This may or may not relevant to your conversation...however, I am throwing in this bit of information.
When we were on the road with our truck pulling the toyhauler, we bought an
Energizer 4 port usb charger with a 110 outlet...(inverter) which fit in our cup holder and plugged into the cig. lighter. We still carry it in the truck and brought it along in the motorhome as a backup. It works very well.
Works off the chassis battery, being up front. Very versatile.
Energizer (EN180) 12V 180W Cup Inverter
bought it on Amazon $27
**in addition..I see scrubjaysnest, sez his charging station will not charge his tablet...our station charges phones and iPad with NO problem.
Ron & Kay n KC too !
2016 Axis 24.1 E-450 6 spd.
'KC's Big Box'
Jeep Wrangler TJ
or 6x10 enclosed motorcycle trailer