Land Rover Defender D300 MY21 Dual Battery Setup

Quick vid of wiring for a secondary batter in a D300 with the MHEV system

THINGS TO NOTE:
- Probably way easier to use a Narva "add a circuit" for the Accessory 12V I had no idea where the fuse box was. Anyone else wondering can check here https://www.ownerinfo.landrover.com/document/3E/2021/T19951/44152_en_GBR/proc/G2395175 this would be WAY quicker than splicing a wire like I did.

It is actually more beneficial to NOT use the wire I did because it turns on any time you open a door. Better to use F16 or F17 fuse which only has power when engine is running.

- You will need a T30 Torx, T40 Torx, allen keys and likely a 3/8" +T40 Torx socket to get the tailgate latch off

If you don't have MHEV you will need to bring wires through from the front battery - someone else posted about that here https://landroverforums.com/forum/2020-defender-60/p300-rear-storage-dual-battery-104302/page3/

Hope this helps someone else thinking about this projects :-D

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