A drain would have caused issues ahead of the complete failure. As the others stated its just worn out. Some batteries last longer than others.

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03 E46 M3 vert
08 E70 4.8i X5
03 E85 2.5 Z4
03 Z33 350Z
05 Expedition
03 Dodge ram 2500
99 F350 dually
I may have a vehicle addiction