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Old 09-18-2011, 11:08 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 21,088
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by bimmerteck View Post
Check you charger carefully Bee and be sure to have it under load while doing so.
One thing I've learned, is NEVER CHARGE THE BATTERY ON THE CAR!

Today, I took the battery out of the car to test it as per:
- How to test a BMW E39 battery & alternator

Certainly the battery is bad, so I'll replace it today, as per:
- Good Replacement Batteries for the e39?

And then I'll move on to the fuses, as per:
- Need help with location of the fuse boxs and overview of fuse positions for 528i?

Like when it was in the car, the 25-year-old battery charger was pegged at >6 amps for quite a while, at least a half hour, maybe 45 minutes, before it dropped back to 4 amps:


The amp meter on the charger seems to be similar to that on the Fluke 75 so I think it really is pegged above.
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Last edited by bluebee; 09-19-2011 at 06:21 AM.
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