You are logged in as a guest. 
  Home Forums Home  Search our Forums Search our Forums    Log in to the Forums Log in to the Forums  register Register on the Forums  

 Forums ->  Motorhomes -> Motorhome Matters
Jump to page : First 1 Last
Format:  Go
Solar panel charging issues
AuthorMessage
usersimon ackroyd
Posted: 19 October 2021 6:24 PM
Subject: Solar panel charging issues
 
Just joined

Posts: 9



Hi all.
I am new to this forum so this could be a little messy.
I recently changed my platinum plus battery for a Lifepo4 from Sterling batteries.
I have a Ctek 250se B2B the battery is charging fine from Smart Alternator and from on board battery charger but does not seem to be receiving a current from the Solar panel.
The habitation display panel shows the usual voltage and current flow information and in the current weather showing around 2.2Amps coming from the solar panel, but the BMS APP shows 0Amps with no apparent increase in % over the whole day.
Note: It was working previously.
I have been tearing my hair out.
Can anyone suggest any solution.
Thanks
Simon
userspirou
Posted: 20 October 2021 4:48 AM
Subject: RE: Solar panel charging issues
 


Pillar of the forums

Posts: 639
50010025
Location: SI, PVC X290 Peugeot


Fuse? Battery full?
usersimon ackroyd
Posted: 20 October 2021 6:54 AM
Subject: RE: Solar panel charging issues
 
Just joined

Posts: 9



I assume your asking if I have blown fuse the answer all fuses are good.
Currently the battery is at 45% according to the BMS APP.
12.6v.
userOcsid
Posted: 20 October 2021 7:31 AM
Subject: RE: Solar panel charging issues
 
A posting machine

Posts: 369
1001001002525
Location: Hampshire


Your observation "The habitation display panel shows the usual voltage and current flow information and in the current weather showing around 2.2Amps coming from the solar panel", can only mean some 30 plus Watts are being put somewhere, even if the battery's BMS App is failing to display it, or detect any increase in battery capacity.

Do these things have minimum voltage and current thresholds and under present conditions the achieved volts and 2.2 amps is not enough to do any charging, just that resulting 30 odd Watts being lost as heat?

Is the solar controller one with a Lithium battery charging profile, and set to that mode?
userAlanb
Posted: 20 October 2021 10:06 AM
Subject: RE: Solar panel charging issues
 
Epic contributor

Posts: 1182
1000100252525
Location: North Yorkshire


The current reading of at least some habitation display panels is adjustable. Have you confirmed that with all appliances switched off, the displayed current is approximately zero?

If you have a genuine 2.2A it must be going somewhere!

The CTEK 250SE is switched between various profiles, by connecting a control wire to either +12V, 0V, or a disconnection. Have you made the correct connection when changing habitation battery type?

Alan

userDerek Uzzell
Posted: 20 October 2021 10:50 AM
Subject: RE: Solar panel charging issues
 


500050005000500010002525
Location: MODERATOR - 2015 Rapido 640F LHD 2.3ltr 150bhp


simon ackroyd - 2021-10-19 6:24 PM

...Note: It was working previously...


Does that mean that your vehicle’s electrical system was operating as expected when the Platinum battery was in place and the present issue became apparent immediatey after you had swapped to the Sterling Power lithium battery?

Or was the electrical system operating as expected for a period after the battery change and the solar issue has just shown up?

Not sure it will help in this instance, but having some details of your vehicle would do no harm

https://forums.outandaboutlive.co.uk/forums/Motorhomes/Motorhome-Matters/-IDENTIFYING-YOUR-MOTORHOME-/54713/

It might also be useful to know whether fitting the CTEK B2B and/or the lithium attery was carried out ‘professionally’ or DIY.

(Sterling Power LiFePO4 batteries were discussed here earlier this year.)

https://forums.outandaboutlive.co.uk/forums/Motorhomes/Motorhome-Matters/Sterling-Power-LiFePO4-Lithium-Leisure-Batteries/58176/
usersimon ackroyd
Posted: 20 October 2021 11:24 AM
Subject: RE: Solar panel charging issues
 
Just joined

Posts: 9



Update
I came out this morning to find had gone into sleep mode overnight?
Recharging now shows 25% 16a 13v
usersimon ackroyd
Posted: 20 October 2021 12:42 PM
Subject: RE: Solar panel charging issues
 
