Starter Battery Wiring - VW Disagreement
- Thread starter Ann3x
- Start date
Not much I'd assume....
the charger would try to work the other way round.... IE the leisure battery would try to to charge the starter battery.
Which most likely wouldn't happen as the starter battery voltage would normally be higher than the leisure battery.
the charger would try to work the other way round.... IE the leisure battery would try to to charge the starter battery.
Which most likely wouldn't happen as the starter battery voltage would normally be higher than the leisure battery.
Nothing most likely, as Dell says.
Thanks @Dellmassive and @travelvolts for prompt reply.
Folks
I know this is a old post from 2020
However the original OP describes my problem down to a T
VW T5 converted by CamperKing in 2013
Previous owner said it needed starting every week.
Changed the Starter battery which Halfords said had 33% usage
However the starting issues still continue
As can be seen from the first photo it looks like the B2B charger is indeed been connected to the negative battery terminal.
Going off various posts in this thread , I am correct the two wires currently attached to the negative terminal should in fact be attached to the body earth
Thanks
Matt
I know this is a old post from 2020
However the original OP describes my problem down to a T
VW T5 converted by CamperKing in 2013
Previous owner said it needed starting every week.
Changed the Starter battery which Halfords said had 33% usage
However the starting issues still continue
As can be seen from the first photo it looks like the B2B charger is indeed been connected to the negative battery terminal.
Going off various posts in this thread , I am correct the two wires currently attached to the negative terminal should in fact be attached to the body earth
Thanks
Matt
Yes, correct. They are bypassing the VW battery monitor so can cause a drain that the van doesn’t know about.
Not in a problem in a T5, it doesn’t have a smart alternator so it doesn’t matter
The previous comments relate to T6 vehicles that all have smart alternators and start stop systems installed
Your vehicle does not have a negative shunt fitted so it wont have a smart alternator or start/stop system so you are fine to connect direct to the battery
Your vehicle does not have a negative shunt fitted so it wont have a smart alternator or start/stop system so you are fine to connect direct to the battery
I should really have looked closer at the picture and I completely missed that it was a T5. Sorry for any confusion.
Thanks , looks like I need to find a suitable body ground point
Then give it a few weeks to see if the issue goes away.
No you don’t. Please read the rest of the replies.
No, my first reply was incorrect. Others have corrected me. Sorry for the confusion.
I suggest you start a new thread. In that thread tell us what all those wires on the positive terminal are connected to.
Also, you will need a clamp meter to measure current in each wire.
Pete
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