Forum Discussion
BFL13
Jun 03, 2019Explorer II
Amazing that a 2007 RV would have one of those old 775s! Anyway, yes, use the PD converter, not the 775.
Battery disconnect switch should remain closed all the time except for a special rare reason. the battery cannot supply the rig 12v with it open, and neither can the converter charge the battery.
The PD needs to be re-wired so it gets 120v input whether on shore power or on generator, so it can supply 12v to the rig even with no battery or with a battery but where the PD does all the work instead of the battery. (12v things will take the 13.x voltage from the converter instead of the 12.x voltage from the battery)
Here is some background on the old 775 and much more info to read in your spare time:
https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/28037139/print/true.cfm
Battery disconnect switch should remain closed all the time except for a special rare reason. the battery cannot supply the rig 12v with it open, and neither can the converter charge the battery.
The PD needs to be re-wired so it gets 120v input whether on shore power or on generator, so it can supply 12v to the rig even with no battery or with a battery but where the PD does all the work instead of the battery. (12v things will take the 13.x voltage from the converter instead of the 12.x voltage from the battery)
Here is some background on the old 775 and much more info to read in your spare time:
https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/28037139/print/true.cfm
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