Originally Posted by cthenn

I've had my Di2 system for over a year(?) now, and generally, everything works well. But I've had a problem on more than one occasion where the battery will drain after working on my bike. When I'm just doing a lube refresh, what I do is just flip the bike over, wipe the chain down, and re-lube. I always shift into the big ring and little cog to do this. So, after flipping the bike over, I'll turn the cranks, and shift into this gear combo. After finishing, I'll just flip the bike over, and leave it in that gear combo. But it seems like every time I do this, the battery will drain out before the next ride. Usually I'm lubing the chain after a ride, or well before I go out again, so I'm not immediately jumping on the bike afterwards. I can alleviate this problem by simply shifting a few gears on the bike before putting it away. Not sure what I'm doing to drain the battery, has anyone ever experienced this problem?