2 years and 12,000 miles and about to put in a 3rd battery. Yesterday, bike left me abandoned at Octoberfest (salt lake city) when it wouldn't start and voltimeter read 10.9 after sitting overnight in mid 40s. 2 hours of charging (thank you Snowbird hotel) and up to 12 and away we went. Full charge overnight and only 12.3 . Enough to start, but now hesitant to rely on it. No hint it was going except the day before it had a slight hesitation before starting on first push. And this is already battery #2 ... #1 couldn't hold a charge after about 10 month of use and it was replaced under warranty. Only other things attached are clearwater lights and a brake light modulator. Nothing else connected. Used at least 5 days a week. so my questions are 1) Common for BMW batteries to dies abruptly and have such a short lifespan? 2) Is anyone running a non-OEM battery ? thankfully will be taking it in for 12000 mi service next week, but still frustrated and a bit nervous to rely on this for long trips. Shouldn't have to worry about taking a battery jumper on every road trip.