Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-21-2007, 07:35 AM   #1
Rivet Master
 
1979 31' Excella 500
Detroit Area , Michigan
Join Date: Jul 2004
Posts: 498
Images: 43
Anybody know how many watts an old Univolt would draw (circa 1979 31' International?)

I'm wondering because I'm replacing with a 60A Intellipower that draws 1000 Watts on the input side. Wondering how they compare.
__________________

__________________
wacnstac is offline   Reply With Quote
Old 04-21-2007, 08:16 AM   #2
Moderator Emeritus
 
Pick's Avatar
 
1972 31' Sovereign
High Springs , Florida
Join Date: May 2002
Posts: 2,310
Images: 36
Send a message via AIM to Pick
Probably about the same or more. The old Univolts used a ferro resonant transformer, and they generate a lot of heat, which equates to wasted energy. Intellipowers use solid state switching technology which is more efficient.
__________________

__________________
ARS WA8ZYT
2003 GMC 2500HD 4X4 D/A Ext. Cab
Propane Powered Honda EU2000i
Lots of Hot Sauce!
Air # 283
WBCCI 1350
Pick is offline   Reply With Quote
Old 04-21-2007, 08:17 AM   #3
Rivet Master
 
HowieE's Avatar
 
1991 34' Excella
Princeton , New Jersey
Join Date: Aug 2003
Posts: 6,812
Images: 12
60 amps seams like a bit of over kill. What are you using at 12 volts that requires that kind of power?
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

HowieE is offline   Reply With Quote
Old 04-21-2007, 05:43 PM   #4
Rivet Master
 
1979 31' Excella 500
Detroit Area , Michigan
Join Date: Jul 2004
Posts: 498
Images: 43
I invertor is bought and paid for. Didn't want to be underpowered As an afterthought, I was worried that my requirements to power the invertor are going to be a lot more than the old one and I do boondock continously.
__________________
wacnstac is offline   Reply With Quote
Old 04-21-2007, 08:31 PM   #5
Rivet Master
Commercial Member
 
lewster's Avatar
 
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,279
Quote:
Originally Posted by wacnstac
I invertor is bought and paid for. Didn't want to be underpowered As an afterthought, I was worried that my requirements to power the invertor are going to be a lot more than the old one and I do boondock continously.
Is that an 'inverter' or a 'converter'? Two very different animals.
__________________
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
lewster is offline   Reply With Quote
Old 04-21-2007, 08:53 PM   #6
Rivet Master
 
1979 31' Excella 500
Detroit Area , Michigan
Join Date: Jul 2004
Posts: 498
Images: 43
Sorry meant to say convertor. So does anybody have an answer? I suppose when I pull the old one out it might be stamped somewhere with how many watts it draws. Perhaps the 60A might charge a drained battery a little faster which is good for me as this means less generator run time.
__________________
wacnstac is offline   Reply With Quote
Old 04-21-2007, 09:19 PM   #7
Site Team
 
, Minnesota
Join Date: Aug 2003
Posts: 6,940
Images: 59
The 60A charge rate is fine if you have an AGM battery. Might be OK if you have two wet cells.

I wouldn't use that high a rate if you have a gel battery.
__________________
markdoane is offline   Reply With Quote
Old 04-22-2007, 07:21 AM   #8
Rivet Master
Commercial Member
 
lewster's Avatar
 
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,279
The higher amperage units will re-charge yuor batteries faster, but it's the voltage that's most important with the different types of batteries. I don't have the exact numbers off the top of my head, but a gel requires the lowest charge voltages, with wet cell in the middle and AGM needing the highest.

I would assume that most converters and battery chargers will provide a 'safe' voltage output so as not to ruin a battery with excessive charging voltage. There is a 'new breed' of charger where you select the type of battery during set-up, and this pre-determines the charging voltages used.

AGMs like to be charged at their higher recommended voltage (per Lifeline's website) in order to acieve maximum battery life.
__________________
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
lewster is offline   Reply With Quote
Old 04-22-2007, 10:38 AM   #9
Rivet Master
 
1979 31' Excella 500
Detroit Area , Michigan
Join Date: Jul 2004
Posts: 498
Images: 43
I have a Lifeline AGM.
__________________
wacnstac is offline   Reply With Quote
Old 04-22-2007, 11:17 AM   #10
4 Rivet Member
 
Pacerized's Avatar
 
1981 25' Excella II
Dillon , Colorado
Join Date: Jul 2006
Posts: 397
Images: 11
I can't recall which thread, but someone on here did a comparison of the draw from his univolt to his inteli charger before, and after. He said the univolt put out between 5-6 amps, but never less then 5. By comparison the inteli charger went down to .6 after the batteries were charged. I don't know how that would relate to the W draw, but I would think it would be less.
Charlie
__________________
Pacerized is offline   Reply With Quote
Old 04-22-2007, 07:10 PM   #11
Rivet Master
Commercial Member
 
lewster's Avatar
 
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,279
Quote:
Originally Posted by wacnstac
I have a Lifeline AGM.
Me too! Two GPL-4C 6VDC golf cart batteries replaced the 2 Interstate Group 24's. I switched out the Parrallax converter that came with the trailer to a WFCO 3-stage 55 amp unit. No problems to date.......but the real test is coming up in July when I'll be full-timing in the CCD for 3+ months!

I'll keep you posted..............................
__________________

__________________
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
lewster is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Univolt FACTS smily Electrical - Systems, Generators, Batteries & Solar 69 08-19-2005 12:47 AM
1981 Airstream Excella Univolt dienst1 Airstream Motorhome Forums 1 08-20-2002 10:05 AM
Bad Univolt? pebblepoint Batteries, Univolts, Converters & Inverters 1 07-14-2002 11:08 PM
univolt III wiring McGill Electrical - Systems, Generators, Batteries & Solar 0 07-05-2002 09:26 PM
Univolt Operation melprice Electrical - Systems, Generators, Batteries & Solar 11 06-17-2002 05:13 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:49 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.