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S60 & V60 '18> / XC60 '17> / S90 & V90 '16> / XC90 '15> General Forum for the SPA-platform 60- and 90-series models |
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'18 XC60 battery drain issueViews : 1219 Replies : 18Users Viewing This Thread : |
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Sep 21st, 2018, 21:23 | #11 |
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At ~15C, 12.4v on an AGM battery (assuming an accurate measurement taken after surface-charge dissipation) means roughly 60-65% charged.
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MY17 XC90 D5 Powerpulse Momentum: SENSUS, Osmium Grey, Blond, Walnut, Xenium, BLIS + CTA & RCM, Winter Plus, Fuel-fired Heater, Heated Rear Seats, Power Extensions, Tinted Windows Coming soon: XC60 Ultimate Recharge MY24 or 25 or... |
Sep 21st, 2018, 21:30 | #12 |
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Indeed 12.4 aint good especially on a new and charged battery thats been driven on.
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Sep 21st, 2018, 22:40 | #13 |
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this is an experiment I did back in may and this way to varify that the start up battery get charged at the same time when one charges the hydrid battery , and I have monitered my previous cars and 12,4v is not bad
back to my experiment this is with the motor off with the engine off 20180512_101502.jpg during charging my T8 battery 20180512_101644.jpg |
Sep 21st, 2018, 22:48 | #14 | |
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Quote:
100/65 * 12,4 =19,2v 19,2v battery wow that must be some battery |
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Sep 21st, 2018, 23:34 | #15 |
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No - its a curve, between roughly 11.5V at 10% and 12.7at 100%
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Sep 22nd, 2018, 00:29 | #16 |
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aha forgot all about the battery curve
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Sep 22nd, 2018, 10:02 | #17 |
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Well, the proof of the pudding is about to happen. I've unlocked the car, opened the boot and left it for fifteen minutes - about to check the voltage now.
Fingers crossed, but I'm doubtful... |
Sep 22nd, 2018, 10:10 | #18 |
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Reading 12.17v this morning, which is better than I expected but still not right I don't think.
What's the consensus? Just a knackered battery, or is there still some sort of drain happening? The dealership told me that if it goes flat, don't disconnect or try to charge it, just call Volvo Assistance and get it recovered back to a main agent so they could do a fault diagnosis with the duff battery in place. |
Sep 22nd, 2018, 10:35 | #19 |
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A drop form 12.4v to 12.17 is significant and definitely not right as 12.17v is about a 35-40% battery charge state and implies a ~30% loss in <24 hours.
Could be either a duff battery or something is causing a (very) large drain.
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MY17 XC90 D5 Powerpulse Momentum: SENSUS, Osmium Grey, Blond, Walnut, Xenium, BLIS + CTA & RCM, Winter Plus, Fuel-fired Heater, Heated Rear Seats, Power Extensions, Tinted Windows Coming soon: XC60 Ultimate Recharge MY24 or 25 or... |
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