Where do I find the serial number on my bike? Michael DeVisser October 25, 2017 18:12 Updated Follow Locate the serial number of your bike: Under bottom bracket: On top or underside of kickstand bracket: Related articles How long will the battery last? Are there any fast-chargers for batteries? Can I purchase a spare battery for my OHM e-bike system? Do I need to completely discharge the battery before recharging it again? What will happen if the batteries on my OHM become completely depleted? Comments 0 comments Please sign in to leave a comment.