Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-02-2013, 03:16 AM   #1
Weekend Camper
 
JW &CW's Avatar
 
Join Date: May 2013
Location: Arizona
Posts: 23


We're gong boondocking at a Colorado State Park. Quiet hours are from 10:00pm - 6:00am, so we will not be able to use our generators after 10.

If we want to use ourAC could we use the battery power, and if so, how long should they last?

Thanks,

JW &CW
JW &CW is offline   Reply With Quote
Old 07-02-2013, 03:29 AM   #2
Seasonal Camper
 
Join Date: Feb 2005
Location: Mid-Missouri
Posts: 450


Simple answer is NO. The AC requires 120 volt, alternating current (60 cycles per second) at about 15 to 10 amperes. and your batteries put out 12 volt direct current.

An inverter will convert 12 volts DC to 120 volts AC however standard batteries do not have the current capacity to supply the necessary power.

From high school science class, Ohms law is I=E/R where I=current, E=volts, and R=Resistance.
For this problem the resistance doesn't change.

So 15 amps AC requires about 10 times the current from the battery or 150 amps. It would actually require more due to losses in the system.

For most folks this is cost prohibitive to buy the batteries and inverter capable of running the AC.

Hope this helps.
__________________
2016 Duramax - 2010 CF30SKP

Viet Nam Vet 70-71 Da Nang

Real airplanes have two wings and big, round, engines
BipeFlier is offline   Reply With Quote
Old 07-02-2013, 03:37 AM   #3
Weekend Camper
 
JW &CW's Avatar
 
Join Date: May 2013
Location: Arizona
Posts: 23


Seems like your memory of high school is much better than mine.

Your answer is what I thought it would be, but you were more articulate.

Thanks and safe travels!

JW &CW
JW &CW is offline   Reply With Quote
Old 07-02-2013, 07:38 AM   #4
Family Vacation Member
 
NH Horseman's Avatar
 
Join Date: Oct 2011
Location: Hollis, NH
Posts: 235
FYI, to remember that formula, use this:
Twinkle twinkle little star
E equals I times R
__________________
Jim.B - - NH State Rep - - ZT25SB Zinger (2016 GMC 1500)

https://www.nhwheelers.com/pictures/zinger.jpg
NH Horseman is offline   Reply With Quote
Old 07-02-2013, 01:11 PM   #5
Seasonal Camper
 
Join Date: Feb 2005
Location: Mid-Missouri
Posts: 450
Quote:
Originally Posted by JW &CW
Seems like your memory of high school is much better than mine.








That is because I've been using it for 45 years!!! LOL
__________________
2016 Duramax - 2010 CF30SKP

Viet Nam Vet 70-71 Da Nang

Real airplanes have two wings and big, round, engines
BipeFlier is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Crossroads RV or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 11:36 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×