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Behind-Seat Slimline Dual Battery System Kit (Lithium)

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Behind-Seat Slimline Dual Battery System Kit (Lithium)

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Behind-Seat Slimline Battery System: Ford Ranger & Mazda BT50

We have engineered a complete dual battery system that can fit behind the rear seat. This is the ultimate solution for Utes and Dual Cab vehicles that can’t fit a battery under the bonnet or those who don't a battery box taking up valuable tray space.

Our DIY kit has been tested on the following vehicles: 
  • Ford Ranger - PX MkI, MkII & MkIII - 2013 to Current
  • Mazda BT50 - 2013 to Current 

If you have a vehicle not mentioned above please review the total dimensions required for the system or call our office before purchasing to ensure your vehicle is suitable. 

Total Dimensions: 
  • Height: 24.5cm
  • Length: 74.3cm
  • Width: 14.3cm

Want us to fit it for you? Install prices vary between vehicles, please call us on 07 5479 6652 to get a supplied and fitted quote. 

Please specify which side of the vehicle you will be fitting the socket box (drivers side or passenger side) and note your preference in the 'Special Instructions for Seller' section.

Slimline Battery: 

Lithium - INVICTA 100Ah Battery (12.4kgs)

DC-DC Charger:

Redarc BCDC1225D - 25Amp 3 Stage DC-DC Charger 
Not Recommended for Lithium Batteries 

Redarc BCDC1240D - 40Amp 3 Stage DC-DC Charger
Recommended Charger for Lithium Battery Options


Each kit comes with a Base Kit that includes: 

  • Installation Instructions 
  • Slimline Battery Bracket
  • Socket Panel - 2 Options with 3 Variations Each Available 
  • Slimline BatteryLithium Only
  • DC-DC Charger - 2 Charger Options Available 
  • 6 Way Fuse Box
  • 3x Grey Anderson Plugs
  • 1x Red Anderson Plug
  • Twin Midi Fuse Holder
  • 60A Midi Fuse
  • 250A Single Midi Fuse Holder
  • 7m x 8 B&S Cable
  • 1m x 6 B&S Cable 
  • 5m x 6mm Twin Core Cable
  • 5m x 9.9mm Split Convoluted Tubing 
  • Thunder Tie Down Straps
  • 8mm Cable Lug

Options Available: 


Standard - Raw Aluminium

Socket Panel:

Dual Sockets:

  • Option 1 - 2x 12V Sockets
  • Option 2 - 1x 12V Socket & 1x Dual USB 
  • Option 3 - 1x 12V Socket & 1x Voltmeter

Socket Box:

  • Option 1 - 1x Anderson Plug, 2x 12V Sockets, 1x Voltmeter, 1x Dual USB
  • Option 2 - 1x Anderson Plug, 1x 12V Socket, 1x Engel Style Socket, 1x Voltmeter, 1x Dual USB
  • Option 3 - 1x Anderson Plug, 1x 12V Socket, 1x Merit Style Socket, 1x Voltmeter, 1x Dual USB
Here are 4 more great reasons to buy from us:


Returns are easy, simply contact us within 30 days for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

We are 4 wheel drive and camping specalists, we live and breath this and we bring that passion and expertise to everything we do.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from Shoptimized is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either.



Postage Time Frames: 

As each kit is custom built it may take us some time to process and dispatch your order. 

  • 2 weeks estimated dispatch time
  • Shipping can take 1-2 weeks depending on your location and postal service

If you need your kit within a particular deadline, please contact us prior to ordering so we can ensure your items can arrive on time. 

Behind-Seat Slimline Dual Battery System Kit (Lithium)


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