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Thread: 2005 VW Transporter T30 Camper leisure battery location

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  1. Re: 2005 VW Transporter T30 Camper leisure battery location 
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    Well I tested it yesterday and initially the voltage was 12.34v without touching it (the van having been driven 3-4 hours prior), and with the engine running the voltage at the terminals increased to 13.5v, which I presume is normal as the system will be designed to charge the leisure battery slower than it would the starter battery, which I know charges at 14.4v from testing previously.

    After running the engine for 20 minutes I shut it off and the voltage then remained at 12.7v, but under load (refrigerator and lights) it dropped to less than 9v after only 1 hour.

    Therefore I conclude that the charging system is working correctly but the battery itself has likely seen much better days. In a last ditch attempt to revive it I have disconnected it and put it on a slow charge which I'll leave on for 24-36 hours then load test it again and see if the results are any better.

    It was indeed under the driver (right hand side) seat, and easily accessable by moving the seat all the way forward. I can't believe I missed it before!! In fact, I think I could actually remove it through the gap without having to remove the seat at all which would be a bonus.
     
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  2. Re: 2005 VW Transporter T30 Camper leisure battery location 
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    That implies that either the battery is at end of life or simply not fully charged. On a positive note I don't think 20 minutes of engine running would put a lot of charge back in the battery...

    Not knowing what charging system you have in the vehicle the 13.5 V could indicate a 1v voltage drop from the alternator, a diode split charge rather than a relay or inadequate cable.

    Putting it on a charger (ideally a smart charger) as you have done will hopefully revive it - if not then a new battery I'm afraid.

    As I said before removing the drivers seat is not an arduous task - six bolts if I remember correctly bolt the runners down.

    Good luck!
     
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  3. Re: 2005 VW Transporter T30 Camper leisure battery location 
    #13
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    Quote Originally Posted by mbeenham View Post
    That implies that either the battery is at end of life or simply not fully charged. On a positive note I don't think 20 minutes of engine running would put a lot of charge back in the battery...

    Not knowing what charging system you have in the vehicle the 13.5 V could indicate a 1v voltage drop from the alternator, a diode split charge rather than a relay or inadequate cable.

    Putting it on a charger (ideally a smart charger) as you have done will hopefully revive it - if not then a new battery I'm afraid.

    As I said before removing the drivers seat is not an arduous task - six bolts if I remember correctly bolt the runners down.

    Good luck!
    Yes well I couldn't see a visible relay or hear any click so I'm thinking it may be a diode.

    Charged it up for 24 hours in situ (disconnected) and upon reconnecting and putting under load for 2 hours with the lights and refrigerator it only dropped to 12.3v, so I'm feeling positive about the battery but if it needs replaced then so be it.

    Thanks for your help, much appreciated!
     
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