I have two CONVERTERs on my OFF-ROAD POPUP. The original WF8945 Converter/charger is located in the bottom compartment of the WFCO Series 8900 Power Distribution Panel where all of my 120VAC Circuit breakers and 12VDC Fuses are located and is run from the SECOND DOWN 120VAC BREAKER in that panel. The FIRST BREAKER being my 30AMP SHORE POWER MAIN BREAKER.
To 'TURN-OFF' this converter/charger unit I just flip the Circuit Breaker labeled CONV to its 'OFF' position.
My SECOND CONVERTER/CHARGER is a PD9260C 60AMP model that I installed as close to the BATTERY BANK as I could. I also installed a separate 120VAC Circuit from a empty 120VAC Circuit Breaker Slot in the Power Distribution Panel. I simply flip this 120VAC 20AMP Circuit Breaker to 'TURN OFF' this smart mode PD9260C 60AMP Converter/charger unit...
If you want to run your whole trailer from an INVERTER direct connected to your BATTERY BANK please NOTE it will want to draw a whole lot of DC CURRENT. My 1500WATTS PSW AIM Inverter is fused at 175AMPS fed by the battery bank. A 2000WATT Inverter should be fused around 200AMPS. This is alot of DC POWER being drained from a BATTERY BANK. You can look up your battery specs and see how long they produce 12VDC at 25AMP and go by those numbers. This spec is based on the battery going to a full discharge state state so you don't want to do that and have to use HALF of the number listed in minutes which will be around the 50% discharge state of the battery. i.e. two 6VDC Golf Cart Batteries are speced at around 440minutes (appx 7 hours time) of producing 12VDC @ 25AMP... You can only use this setup for half that number or around three hours to keep these two 6VDC Batteries wired in SERIES only discharged to their 50% charge state.
My 255AH BATTERY BANK will produce 25AMPs of 12.3VDC power for around 4-5 hours before draining me down to the 50% charge state. A single 12VDC battery would probably only last around 15 minutes or so pulling a 175AMP DC Load...
Much to consider here to make this work out for you...
In my case my three standard issue GP24 85AH Interstate Batteries will operate my roughly 20-22AMP Battery load from 6PM to 11PM including my 1AMP or so of parasitic drain that is always there for 24 hours before dropping my battery bank to its 50% Charge state. I have this planned out to happen around 8AM each morning so that I can run my smart mode converter/charger from my 2KW Generator connection for a quick return to the 90% charge state in as little as three hours time. Then I am good again for the next day/night run off my batteries when camping off the power grid. This of course does not include running the air conditioner or high powered microwave unit etc. When the Propane Heater 6AMP 12VDC blower is required to run OFF and ON all night the picture changes drastically. We usually don't get in the situation where we have to use the PROPANE HEATER setup...
My 20-22AMP DC LOAD is representative to only around 270WATTS or so of battery drain. I make my COFFEE for the day when I am running my generator starting around 8AM each morning...
What you are wanting to do can be done just realize it will take a VERY BIG battery bank and will require some big time planning on what you can live with DC POWER WISE during the ONE DAY/ONE NIGHT run off the batteries...
My thoughts on being SUCCESSFUL camping off the power grid... We found out real quick you just can't show up with a couple of batteries and make it work. Alarms start going off around 10PM (and earlier) and then it gets dark on you...
Thats no fun for the wife hehe...
Roy Ken
