Guys, in case I have not been able to find the forums, please direct me but I am looking of ways to find out if my battery on my '04 525i E60 fully charged or not. I would like a confirmed method of check the battery charge with a multimeter or something else instead of the traditional BMW way below;
Note the colour of the hydrometer during each inspection or battery check and proceed as follows: Green = Battery charge adequate (no action necessary) Black = The battery is inadequately charged (recharge the battery fully) Pale yellow = Acid level too low (replace battery) How can I confirm the following steps as per BMW's recommendation i.e. A fully charged battery in new condition delivers a voltage of at least 12.7 volts. - No further actions are necessary if the battery voltage is greater than 12.3 volts. - If the battery voltage is between 12.0 volts and 12.3 volts, the battery must be recharged for at least 12 hours. - If the battery voltage is less than 12.0 volts, the battery is unserviceable and must be disposed of at the expense of the workshop. I have a very peculiar issue which is taking me to think my battery might not be fully charged where as the Magic-eye is green, so I want to confirm. |
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How about trying the Hidden OBC menu, item #9 for the battery voltage? With the engine off, this gives the pure battery voltage and with the engine running, gives the alternator/charging voltage.
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Originally Posted by kskane
(Post 1468183)
Guys, in case I have not been able to find the forums, please direct me but I am looking of ways to find out if my battery on my '04 525i E60 fully charged or not. I would like a confirmed method of check the battery charge with a multimeter or something else instead of the traditional BMW way below;
Note the colour of the hydrometer during each inspection or battery check and proceed as follows: Green = Battery charge adequate (no action necessary) Black = The battery is inadequately charged (recharge the battery fully) Pale yellow = Acid level too low (replace battery) How can I confirm the following steps as per BMW's recommendation i.e. A fully charged battery in new condition delivers a voltage of at least 12.7 volts. - No further actions are necessary if the battery voltage is greater than 12.3 volts. - If the battery voltage is between 12.0 volts and 12.3 volts, the battery must be recharged for at least 12 hours. - If the battery voltage is less than 12.0 volts, the battery is unserviceable and must be disposed of at the expense of the workshop. I have a very peculiar issue which is taking me to think my battery might not be fully charged where as the Magic-eye is green, so I want to confirm. In addition to using a multimeter, one purchase I made that has been a big help is a cigarette lighter multimeter. http://www.rvplus.com/prime-products...FWWCQgodPBsAXQ Nice thing is you can monitor system voltage before starting, just after starting during alternator ramp-up and during a drive. I used this same unit to trouble shoot my alternator voltage regulator, which would start at 13.5V, rise to 17V after 15 seconds, then fluctuate between 11.5V and 14V during my drive. |
Originally Posted by SilberGrauE60
(Post 1468184)
How about trying the Hidden OBC menu, item #9 for the battery voltage? With the engine off, this gives the pure battery voltage and with the engine running, gives the alternator/charging voltage.
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Originally Posted by BimmerFan52
(Post 1468195)
In addition to using a multimeter, one purchase I made that has been a big help is a cigarette lighter multimeter.
http://www.rvplus.co...CFWWCQgodPBsAXQ Nice thing is you can monitor system voltage before starting, just after starting during alternator ramp-up and during a drive. I used this same unit to trouble shoot my alternator voltage regulator, which would start at 13.5V, rise to 17V after 15 seconds, then fluctuate between 11.5V and 14V during my drive. |
Some guides say to use the last 6 digits of the vin. It should say the last 5.
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Yea, use only the numbers (digits) not letters in the last positions of the VIN. Then, you must be careful counting the # of clicks when entering this number.
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Originally Posted by SilberGrauE60
(Post 1468626)
Yea, use only the numbers (digits) not letters in the last positions of the VIN. Then, you must be careful counting the # of clicks when entering this number.
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Maybe try the last 5 digits, thus 65588 = 32 instead. This is suggested by CHR15 above.
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Originally Posted by CHR15
(Post 1468620)
Some guides say to use the last 6 digits of the vin. It should say the last 5.
Originally Posted by SilberGrauE60
(Post 1468754)
Maybe try the last 5 digits, thus 65588 = 32 instead. This is suggested by CHR15 above.
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