The van is a VW transporter T5 TDI400 Diesel with a 1100kg payload. 4motion which is VW’s answer to all wheel drive provides much better traction on loose road surfaces. The mid roof raises the inside height to about 1.6 m.
I've used the CTEK D250s Dual with Smartpass which is essentially a DC to DC smart charger that uses an initial VSR pass through to charge at 80 amps. When the battery is near charged the unit will flick over to DC to DC mode to achieve maximum charge.
The custom made antenna mast folds up quickly. It houses a directional Uhf TV antenna and a omnidirectional cellular antenna. This connects to a 4g modem inside which greatly improves wireless internet range and speed.