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S60 & V60 '11-'18 / XC60 '09-'17 General Forum for the P3-platform 60-series models |
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Ctek Battery Charger & Negative Connection to XC60 ChassisViews : 5625 Replies : 35Users Viewing This Thread : |
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Dec 14th, 2019, 10:14 | #11 | |
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VIDA states not to connect directly to the battery negative pole for that reason. Following a battery replacement, the BMS should be reset through software, although I believe it can also be achieved by leaving the car locked and unused for 6 - 8 hours. At my last dealer service, the technician attached the battery support unit directly to both battery terminals (contrary to the instructions in VIDA). I had a "start/stop" unavailable message all the way home, but it disappeared and the start/stop system was working again the next day after the car had been parked overnight. |
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Dec 14th, 2019, 18:32 | #12 |
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Not a charger, but jump started a lady in a clio the other week, she had some jump leads..... looking at the engine there is a braded earth strap to the left of the engine (in front of steering wheel on a right hand drive car) just in front of the scuttle panel with a nice looking stud you can fit a a ring terminal too.....will need to extend the standard ctek leads though
Do you have tow bar? https://www.mobilecentre.co.uk/ctek-...-towing-socket Last edited by HDAV; Dec 14th, 2019 at 21:11. |
Dec 14th, 2019, 22:23 | #13 |
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There is nothing mysterious about connecting chargers and jump start leads. Positive to positive, negative to negative. Yes, if Volvo fits a sensor on the negative side to monitor charge status, what a stupid thing to do really; What is the point of doing it that way rather than on the +ve side ? Current in and out of the battery is the same whatever terminal its measured from.
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Dec 14th, 2019, 22:45 | #14 | |
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Dec 14th, 2019, 22:52 | #15 | |
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Not understanding how the system works is no reason to ignore the instructions given in the manual.
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Dec 14th, 2019, 23:09 | #16 | |
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Dec 14th, 2019, 23:11 | #17 | |
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Dec 14th, 2019, 23:26 | #18 |
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Exactly. Plus whichever of the battery posts the shunt is connected to, if you connect the charger leads directly to both battery posts you are bypassing the shunt and the BMS will not see the charge, so it's interpretation of the battery SOC will be wrong. When you connect the negative lead to a remote earthing point the shunt is in circuit as intended and the charging input is detected.
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Dec 15th, 2019, 09:41 | #19 | |
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Dec 15th, 2019, 14:46 | #20 | |
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Received your pm and unable to reply as I have less than 30 posts. Images are not displayed as the link is referenced to your desktop. Last edited by samball; Dec 15th, 2019 at 15:19. Reason: Peronal info |
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