Saddle up ladies and bushmen because we could not be more excited about this product. If you’ve been searching for the solution to your limited space issues in your 4WD then look no further than Baintech Slimline lithium batteries. Designed to fit in tight spots and can be conveniently mounted in those useless spaces in your 4wd, camper or caravan, this revolutionary design is all the recent hype in the world of 12v battery systemsat only 50mm thick including the option of a build in DC to DC charger. We installed a Baintech 12v 110AH Slimline lithium battery into a Ford Ranger dual cab behind the back seats.  

In total it took about a day to wire up a 40ah Redarc DC-DC battery charger, a Baintech 6-way fuse box with an indication light and a 110w Baintech flexi panel on the roof. We used a 60 amp Redarc inline MIDI fuse to ensure that everything is properly protected. Note that the fuse we used is rated higher than the 40 amp charger. It’s important to make sure your fuse rating (60a) is in-between your battery charger or loads (40a) and your wiring (4AWG 85a). This is because if a wire rubs against anything and shorts, the fuse (60a) will blow before the cable will overheat and become damaged. Depending on the kit you choose to use with it, you can earth to the chassis or back to the main battery while using twin core 4AWG cable. We chose to use a Baintech 6-way fuse box to make it easier and neater in terms of the wiring up our accessories. This is a great place to get started, however as you start to accumulate more accessories, we suggest installing a shunt to be able to see the status of your current draw from the Baintech slimline lithium battery and the input of your solar charging from the 110w Baintech flexi panel. Another important tip to remember is to make sure your inline fuses are as close to the batteries as possible to protect the most amount of cable.  

The tools we used: 

  • Wire strippers 

  • Soldering iron 

  • Solder 

  • Blow torch 

  • Crimper 

  • Trim remover tools 

  • Wrench  

  • Drill 

  • Mounting hardware (rivets, pop rivets, bolts, board, L brackets, cam buckle straps) 

Whilst on a 4-week road trip up to Cape York, we were able to test the reliability of the Baintech slimline lithium battery. Whilst constantly running a camping fridge, camp lights, a small inverter, a 12v pump, charging camera batteries and with driving every day, the state of charge didn’t dip below 70%, with a 40a DC-DC charging the aux battery off the alternator. Whilst the solar panel did kick in most of the time on the trip, the alternator would have been more than enough to charge this Baintech 110AH slimline lithium battery from a Redarc 40ah DC-DC battery charger. Redarc's Green Power Priority made great use of the solar panel as to not overwork the alternator.

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