I rarely drive the 4.6is.
I took it out after 3 weeks of sitting.
For maybe 2 seconds I got a red battery light.
That was on the 15 miles drive home.

It is chilly here and I had all 4 bun warmers on.
Stereo blaring, headlights on.

As quick as it showed, it disappeared.
No electrical abnormalities, just a quick on, then off.
6 month old Interstate battery, 1 year old alternator.

Any reason for panic here?

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2003 4.6is X5
2003 525it
2003 E53 X5 Standard shift