Originally Posted by canipeb
Wow, I feel like I've taken a Masters course in Class A RVs. I can actually answer most of these questions that were a different language a month ago. Our Ventana LE has most of the options:
Auto Gen Start
8.0 KW Onan Generator
Propane Hot water
Whirlpool 19.7 Refrigerator
2000 Watt Inverter
2 15M Penguin Heat Pump Air Conditioners
Don't know which Magnum Remote I have without going out to look at it.
The fact that you have Auto Gen Start tells me you probably have the ME-RC50 remote.
So, when dry camping...you've got 4 batteries...I am assuming they are 6v Interstate Flooded Lead Acid batteries rated at 232 aH (20 hr rating). They are connected together to give you the equivalent of two big 12v batteries...and 464 aH of battery power. Is is safe to use these batteries and discharge them up to 50% of their rating. So you can run out 232 aH before needing to plug-in/start the generator/ or collect some sunlight thru solar...
You can run static drains, dash radio, entertainment system in standby, microwave clock, etc...for about 24 hrs with the 4 batteries. It will drain faster with lights, and tvs, fans, etc...running.
Airconditioning (except for the King Aire with 16 AGM batteries, and hybrid inverter) has to have shore power or Generator power. If you open your breaker panel...all the stuff to the left of the gap are only powered thru your transfer switch... I.E., Air Conditioner 1 & 2, electric hot water heating elements, induction cooktop (if you have that vs propane stove) Block Heater, Washer and Dryer ( if optioned). The stuff on the short section of panel are powered thru the Inverter. I.E., outlets for tv, residential refrigerator, etc...
You can do two things to help keep up the batteries. Know how to set up the Auto Gen Start to fire up based on Voltage. When the batteries start getting low...the genny will start and run for your prescribed amount of time. The Magnum manual includes some recommendations based on the size of your battery bank (464 aH).
The other thing is to set a failsafe,,, the LBCO. This will switch off the inverter to help preserve what's left of your battery, should the generator not start to charge up the batteries.
If you really enjoy this type of camping...down the road you can look into a few things which will improve your functionality.
1) Battery Monitor Kit (ME-BMK). This acts as a counter to measure everything going in or out of your battery bank. It will express the status as a percentage or "State of Charge". It is far superior just using voltage to gauge the battery charge.
2) Solar Panels and charge controller. These can be programmed...and once set, they just work. Whenever there is sunlight, they will convert that energy into charge potential for your batteries. It will cut down tremendously, how much...if any...generator you will have to use.
3) Adding more batteries. Yup...the more you have, the longer you can go between chargeups. If weight is an issue...there are newer Lithium technologies being used in the RV industry...they last longer, can be discharged more deeply, but come at a price$$$.
4) Upgrade the ME-RC remote to the ME-ARC remote. The "A" is advanced. It gives you a bunch of new menu options. It can trigger your Auto Gen Start based on State of Charge, instead of just voltage. Worth looking into if you've come this far.
As others have stated...the real limitations to dry camping are triggered by need for fresh water...need to dump grey tank, dishwashing, showering, and black tank capacity. If we use our Macerator toilet with full qty flush...the light comes on in 2-3 days. If we use the gravity toilet in our half bath...we've gone 5 days, and it only be 1/3rd full. I don't know if your coach is like mine. But IF it has a gravity toilet in the half bath...you are ahead of the game there. Add an Oxygenics shower head...and learn to take combat showers...use paper plates when able....and you'll quickly stretch out your grey tank usage.
Enjoy your new coach. I am sure you will fall in love with it...and make many happy memories as your journey unfolds.
All the best!