No, I use the battery disconnect switch whenever the RV is in storage. I've tried opening the house battery compartment, but everything is locked down, and the battery is covered up... so there's not an easy way for me to see the specifications of the battery installed. I guess I could always bring it to the RV repair facility and have them inspect it.
just replaced the house battery with a brandnew Costco size-27 12V marine-deep cycle unit... do they come pre-fully charged? my wife was loading some supplies tonight and it seems the battery went dead after about 30 minutes with just several lights on... is this normal? Ive plugged in the RV's AC cord to our house so it'll charge overnight. How long would it take to charge a depleted battery to full capacity with the stock AC-DC charger?
Also, if you camp with full hookups, would the battery overcharge? if so, should I just use the battery-disconnect switch?
You will probably want to upgrade the converter/charger. The cheap ones they come with will charge at a low rate and it takes a long time to get to full charge. Then when it gets to full charge they overcharge and boil off the water ruining the battery. Most people change to a smart charger like the PD9160. That is a good upgrade to make.
Thanks... looks like Amazon has it for a reasonable price. Is it hard to install?
The stock charger that comes with our RV is a "Parallax Power Converter Model 7345" (45 Amps output). The spec sheet stickered on the unit says that when plugged in to a 120V AC source, it will charge the battery at max output. Approximately how long would it take to fully charge a group27 battery (Costco marine/deepcycle is rated at 115AH I think)?
-edit- found a good guide here for swapping the Parallax unit with a PD9160/9260:
* This post was
edited 06/15/12 10:47am by khaliss *