You can start the Ford engine and it will usually give the house batteries enough boost to start the generator, then take it of for a long drive (or I guess you can park it running) and it will help charge the house batteries via converter plus the switch should remain on. But you will need the Chassis battery to keep the switch turned on for the first 30 min or so (by leaving the engine on of coarse).
I had to do this once when my OEM batteries (that I always checked the water level and never drained past 50%) took a crapper about a year ago.
Watch them closely, I had to replace my OEM batteries the next week... would not hold a charge for even 15 minutes after being plugged in for a week. I Put multi meter on and it would go from like 13.2 to 9.2 quick.
__________________
2017 Axis / 25.4: Big Foot Levelers, Aims 1200 Watt inverter, Ceramic Window Tint, Full River AGM 6V batteries, Front Hellwig Sway bar / Rear Track Arm, Safe T Plus Steering Stabilizer, PD 4655 converter, Hard Wired Surge Guard, WEboost + WiFi Ranger, LED Headlights/Driving lights, TPMS, Surge tank, Tornado flush, Viair Compressor
|