Solar panel

This lithium battery :

10.4 x 5.5 x 4.5 inches

It might fit under the back seat, put in the inverter, custom rig a plug/USB ports in the panel so hopefully u never need to deal with it and it out of the way of the cargo space/passengers, out of the view of prying eyes.

I've contacted someone about dealing with the solar panel and still having the roof rack/cargo box option.

This battery looks cool!

10.5 X 10.5 X 2.5 inches

Go Battery-12v-100ah-military-lithium-ultra-deep-cycle-battery-mobile LIPO

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bluetooth lithium :
lifepo4 battery 12v 200ah with bluetooth, lifepo4 battery 12v 200ah with bluetooth Suppliers and Manufacturers at Alibaba.com

 

MOBILE – Ubiquitous Energy, Inc.

 

Its not what I want to accomplish but here are some suction cup solar usb chargers