12 Volt Refrigerator Run Time on Battery

[Liz16FQ]

I am going old fashion with block ice in the crisper!

[Liz16FQ]

I have a new 2021 Wolf Pup 16FQ. After reading all the posts above late last night I discovered that our new fridge has a Battery Setting Switch inside top center of fridge part.

It has a Fast Cool Setting that uses a lot of power to cool on this cycle. It automatically shuts off after 30 hours, per mfg.
This is where mine was set. 17 hours = fridge powered down

So I set mine at the 4 setting, (a level for fridge to shut off per battery power available, 11V) then I charged the battery with power cord all night.
I have the cooling temperature inside set as Normal Range, right in the middle.

Now I am going to test the timing on the fridge with no outside power to the trailer.
It is being tested with no other draw on the solar system.
I have the Solar Panel that came with my 16FQ, upgraded from 1 - 12V battery to 2 - 6V batteries before I left the dealership. I was told I went from +-100mAh to a +-450mAh battery pack.

I will be back to keep you posted.

[NJKris]

Anything motorized (compressor) or heat producing (ex: CPAP with heated hose/humidifier switched on) will run down batteries REAL quick, they are energy hogs. This recent move to 12v DC fridges mystifies me. I thought it was because MFR's can't get propane fridges. I'm sure the pendulum will swing back to propane fridges when mfr's get sick of hearing complaints about them.

[nomad297]

Originally Posted by NJKris

Anything motorized (compressor) or heat producing (ex: CPAP with heated hose/humidifier switched on) will run down batteries REAL quick, they are energy hogs. This recent move to 12v DC fridges mystifies me. I thought it was because MFR's can't get propane fridges. I'm sure the pendulum will swing back to propane fridges when mfr's get sick of hearing complaints about them.

You are exactly right!

Bruce

[Chuck_S]

450mAh battery pack

I'm sure you meant 450Ah, not mAh (which is milliamphours something in the AA battery range). But I'd love to see what batteries you're using.

Forget the amphour rating as it's over stated for normal use unless you plan to draw them down to nothing every time. I prefer to use Useful Amphours which is the Reserve Capacity divided by 2.4. UAh = RC/2.4. This gives a pretty realistic expectation of what you can actually use i.e. -- useful amphours.

What's the listed RC of these batteries?

-- Chuck

[tomkatb]

Actually, likely you have 230 ah with two six volt batteries. A common error. 115 available.

When in series you do not add the amps. Each battery is 230 ah at 6 volts, not 12.

A standard larger 12 volt battery is typically 100AH. 50 available. Two in parrallel is 200 ah or 100 ah available.