabling from the engine bay to the rear?

No. This is a self-contained underfloor system.

All charging, fusing, solar input, and output wiring is located in the rear of the vehicle — there’s zero cabling run through the vehicle.

Does the REDARC Alpha 50A work in the Prado 250?

Yes — when limited to 40A.

We pre-program the Alpha 50A to a 40A limit, making it fully suitable for the Prado 250 while still offering faster charging and jumpstart capability.

Will this fit with drawer systems?

This kit is:

  • Compatible with RV Solutions (RVSS) drawer systems
  • Not compatible with the RVSS false floor (battery height clearance)
  • Not yet tested with other aftermarket drawer or false-floor systems

Does this kit work in both 5-seat and 7-seat Prado models?

Yes. The tray and wiring loom are designed to work with both seating configurations.

Will the 220Ah battery fit under the factory floor without raising it?

Yes. The custom tray is engineered specifically to house the underfloor 220Ah battery while retaining the factory floor height.