In my 2010 Defender I've moved the original battery tray outboard and forward, this has left heaps of space for another battery, in this case a yellow top Optima. This battery will happily run my 50l Waeco for 2 days, it's now 4 years old and still going strong.
I made up a tray for the Optima, (the battery strap/bar is a non-conductive resin), that mounts the battery as far forward as possible, this allows space for the factory jack. The messy jumble of wires is my, (carefully stowed :whistling: ), winch controller. The battery controller is mounted to the front of the seat box out of the way. The only thing I want to add is a decent set of terminal covers for the aux battery.
https://www.aulro.com/afvb/images/im...2012/02/42.jpg

