For those with battery probelms: you have dead batteries. I had issues for almost a year, after talking with Harris, the OE provider, I was told Thor uses inadequate battery system charger and most rigs leave the dealer lots in bad shape. Now, it could be Harris had an issue with a production of batteries, but they would not warranty mine because of this so called problem with Thor. I had bought and extra coach battery after 6 months because when we dry camped the battery overnight would barely start the generator. After having 2 batteries it still sucked almost 60% power out of them daily. Bottom line the OE battery was bad and had killed my new extra one. The extra one was warranty but the OE no, Harris would not warranty and the dealer, Camping World certainly was not getting involved and charged me $85 for testing the system, which I thought was under warranty. anyway now have 2 fresh grp 27 Walmart deep cycle and no more battery problems. 12.7 v is 100% charged, overnight dry camping with 2 battery it goes down to 12.45 -12.5 which is 85-90%. I also got a 100w solar panel to use when camping. You should note to turn off the TV cable switch as it uses 12v power when camping. You can kind of add up the Amp hrs used and figure it out from there what normal discharge is. Most coach batteries are about 100 Amp hrs. The fridge, radio( even not in use) smoke alarm, Co2 Alarm all have a constant drain on it. Then lights, water pump, charging your cell phone, etc. It all adds up. I never had trouble with the chassis battery.
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