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Leisure battery not charging when driven

Tom Davison

Tom Davison

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hi guys my first thread but I seem to have another problem with our new t6 204 4 motion ocean. The leisure battery's don't seem to charge at all when driven. The G symbol seems to appear in the control unit but what else should be showing for example should I see a positive figure appear in the amps?
 
Hotel California

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Hi and welcome on your first pist,
Does it charge on hook-up?
There are many things that could cause this , try and read some treads about battery charging problems and start from there.

But if my new T6 had this problem i'd go to the dealer....
 
WelshGas

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hi guys my first thread but I seem to have another problem with our new t6 204 4 motion ocean. The leisure battery's don't seem to charge at all when driven. The G symbol seems to appear in the control unit but what else should be showing for example should I see a positive figure appear in the amps?
As you are under Warranty - VW.

The "G" symbol only appears when on Mains Electrical Hookup.

EDIT - Plug symbol on EHU and G symbol on Alternator charging.

The Control Panel should show a voltage of 13 - 14.4v when driving after the Engine battery has been charged via the alternator.
 
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bigmac77

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As you are under Warranty - VW.

The "G" symbol only appears when on Mains Electrical Hookup.

The Control Panel should show a voltage of 13 - 14.4v when driving after the Engine battery has been charged via the alternator.
Is the T6 different to the T5? On my T5 the G symbol appears on alternator charging, hook up symbol is a Euro style plug symbol.
 
Stoneybroke

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WelshGas

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Is the T6 different to the T5? On my T5 the G symbol appears on alternator charging, hook up symbol is a Euro style plug symbol.
Sorry, my mistake. Our new cat was trying to jump out of the 1st floor kitchen window - he succeeded. Yes G symbol on Alternator charging and Plug symbol on EHU.
The Voltage should still rise to 14.4 V once the Engine battery is charged.

Thanks for pointing out the error.

The cat has just done it again.!!!!!!!!!
 
Wrinkly Ninja

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Sorry, my mistake. Our new cat was trying to jump out of the 1st floor kitchen window - he succeeded. Yes G symbol on Alternator charging and Plug symbol on EHU.
The Voltage should still rise to 14.4 V once the Engine battery is charged.

Thanks for pointing out the error.

The cat has just done it again.!!!!!!!!!

Stratospheric Catastrophic!
 
Tom Davison

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Thanks for the responses. Hi yes the battery seems to charge on electric hookup but it doesn't when the engine on see picture I took of the control unit whilst engine on and put the heater on.

IMG_7292.JPG
 
snowy55

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Thanks for the responses. Hi yes the battery seems to charge on electric hookup but it doesn't when the engine on see picture I took of the control unit whilst engine on and put the heater on.

View attachment 17834

The heater takes an awful lot of amps on initial start up, mine gives readings similar to yours.
Does the amp reading lose the negative icon without the heater on and the engine has run for a while?
 
Tom Davison

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When driving and nothing on I get 0.0 amp and same 12.(something) volt no positive reading at all.
 
Jabberwocky

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Jabberwocky

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Really? When did this start?
This morning. I noticed the charge level was 90% which is strange as it has been at 100% since delivery (I've been keeping an eye on it) even after using aux heater for about an hour on Saturday. Fridge and Aux heater been switched off since. Admittedly we've only done 150 miles. Last journey was Monday and was about 16 miles. Charges fine on hook up at about 14.3v + 5.4 Amps.
 
Loz

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I have noticed on occasion it not being charged and is because the alternator is under ecu control and can be set to idle, and whilst in the mode you can also see current flow from the leisure side across to the vehicle side and this is normal because our vehicles have a relay for split charge.
 
Jabberwocky

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I have noticed on occasion it not being charged and is because the alternator is under ecu control and can be set to idle, and whilst in the mode you can also see current flow from the leisure side across to the vehicle side and this is normal because our vehicles have a relay for split charge.
OK, thanks for that little gem. These vehicles are so complex! I will resist high tailing it to the VW Van Center just yet and see how the next few days go. Tanks again for your help/reassurance. JW
 
Jabberwocky

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OK, thanks for that little gem. These vehicles are so complex! I will resist high tailing it to the VW Van Center just yet and see how the next few days go. Tanks again for your help/reassurance. JW
@Loz Normal service resumed this morning! :)
 
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