Welcome and CONGRATS....
Ah the joys of new ownership :B
Your truck can idle all night and it won't charge the trailer battery very much 9THOSE monitors/indicators are a joke)
The charge line is not big enough....OK for when travel down the road to maintain a battery/slightly charge it (after traveling 6-8hrs)
Your converter (takes AC power and converts it to DC power WHEN plugged in to an AC source) also has a charger section that WILL charge the battery
With a 30A to 15A adapter you can plug in at home to an outlet and power up the convert to charge/maintain trailer battery
Don't have an adapter.....don't have a portable battery charger
Turn truck around and use jumper cables to get battery charge back up BUT forget about trying to run/operate anything until battery is FULLY charged
You really need the 30A to 15A adapter so you can do this at home
Forget about operating fridge until you have good 12V DC power...needs it for the control circuit and propane operation.
Going camping tomorrow AM
Are you going to a campground with electrical power hookup (30A)
IF YES.......pack your food stuff in a ice cooler
Go to CG and plug into the 30A
The convert will charge battery PLUS will give you DC power for lights, all the other 12v DC stuff and control circuit for fridge (turn it ON when you get set up LEVEL---don't operate it off level DON'T DO IT!)
When not hooked up to an AC power source........need a generator/solar to charge battery if used off-grid.
Need 12V DC to operate any propane appliance (except stove/oven) as they require DC for control circuit and gas valve (furnace is ALL DC power)
3 weeks of just sitting--using slides/power awning plus parasitic draw (LP Detector etc.) WILL draw a battery way down.
How close is Walmart? Maybe an ACE Hardware. You need one of these adapters
OR one like this (better)
An remember...don't operate fridge on electric or propane if it is NOT level. Causes damage due to interrupting the gravity flow/cycle and the damage is accumulative and will KILL your fridge over time
