Leisure battery Hymer classic 2.8JTD 2005 - Motorhome Forums, Motorhome Discussion, Motorhome Chat

User Tag List

 3Likes
  • 1 Post By jiwawa
  • 2 Post By jiwawa
 
LinkBack Thread Tools
post #1 of 7 (permalink) Old 03-01-2021, 12:13 Thread Starter
Junior Member
 
Join Date: Oct 2011
Location: Nottingham
My Motorhome: Hymer C524 Classic
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Leisure battery Hymer classic 2.8JTD 2005

Happy new Year Motorhomer's would you say i have a problem here, the situation.;- EHU CONNECTED, no 12v lights etc switched on, engine not running. ELEKTROBLOCK 99 Charger switch set to Lead Acid position. Volts on leisure battery showing 15.64v


EHU disconnected, all lights switched on to drop volts on Leisure battery. 12.96v Then engine started, volts rose to 13.7v
The Leisure battery is fairly new, and a lead acid battery was fiited before ichanged it.
I'm a bit concerned, but i have never checked the voltage before on the leisure battery, so i think it has been like this a while. There is no heating of the L battery or signs of buckling.
Any suggestions would be gratefully appreciated. Thanks. Bombero
ps i have attached photo's
Attached Images
File Type: jpg Leisure batt showing Volts.jpg (141.7 KB, 6 views)
File Type: jpg EBL 99 showing charger switch.jpg (73.3 KB, 3 views)
File Type: gif EBL 99 front panel.gif (74.4 KB, 5 views)

Last edited by bombero; 03-01-2021 at 12:17.
bombero is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 03-01-2021, 12:21
Senior Member
 
Join Date: Jun 2007
Location: Belfast
My Motorhome: Hymer Exsis-i 504
Posts: 9,717
Thanks: 193
Thanked 520 Times in 493 Posts
I'm not the most knowledgeable person to answer but it sounds like all is fine to me. When you're on EHU your batteries are under charge and therefore will have a high reading (as also when ignition running if the system is so wired).

Once you come off charge of any kind the batteries will revert to a very respectable 12.5v or so.

I think.
Penquin likes this.

Jean
jiwawa is online now  
post #3 of 7 (permalink) Old 03-01-2021, 12:29
Senior Member
 
Penquin's Avatar
 
Join Date: Oct 2007
Location: Aquitaine
My Motorhome: Swift Kontiki 615
Posts: 21,336
Thanks: 997
Thanked 841 Times in 754 Posts
Personal Aire
12v batteries are normally charged at around 13.4v AFAIK, they generally show a voltage of around 13.9v when on EHU or with engine running.

That voltage does not drop until at least 30 minutes after the charging system (EHU or engine) is switched off.

BUT it looks like your charging voltage is a bit higher than expected, that may be due to a fault, or it may be the voltmeter itself. One thought, does your system charge the engine battery at the same time ? If so the higher voltage could be because it is doing precisely that and there may be a voltage drop through the wires to the engine battery ?

If there are no problems and nothing has changed, don't worry. Just keep an eye on it.

Any typo that I make means the errorists win.

Any comments above are only MY OPINION and should be read as that.

http://www.leslezards.co.uk
Penquin is offline  
 
post #4 of 7 (permalink) Old 03-01-2021, 12:31
Senior Member
 
Join Date: Jun 2007
Location: Belfast
My Motorhome: Hymer Exsis-i 504
Posts: 9,717
Thanks: 193
Thanked 520 Times in 493 Posts
Ooh, I'm glad I've learned something from being on this forum for 13 or 14yrs!!
erneboy and Penquin like this.

Jean
jiwawa is online now  
post #5 of 7 (permalink) Old 03-01-2021, 16:31
Senior Member
 
eurajohn's Avatar
 
Join Date: May 2005
Location: Mayenne France
My Motorhome: Frankia T640 FF2
Posts: 3,309
Thanks: 52
Thanked 228 Times in 205 Posts
15.6 volts if accurate is high for a flooded cell battery, I'd check with another meter and if the figure is correct I'd be looking to find out why so high.

You need to let it rest and check the voltage of the battery with it disconnected from the vehicle, if the result of that check is a figure above 12.6 volts, reconnect the battery and carry out the test again using same procedure as you show in your post.
It is not uncommon for a system to show above 14 volts if the battery is in a very low state of charge.

Long term 15.6 volts that will damage the battery.

John
eurajohn is offline  
post #6 of 7 (permalink) Old 04-01-2021, 10:24 Thread Starter
Junior Member
 
Join Date: Oct 2011
Location: Nottingham
My Motorhome: Hymer C524 Classic
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Thanks guys for your feedback, i'm going disconnect the leisure battery then connect again to see if it resets anything. I will check also with another meter as suggested. The battery does come back to 13.7 when EHU disconnected. I'm hoping it's not the Elektroblok 99 that's at fault. Thanks again. bombero
bombero is offline  
post #7 of 7 (permalink) Old 04-01-2021, 10:32
Senior Member
 
Penquin's Avatar
 
Join Date: Oct 2007
Location: Aquitaine
My Motorhome: Swift Kontiki 615
Posts: 21,336
Thanks: 997
Thanked 841 Times in 754 Posts
Personal Aire
I was just looking into Electrobloc problems for another poster on two other threads !

AandNcaravan services are superb, very trustworthy and may well be able to give you definitive advice and assistance.

http://www.aandncaravanservices.co.u...ektroblock.php

They also service the units rather than just sell another if that turns out to be what is needed.

Good luck, do keep us informed please - it helps all of us to learn and then, perhaps, offer advice to others if/when they encounter similar problems.

Any typo that I make means the errorists win.

Any comments above are only MY OPINION and should be read as that.

http://www.leslezards.co.uk
Penquin is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Motorhome Forums, Motorhome Discussion, Motorhome Chat forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome