Battery relocated, room for 2 LP tanks

Shunyun

Just wanted to share my first mod to my 21 T@B 320 BD.  I installed a Battleborn 100AH and PD 9130-L controller. The battery is 12.75” long, which I think is group 27, so I had to get another box. However, instead of a type 27 I got a type 31 and only used the top: that allowed me to fit the battery in sideways and make a sort of storage area on top, which in turn made room to include a second LP tank. 

fischertech

I'm over here south of you in PQ near Black Mtn.  I'm curious how you would do this on a non solar ready TAB 2018 but use both the AGM and lithium?