XK / XKR ( X150 ) 2006 - 2014

forgot about the charging system calibration

 
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Old 01-12-2019, 03:24 PM
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Default forgot about the charging system calibration

On my drive the other day I watched my normal voltage of 13.5 start to go down to 12.7 and stay there while driving. Stayed that way for about 10 minutes but whenever I stopped it went back to 13.5. So I seemed to recall that the BMS would do a periodic calibration . Went into the service manual and found that when the calibration started the battery voltage would go down to 12.5 during this period . So for those of us with the 5.0 it's something to remember if you monitor your battery voltage .
 
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