1.Electric bike water bottle battery 2.24V and 36V 3.8.8Ah,9Ah,11.6Ah 4.Rechargeable We are professional do e-bike kits business for many years for the customers all over the world, and have met so many troubles, with these troubles, we have much experience on e-bike kits today.Our e-bike kits are easy to install and allow you to convert your standard bicycle into an fun and eco-friendly e-bike. ...