Jwestpro
Explorer
zelatore - so I suspect the net of this is that the Die Hard 31 Plat may indeed fit in the aux location on the driver's side without the worry of height interference since the interference you encountered was in the primary location on the passenger side and jwest didn't have height issues with the 2150 (same as the DH-Plat-31) in the aux location.
Also jwest mentioned the Ody 1350 fits perfect in the primary location with no mods. This is a 95 ah battery vs the 2150's (and DH Plat 31) 100 ah. Seems like this would be the better choice for going into the primary location for most folks as its only a 5 ah difference and especially for those of who have 2 batteries.
I talked with Odyssey and did my own comparisons to come up with the 1350 for primary location as I wanted the most duration out of it for colder temps and accidental things like if the radio were on a lot but the "hunting" lights off feature really makes packing up all day or camping a safer situation for the primary battery. I also chose the Odyssey simply for the expectation that it will survive many nearly full depletion better than other batteries but obviously some are similar in that regard.
I'd have to get some detailed photos but I think you are correct that the 2150 required height mods for the leads. I was very busy with my business at the time so it made a lot more sense to pay the shop to do all of the installations even though we would meet to discuss the plan and they would then implement it and make adjustments as needed during the process. Flying Circus Englich Cars in Durham NC did all the work on this LR3, my 2004 Disco2 (dual batteries, on board air, 2" OME lift, 400w inverter, 6 roof lamp switches, 2 driving lamps, and wiring 3 more 12v sockets) and my 1996 Disco1 (Billstiens, dual battery, driving lamps, 12v sockets)
One of the most subtle but very cool things on the lr3 build was repowering several interior lamps and power sources from the 2nd battery for worry-free camping use. These are the 3rd row reading lamps, 1st and 2nd row outboard reading dome lamps, 3 extra 12v sockets (1 ea side at very rear cargo area on top of the plastic above the little gear hatches and 1 at driver side just below the cup holder for the 3rd row. This is the one I use for the ARB fridge so I can get to it easily in a fully packed vehicle), of the two 12v factory sockets in the front center stack, the left one "12v" is also powered from 2nd battery.
The inverter is off course from 2nd as is the air compressor under the bonnet. I plan to change out the inverter to a higher wattage and higher grade pure sine wave. I changed out all the interior lamps to LED except for 3rd row reading because frankly, the warm oem lamps are nicer for sleeping inside and aren't too bright.
I have not used the roof wiring in several years. It was a premature idea that really came from the D2 days when I actually needed better lighting for driving but the lr3 headlamps are pretty incredible on their own. I would like to set up more of a perimeter layout for the 6 roof outlets and later did that on the D2 with 2 per side actually mounted to the rack towers along the side. It was really nice for camping set up or seeing 360 surroundings with the other 2 at the rear corners. These were on 4 switches I think for various combinations.