Ran ours inside the D4, behind the trims,once through the firewall,its not difficult to do.
All hidden and out of the way.
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I'm in total agreement with the "let's-go-light" idea. My current Defender can afford to have stuff bolted up to it. The new one will be frugal. So 12kg of 100aH Lithium Battery won't be an issue given that one of the travelling luxuries is running a fridge. A winch hasn't factored in my calculations either mass or resale.
Big discussion on FB group, but this is where it got to with the guy doing a ytube post of using the mild hybrid connections to connect a portable battery to the defender battery
Dual Battery Wiring Landrover Defender D300 MY22 - YouTube
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