Thor Forums

[Beau388]

Originally Posted by Machinetools1

If wat hi g TV I slowly start loosing voltage to the house batteries

If you are running the generator, the inverter will activate the bypass relay. This circuit will bypass the inverter entirely. The inverter's display will read the charging current from your charger going to the house batteries. With the shore power disconnected and the generator off, you will read the actual battery voltage. The inverter battery cable is separate from the battery cable going to the power center, so it is not usually effected by the master power switch. If you are totally on battery power (not generator or shore power), the battery voltage will gradually decay due to self-discharge and parasitic draw by the propane detector and other items not wired to the 12 volt fuse panel. Using the inverter to supply 120 volt for the coach's TVs, outside frig and electrics cabinet plus the 12 volts to the antenna will draw down the stock batteries to 11.9 volts in about 4 hours. The Thor MC installed batteries usually will only last for two years due to the abuse the receive from the selling dealer.