Forum

Notifications
Clear all

Battery Charg

25 Posts
3 Users
0 Reactions
3,123 Views
Jim
 Jim
(@j_a_wolfe)
Posts: 10846
Member
Topic starter
 

OK, the 1000 watt inverter used in some of the RWs, like our '16MB is more than enough for the fridge as it only draws approx an amp when running on AC and 11 amps from the batteries when running on the inverter.
I currently have a Dometic Portable Freezer in the Basement that I've wired into the inverter and still have plenty of juice left. Again, our inverter, the Magnum model has a built in transfer switch, so once it detects shore power it passes it to the fridge and puts the inverter section into standby and turns on the charger section. Both it and the Progressive seems to get alone just fine.

 
Posted : July 19, 2018 9:06 PM
Jim
 Jim
(@j_a_wolfe)
Posts: 10846
Member
Topic starter
 

Hummm....That's interesting. What kind of refrigerator are you operating? A typical residential unit pulls no less than 6 amps. Most run about 8-10. Some larger models pull 15-16. If you are running a propane unit, I could see less.

 
Posted : July 19, 2018 9:26 PM
Jim
 Jim
(@j_a_wolfe)
Posts: 10846
Member
Topic starter
 

Yes you can turn the inverter off and the refrigerator still operates on shore power. I stand corrected on the wattage it is indeed 1000 watts. It's a Magnum Energy CSW1012 Pure Sine Wave Inverter. The transfer switch is a Magnum Dimensions CSW-TS15-HM 15 amp transfer switch. I attached pictures. The inverter is installed in the battery bay upside down on the ceiling (hence the upside down picture). My residential refrigerator is a Whirlpool GI0FSAXVY012. The label says 115VAC/60Hz 10.00 A

 
Posted : July 19, 2018 9:51 PM
Jim
 Jim
(@j_a_wolfe)
Posts: 10846
Member
Topic starter
 

That's about right...

10A x 120V = 1200 watts

Seems that if you have a 1000W Inverter, you may need to plan for a new one in the future. The heat will be detrimental. You might even blow a fuse at some point.

Luckily, the refrigerator runs in cycles and you seem to be on shore power.

If your voltage drops, the amps go even higher. That will mean more watts. Right now, we are averaging 108V to 113V. Our A/C units work harder as a result.

If the inverter kicks in, voltage losses are worse.

For a 10A refrigerator and a voltage loss of 12V or so, you'll probably run 1300 Watts or more.

You might consider a 2000W pure sine Inverter to run the fridge and watch TV...

 
Posted : July 19, 2018 10:31 PM
Jim
 Jim
(@j_a_wolfe)
Posts: 10846
Member
Topic starter
 

Sounds like mhs4771 have the same setup. I’m not gonna get overly excited about the inverter being undersized since I am currently on shore power 99.9% of the time and he’s correct that the inverter goes into standby or I can even turn it off without it shutting off my frig.

I did have a 2000 watt Xantrex Freedom in my old National class A that ran everything and didn’t give me an iota of trouble but I should probably focus on increasing battery capacity first. It’s always a project!!!

 
Posted : July 20, 2018 10:13 AM
Jim
 Jim
(@j_a_wolfe)
Posts: 10846
Member
Topic starter
 

By the way to the original poster in this thread Dave I hope you got all your questions answered. We kinda hijacked your thread and I’m sorry.

 
Posted : July 20, 2018 10:16 AM
Jim
 Jim
(@j_a_wolfe)
Posts: 10846
Member
Topic starter
 

I enjoy reading all of this and I learn new things...Thanks for the hijacked thread.

 
Posted : July 21, 2018 5:04 AM
Danny_and_Linda
(@danny_and_linda)
Posts: 884
Prominent Member
 

I don't have this in my 2012 RW

Sorry Dave, missed this.
You don't have what? The disconnect? If that's what you're asking, it's a large red knob/button looking thing in the front compartment near the batteries. If you don't have one the previous owner has done some creative wiring or the factory fumbled the ball on yours.

Travelin' Texans
Former '13 FB owner
Currently rvless!!

 
Posted : July 21, 2018 12:21 PM
Jim
 Jim
(@j_a_wolfe)
Posts: 10846
Member
Topic starter
 

I don't have the super charge button inside my fuse box.

 
Posted : July 21, 2018 2:39 PM
Jim
 Jim
(@j_a_wolfe)
Posts: 10846
Member
Topic starter
 

Use a flashlight. The model will be inside the panel. Probably not the cover side but the inner panel cover. We'll find it from there.

 
Posted : July 21, 2018 10:03 PM
Page 2 / 2
Share: