I have posted this approx 20x times
It all sits in a folder called Starting/Charging System testing. Blows my mind that every newbie asks the same 5-8 questions without any searching or even looking at the DIYs.
Most start with I just purchased a X5 that has been sitting for xx months (ever wonder why?) with a dying battery and now XX is going on. Gee, how could that be?

You have been very tolerant and helpful as always which is always a good thing.
Knowledge is always transferable if the receiver is turned on.....

__________________

2005 X5 4.8IS
The Blue ones are always FASTER....

Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green