Reply
 
Thread Tools Display Modes
Old 02-13-2019, 06:18 PM   #1
Junior Member
 
Join Date: Dec 2017
Posts: 4
Need help with inverter size

I plan to boondock in my small RV. Right now I do not have an inverter but I plan to install a small one to allow me to use my 30 inch TV and my Dish Satellite system (antenna and Wally) at night. Question: How many inverter watts do I need to support these two items? I will not use the microwave or any other 120v appliances. How much battery power would I need if we use the TV for 3-4 hours per day and we charge the batteries using our 4000 watts generator and a 200 watt portable solar system? Your help and comments are welcome!
__________________

RVPhD is offline   Reply With Quote
Old 02-14-2019, 08:34 AM   #2
Junior Member
 
Join Date: Dec 2017
Posts: 4
Size of electrical system to boondock

I plan to boondock in my small RV. Right now I do not have an inverter but I plan to install a small one to allow me to use my 30 inch TV and my Dish Satellite system (antenna and Wally) at night. Question: How many inverter watts do I need to support these two items? I will not use the microwave or any other 120v appliances. How much battery power would I need if we use the TV for 3-4 hours per day and we charge the batteries using our 4000 watts generator and a 200 watt portable solar system? Your help and comments are welcome!
__________________

RVPhD is offline   Reply With Quote
Old 02-14-2019, 09:11 AM   #3
western NC mountains!
 
formerFR's Avatar
 
Join Date: Jan 2017
Location: western NC mountains!
Posts: 1,612
1,000w inverter, or a simple 1,000 'power inverter' found at most W*mt battery section or any auto parts store would certainly suffice...easily.

a TV and receiver are only going to be pulling about 2-3 amps each, at most, so 6amps total on the high end...which equates to 6ampx120v = 720watts

they even have several 750watt power inverters to choose from...
I've done it many times with ours, even with a fan also plugged in.
__________________

The Turners
'14 Thor Palazzo 33.3 diesel
KingTailgater2 Dish, 200w/10amps mobile SOLAR
90,000+mi, US, Alaska, Canada, western NC for now : )
formerFR is offline   Reply With Quote
Old 02-14-2019, 09:20 AM   #4
Senior Member
 
Join Date: Nov 2017
Location: Dayton Ohio
Posts: 462
Find the wattage required on both units. On the literature.

Add them together. About 75 watts

The small inverters that plug into a 12 volt plug would be enough. I would think about a better unit wired in. More efficient. You could run higher need units if necessary. Drills vacuum cleaner. DVD.

Total wattage divided by 12.5 will give amps used per hour. Then look at the available amps in the battery. One 12 volt is typically 50. So about 10 hours or so.
tomkatb is offline   Reply With Quote
Old 02-14-2019, 09:51 AM   #5
Junior Old Fart
 
Join Date: Jul 2018
Posts: 59
A 350 watt inverter will give you ~3 amps on 120 VAC.
Make sure you get one with low battery shutdown, and install a fuse on the battery power leads.
LTDunltd is offline   Reply With Quote
Old 02-14-2019, 10:16 AM   #6
Senior Member
 
cavie's Avatar
 
Join Date: Apr 2016
Location: Port Charlotte Fl/Hinsdale Ma
Posts: 3,347
for the inverter all you need to do is add up the wattage of the things you want to plug in and use at the same time. It will be listed on a tag or printed on the unit. go bigger than you think you need. Wife will love you if she can use her hair dryer!!
__________________
2002 27rk Wildcat 5er.
Port Charlotte Fl/Hinsdale Ma
Retired Master Electrician.

I know you believe that you understand what you think I said but I'm sure you realize that what you heard is not what I meant
cavie is online now   Reply With Quote
Old 02-14-2019, 10:38 AM   #7
Head Rambler
 
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 5,996
You don't say which RV you have so we don't know how many batteries you can fit on it, but I would recommend getting as many, and as large as you can fit.

If I were serious about boondocking, I'd personally install 2,000 watt inverter, and maybe larger.
__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
Bama Rambler is offline   Reply With Quote
Old 02-14-2019, 03:27 PM   #8
Junior Member
 
Join Date: Dec 2017
Posts: 4
Quote:
Originally Posted by Bama Rambler View Post
You don't say which RV you have so we don't know how many batteries you can fit on it, but I would recommend getting as many, and as large as you can fit.

If I were serious about boondocking, I'd personally install 2,000 watt inverter, and maybe larger.
I have room for two car-sized batteries. Thanks for your reply!
RVPhD is offline   Reply With Quote
Old 02-14-2019, 03:34 PM   #9
Senior Member
 
Join Date: Jul 2017
Posts: 892
need to find out what the wally receiver and dish use . the receivers are more then you might think . my guess is an 800watt inverter will be more then enough
MR.M is offline   Reply With Quote
Old 02-14-2019, 03:39 PM   #10
Senior Member
 
Join Date: Jul 2017
Location: North of Seattle, WA
Posts: 3,108
Take a look at the Bestek True Sine Wave inverter they offer in 300 watt size. Amazon has them. While a cheaper MSW will work, you might end up with "noise" in sound and unsteady picture on TV.

The 300 W True Sine Wave unit sells between $25 and $29 online (Walmart, Amazon, etc).
__________________

__________________
I have it on my dog's authority that an afternoon nap is acceptable.

Politically Incorrect since 1943

2018 Flagstaff Micro Lite 25BDS
2004 Nissan Titan
TitanMike is offline   Reply With Quote
Reply

Tags
electric, electrical, inverter

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Featured Campgrounds

Reviews provided by


Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 06:39 PM.