I rode 4-5 miles yesterday and stopped for a few minutes putting by bike in "lock' mode. When I returned to resume my ride, I could not get any response from the button used to start up on the bottom of my top tube of my ST-2. Fortunately I had the key to the battery compartment with me and removing, then reinstalling the battery solved the problem (at least at that moment!). I am happy that someone had previously posted this reminder at an earlier date on the forum...don't leave home without it. I also occasionally forget to recharge my phone some evenings, so I decided to throw a charger chord into my rack pack just in case I ever get caught out with a dead phone while riding