Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-06-2014, 09:24 AM   #1
Rivet Master
 
Alphonse's Avatar

 
2010 28' Flying Cloud
Lower Alabama , USA
Join Date: Mar 2012
Posts: 649
PD 4655 - How long to Float Voltage?

Installed a PD 4655 converter upgrade and two new SRM24 Interstate batteries. I fully charged the batteries before I installed them.

When I energize the converter with shore power, I get the fast blinking light indicating they are at 90% or greater charge and are charging at 13.6 volts. I confirmed the voltage is in that range.

How long will it take the charging system to switch to float/maintenance voltage (13.2 volts)? It is a function of time? If so, does unplugging shore power reset the time/duration?
__________________

__________________
Alan
"If you must choose between two evils, pick the one you never tried before!"

Air #64439
Southeastern Camping Unit WBCCI #5033
TAC AL-8
2017 Canopenian
Alphonse is offline   Reply With Quote
Old 10-06-2014, 10:00 AM   #2
Rivet Master
 
1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
Join Date: Jul 2009
Posts: 4,591
It often takes 24 to 48 hours to reach the float voltage stage, and that assumes good batteries with very little internal leakage and nothing else on in the trailer. And I mean nothing.

I believe that the float voltage is only switched on (the 13.2 volts) when the current level drops to a very small amount, like 40 mA or so. I am not sure of the exact number though. I just went through it with my Argosy (two golf cart batteries in series) and it had not dropped to float at 60 mA but a day later it had gone into the float mode and my meter showed no reading at all, so it was under 10 mA.
__________________

__________________
idroba is offline   Reply With Quote
Old 10-06-2014, 03:38 PM   #3
Rivet Master
Commercial Member
 
New Borockton , Alabama
Join Date: Sep 2002
Posts: 1,288
Images: 21
It is time and voltage based. 30 hours of no voltage demand it will switch to the storage mode and only return to normal mode if there is voltage change (.3 volts) Turning on one light may or may not reset the timer. Several lights would or turning on the water pump for example. The LP and CO detectors normally don't prevent the unit from changing either way. Also, the dusulfation cycle only works in the storage/float mode, every 21 hours for 15 minutes.
__________________
Randy...Converters, Inverters, Trimetric, Surge Protectors, Zamp Solar, AGM Batteries
www.bestconverter.com
68 Overlander is offline   Reply With Quote
Old 10-06-2014, 04:13 PM   #4
Rivet Master
 
1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
Join Date: Jul 2009
Posts: 4,591
Randy has a much better answer than mine.
__________________
idroba is offline   Reply With Quote
Old 10-06-2014, 10:56 PM   #5
Rivet Master
 
Alphonse's Avatar

 
2010 28' Flying Cloud
Lower Alabama , USA
Join Date: Mar 2012
Posts: 649
Quote:
Originally Posted by 68 Overlander View Post
It is time and voltage based. 30 hours of no voltage demand it will switch to the storage mode and only return to normal mode if there is voltage change (.3 volts) Turning on one light may or may not reset the timer. Several lights would or turning on the water pump for example. The LP and CO detectors normally don't prevent the unit from changing either way. Also, the dusulfation cycle only works in the storage/float mode, every 21 hours for 15 minutes.
Thanks for the clarification Randy.
__________________
Alan
"If you must choose between two evils, pick the one you never tried before!"

Air #64439
Southeastern Camping Unit WBCCI #5033
TAC AL-8
2017 Canopenian
Alphonse is offline   Reply With Quote
Old 10-08-2014, 12:10 PM   #6
Rivet Master
 
Alphonse's Avatar

 
2010 28' Flying Cloud
Lower Alabama , USA
Join Date: Mar 2012
Posts: 649
Went by and checked mine at the garage and it was on Float. It had been on the clock for two days.
__________________
Alan
"If you must choose between two evils, pick the one you never tried before!"

Air #64439
Southeastern Camping Unit WBCCI #5033
TAC AL-8
2017 Canopenian
Alphonse is offline   Reply With Quote
Old 10-09-2014, 12:58 AM   #7
Rivet Master
Commercial Member
 
New Borockton , Alabama
Join Date: Sep 2002
Posts: 1,288
Images: 21
Perfect, it probably dropped at 30 hours but you weren't there to see it.
__________________

__________________
Randy...Converters, Inverters, Trimetric, Surge Protectors, Zamp Solar, AGM Batteries
www.bestconverter.com
68 Overlander 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
Replaced a Paralax 7355 with PD 4655 converter Rrroberts40 Electrical - Systems, Generators, Batteries & Solar 79 09-23-2017 01:33 PM
camp-a-float: a concept from 1973 Denis4x4 On The Road... 25 08-08-2014 04:29 PM
First Big Trip, First Time Float Tubers :eek: CaliforniaStreamin On The Road... 14 08-11-2005 03:18 AM
Anyone discover a fuel friendly float setting? IPM Mechanics Corner - Engines, Transmission & More... 18 05-11-2004 12:04 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:31 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.