laptop with removeable battery, WiFi and a inverter that can handle the load of laptop power brick an a spare battery. NOTE: once battery is charge remove from laptop and run on inverter power. does RV have an inverter or AC generator
also WiFi Antenna for RV and a good WiFi provider or use public WiFi
Note: USB 2.0 cables can be extended out to a length of 30 meters, or just over 98 feet. USB 3.0 and 3.1 cables, on the other hand, can only be extended to 18 meters (about 59 feet). This assumes that the initial cable is an active cable. If it's not, the maximum length of USB 2.0 drops to 25 meters, or about 82 feet.
best set-up for speed