Bosch PowerTube 800 Battery -Vvertical 800Wh 36V MY25Bosch PowerTube 800 Battery Vvertical 800Wh 36V MY25. Bosch PowerTube batteries. Like all Bosch PowerTubes the battery is perfectly integrated into the frame of the eBike. The smart battery management system reliably protects the battery cells from overload. There is an intuitive lockable mechanism making the battery particularly easy and convenient to use. Lithium ion battery is equipped with a battery management system that protects the battery