Hi! We have a 2003 fleetwood discovery. Our house batteries have been very finicky. We pulled them out (4 total), cleaned them and charged them. They worked but only for 5 min or so. We left them on a trickle charge overnight and the same thing happened. We left for a trip and they worked off an on during the 1 hour drive, maxing our at 11 amps or volts. Side note, the generator would not crank before we left or while driving. We were plugged into shore power for 48 hours. Generator cranked, we hit the road and house batteries were at 13 amp. About 20 min into the drive generator turned off and so did house batteries. A few min later house batteries came back in and registered 9-11 amps/bolts. Why won’t they stay on or maintain connection? Carrying to decide if there is an issue with the batteries or if it could be a connection issues somewhere. I have googled a million things and nothing fits our scenario.