Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-13-2022, 07:52 AM   #41
Half a Rivet Short
 
2017 30' Classic
2022 Interstate 24X
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 14,938
Hi

A Trojan T105 is a *very* different battery than the typical Interstate version. It's a different plate chemistry and the Trojan data sheet very specifically says to charge it at a much higher set of voltages than anything you would see on the typical flooded RV battery. It's very much an oddball battery.

Bob
uncle_bob is offline   Reply With Quote
Old 11-13-2022, 08:51 AM   #42
Site Team
 
richard5933's Avatar

 
1994 25' Excella
Waukesha , Wisconsin
Join Date: Sep 2020
Posts: 4,331
Images: 5
Quote:
Originally Posted by uncle_bob View Post
Hi

A Trojan T105 is a *very* different battery than the typical Interstate version. It's a different plate chemistry and the Trojan data sheet very specifically says to charge it at a much higher set of voltages than anything you would see on the typical flooded RV battery. It's very much an oddball battery.

Bob
Not sure why this is controversial here.. Read the spec sheet for Trojan batteries, and you'll see that the float voltage is the same. The Progressive Dynamics converter puts out 13.2v for float.

Please tell us how you are calculating 13.2v to be a higher voltage?
__________________
Richard
11018
1994 Excella 25 Follow the build on Gertie!
1999 Suburban LS 2500 w/7.4L V8
1974 GMC 4108a - Custom Coach Land Cruiser (Sold)
richard5933 is offline   Reply With Quote
Old 11-13-2022, 08:55 AM   #43
Rivet Master
 
gypsydad's Avatar
 
2017 28' Flying Cloud
2014 25' FB Flying Cloud
2008 25' Safari FB SE
Georgetown (winter)Thayne (summer) , Texas & Wyoming
Join Date: Jan 2007
Posts: 5,710
Quote:
Originally Posted by uncle_bob View Post
Hi

A Trojan T105 is a *very* different battery than the typical Interstate version. It's a different plate chemistry and the Trojan data sheet very specifically says to charge it at a much higher set of voltages than anything you would see on the typical flooded RV battery. It's very much an oddball battery.

Bob
The Boondocker converter smart charger technology, like the Progressive Dynamics model, provides the right combination of bulk charge to the batteries, including the T105's. Are you saying these batteries do not work well with these 2 brands of multistage chargers? I know some AS dealers will/do install the T105's as an "option". I remember after I moved to the Boondocker, my friend got the Progressive Dynamics 4 stage converter and also had the T105's installed in his "new" at the time, 2017, 23'FC by the dealer; neither of us have had any issues.
__________________
Empty Nesters; Gypsies on the road!
2017 28' Twin Flying Cloud
2017 F250 King Ranch, 4X4, 6.7L, Blue-Ox WDH
Summer-Star Valley Ranch RV Resort (Thayne, WY); Winter-Sun City (Georgetown,TX)
gypsydad is offline   Reply With Quote
Old 11-14-2022, 07:05 AM   #44
Half a Rivet Short
 
2017 30' Classic
2022 Interstate 24X
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 14,938
Hi

First off, you need to read the full T105 support package. They get into a lot of interesting charging details in it. They take the batteries to much higher voltages than typical and use different alloys in the plates.

The main point it about the older converters somehow drying out batteries even though it happens at high voltages. The converters from 10 years back simply never ever put those sorts of voltages on batteries. The new multistage stuff does.

Bob
uncle_bob is offline   Reply With Quote
Old 11-14-2022, 08:37 AM   #45
Site Team
 
richard5933's Avatar

 
1994 25' Excella
Waukesha , Wisconsin
Join Date: Sep 2020
Posts: 4,331
Images: 5
Quote:
Originally Posted by uncle_bob View Post
Hi

First off, you need to read the full T105 support package. They get into a lot of interesting charging details in it. They take the batteries to much higher voltages than typical and use different alloys in the plates.

The main point it about the older converters somehow drying out batteries even though it happens at high voltages. The converters from 10 years back simply never ever put those sorts of voltages on batteries. The new multistage stuff does.

Bob
Just checked the Trojan User Manual (long version) and it shows an absorption voltage of 14.7 and a float voltage of 13.5 so I'm not sure how a modern converter is putting out more than this. Then checked the manual for the Progressive Dynamics converter/charger designed for flooded cell batteries, and the absorption voltage is 14.4 and the float is 13.2, both being below the max in the Trojan manual.

These number match what I saw in the real world - the Progress Dynamics was very good at holding a steady voltage at the correct level.

What am I missing from your understanding that the modern stuff is putting out voltage higher than is recommended for batteries? It almost sounds like you're confusing the older single-stage converters that only the higher output voltage with the newer ones that go to a float voltage specifically to avoid damaging batteries.
__________________
Richard
11018
1994 Excella 25 Follow the build on Gertie!
1999 Suburban LS 2500 w/7.4L V8
1974 GMC 4108a - Custom Coach Land Cruiser (Sold)
richard5933 is offline   Reply With Quote
Old 11-14-2022, 10:12 AM   #46
Rivet Master
 
gypsydad's Avatar
 
2017 28' Flying Cloud
2014 25' FB Flying Cloud
2008 25' Safari FB SE
Georgetown (winter)Thayne (summer) , Texas & Wyoming
Join Date: Jan 2007
Posts: 5,710
Quote:
Originally Posted by richard5933 View Post
Just checked the Trojan User Manual (long version) and it shows an absorption voltage of 14.7 and a float voltage of 13.5 so I'm not sure how a modern converter is putting out more than this. Then checked the manual for the Progressive Dynamics converter/charger designed for flooded cell batteries, and the absorption voltage is 14.4 and the float is 13.2, both being below the max in the Trojan manual.

These number match what I saw in the real world - the Progress Dynamics was very good at holding a steady voltage at the correct level.

What am I missing from your understanding that the modern stuff is putting out voltage higher than is recommended for batteries? It almost sounds like you're confusing the older single-stage converters that only the higher output voltage with the newer ones that go to a float voltage specifically to avoid damaging batteries.
Thats what I was thinking UB was suggesting also. AS started including 3 stage converters in 2018 as I recall...haven't seen any real battery/converter issues on here in a long time.
__________________
Empty Nesters; Gypsies on the road!
2017 28' Twin Flying Cloud
2017 F250 King Ranch, 4X4, 6.7L, Blue-Ox WDH
Summer-Star Valley Ranch RV Resort (Thayne, WY); Winter-Sun City (Georgetown,TX)
gypsydad 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
New SRM batteries do not appear to be charging CanoninD 2011 - 2015 International 3 09-23-2018 12:19 PM
Cold weather suitability of Interstate SRM-24 randmscooter Full-Timing, Winter Living & Workamping 8 11-04-2017 01:09 PM
Options for interstate battery replacement? cstevecook Airstream Trailer Forums 7 09-23-2017 01:07 PM
Batteries: 2013 Internation 19, Interstate SRM-24 both dead Tao Electrical - Systems, Generators, Batteries & Solar 29 03-09-2017 06:58 PM
Battery replacement..have SRM27 Interstate Kistler Our Community 3 11-27-2004 10:41 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 01:38 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.