Just joined

Posts: 9



Hi
I have been on to battery manufacturers and while they don't have a minimum input voltage or current he did say they don't always show very low current.
I have connected the control wires from CTEKD250 correctly form lithium as far as I know.
I am not sure about habitation panel I just assumed it was a display not a adjustable controller.
Perhaps I need to look closer.
usersimon ackroyd
Posted: 20 October 2021 12:47 PM
Subject: RE: Solar panel charging issues
 
Just joined

Posts: 9



I bought the van and had it converted by a company in Edinburgh. I was not impressed with so not going back to them.
The previous set up with platinum battery was working fine but new set up not charging from solar everything else is fine
userKeithl
Posted: 20 October 2021 1:02 PM
Subject: RE: Solar panel charging issues
 


Lord of the posts

Posts: 5989
5000500100100100100252525
Location: Birmingham. 2004 Auto-Trail Cheyenne Mercedes 313.


What make and model of habitation panel and charger unit are fitted? And what is the base van make and model please?

Keith.
usersimon ackroyd
Posted: 20 October 2021 1:22 PM
Subject: RE: Solar panel charging issues
 
Just joined

Posts: 9



I believe so Alan
usersimon ackroyd
Posted: 20 October 2021 2:06 PM
Subject: RE: Solar panel charging issues
 
Just joined

Posts: 9



Hi Keith
The B2B is Ctek250se I think the on board battery charger is not an issue as it is charging the Battery fine its the supply from the Solar that is not getting through to the battery.
The habitation control panel is CBE PC380 Iam beginning to think that this is where the problem lies. I am looking through manual to work out if there is something I need to change.
usersimon ackroyd
Posted: 20 October 2021 3:38 PM
Subject: RE: Solar panel charging issues
 
Just joined

Posts: 9



Further update.
Discovered what caused the overnight battery drain.
"STUPIDITY"

userDerek Uzzell
Posted: 21 October 2021 8:29 AM
Subject: RE: Solar panel charging issues
 


500050005000500010002525
Location: MODERATOR - 2015 Rapido 640F LHD 2.3ltr 150bhp


simon ackroyd - 2021-10-20 2:06 PM

...The habitation control panel is CBE PC380 Iam beginning to think that this is where the problem lies. I am looking through manual to work out if there is something I need to change.


CBE-made equipment is popular with motorhome converters as it’s relatively inexpensive and ‘kits’ are marketed comprising the essential components that can be linked together straightforwardly.

The PC380 is ‘programmable’, though its functionality will depend on which CBE Distribution Box a kit includes and how the converter has installed the equipment. The basic (cheapest) kit uses a DS300 Distribution Box. An example is advertised here

https://www.12voltplanet.co.uk/cbe-pc380-digital-control-panel-kit.html

and there’s a User Manual here

https://www.manualslib.com/manual/2134105/Cbe-Pc380-St.html?page=16#manual

I’d be tempted to refit the Platinum battery to see if that ’cured’ the solar-panel charging issue. (I assume you changed the CBE battery-charger’s setting when you fitted the lithium battery.) If solar-panel charging then operated OK, you’d know that the problem lay with the lithium battery installation: if solar-panel charging did not operate OK, you’d know that the problem lay with the CBE equipment.


userKeithl
Posted: 21 October 2021 8:50 AM
Subject: RE: Solar panel charging issues
 


Lord of the posts

Posts: 5989
5000500100100100100252525
Location: Birmingham. 2004 Auto-Trail Cheyenne Mercedes 313.


simon ackroyd - 2021-10-20 3:38 PM

Further update.
Discovered what caused the overnight battery drain.
"STUPIDITY"

So for the benefit of any future readers with similar problems what did you do so stupidly...

Keith.
userDerek Uzzell
Posted: 21 October 2021 10:55 AM
Subject: RE: Solar panel charging issues
 


500050005000500010002525
Location: MODERATOR - 2015 Rapido 640F LHD 2.3ltr 150bhp


Keithl - 2021-10-20 1:02 PM

...And what is the base van make and model please?

Keith.


Base vehicle is a Peugeot Boxer panel-van.
usersimon ackroyd
Posted: 22 October 2021 2:51 PM
Subject: RE: Solar panel charging issues
 
Just joined

Posts: 9



I will put together a full situation report soon when I get chance. Thanks for everyone's help
Jump to page : First 1 Last
Printer friendly version
E-mail a link to this thread
Jump to forum :


(Delete all cookies set by this site)(Return to Homepage)

Any problems? Contact the administrator