Thread: Dual Battery Disco 4

Hi Admiral, my intention is to cater for removable battery boxes for the rear cargo area.

The likelihood that there would be many people using all 7 seats while on a trip is fairly remote so with the rear seats ( actually just one seat ) folded down, a battery box can be secured in the rear cargo area utilising the D4’s tie down anchor points.

This simplifies the requirements of having an auxiliary battery when needed and the cabling installation in the D4 is a snack.

Thanks Disco4SE. Nice, simple solution that I'll copy.
I did the same with my D3's. Never had an issue with heat - even on a hot Nth Simpson trip.
(I wonder if you fellas considering a in-cabin solution will incl an airtight box with external vent for battery fumes? I don't know if this is necessary but that's how it's done in light aircraft)

Disco4SE, have you had any feedback from your dealer about whether the mod will affect your warranty? I'd be interested to hear whether they likely to be fair in this instance?

Hi Hooroo, there is no reason or legal requirement to externally vert the battery box, even when using a non sealed standard flooded wet cell battery.

Originally Posted by drivesafe

Hi Admiral, my intention is to cater for removable battery boxes for the rear cargo area.

The likelihood that there would be many people using all 7 seats while on a trip is fairly remote so with the rear seats ( actually just one seat ) folded down, a battery box can be secured in the rear cargo area utilising the D4’s tie down anchor points.

This simplifies the requirements of having an auxiliary battery when needed and the cabling installation in the D4 is a snack.

Thanks. I saw the detail on your box on another thread. All we need now is a few pics to see how it all comes together.

Here are some pics of the finished install.

This is the kit. NOTE, the second 120 amp Anderson plug will be pre-assembled on the end of a 1m cable for connecting to a battery box.




This is the pre-assembled main cable.



This is the location of the control module in the Auxiliary Battery Box, on the driver’s side of the engine bay.



This is the 120 amp Anderson plug laying in the cargo area.



This is the 120 amp Anderson plug stowed away in the Jack Compartment



This is the finished and stowed 50 amp Anderson plug at the rear of the D4.

What type of circuit breaker has been used ? It is affected by heat ? ( I guess that is qualified by it's location ) It does not seem to be manually resettable ?

Hi ADMIRAL, I use 50 amp auto resetting type circuit breakers ( CB ).

The CB is mounted in a box to make for an easier installation, no holes to drill, plus being in a box means, like all the rest of the installed kit, there are no exposed positive connections.

The system is capable of handling 90+ amps continuously and by using a 50 amp CB, the CB not only protects the system form short circuits but it also acts as an overload protection device.

When the new battery box is finished, this too will have a CB in the battery supply cable so the whole system is fail safe.

Originally Posted by Hooroo

Thanks Disco4SE. Nice, simple solution that I'll copy.
I did the same with my D3's. Never had an issue with heat - even on a hot Nth Simpson trip.
(I wonder if you fellas considering a in-cabin solution will incl an airtight box with external vent for battery fumes? I don't know if this is necessary but that's how it's done in light aircraft)

Disco4SE, have you had any feedback from your dealer about whether the mod will affect your warranty? I'd be interested to hear whether they likely to be fair in this instance?

Hi Hooroo,
My Landrover dealer doesn't yet know about the second battery. I am still 4,000Klm's away from my first service.
Disco4SE