Stacyc Lithium Ion 20V 5Ah Battery Let the good times keep rolling with a second battery for your child's Stacyc bike. The battery is compatible with both the 12eDrive and the 16eDrive. Features: Compatible with Stacyc 12eDrive, 16eDrive and Brushless 16eDrive balance bikes and chargers Rated output: 5Ah 30-60 minute run time Lightweight Industrial grade lithium-ion construction Proprietary internal coatings Note : Run-time is entirely dependent on terrain, hills and rider's power usage. Run-times are estimates and can vary.