540Wh battery compatible with i:SY eBike featuring the Bosch Performance Line drive system. This lightweight model weighs 2752 grams and has 36 volts and 15Ah, totaling 540 Wh. Our e-bike-vision replacement battery is precisely designed as a replacement or secondary battery for the i:SY XXL eBike battery Powerpack 300, 400, and 500 in black and anthracite for seat tube mounting. The replacement battery is manufactured in Germany but is not an original i:SY XXL or Bosch battery. The battery fits seamlessly behind the seat tube, just like the original battery. Our affordable and freshly manufactured eBike battery in Germany is compatible with all i:SY XXL E-Bikes that use the Bosch Powerpack 300, 400, 500, and the battery part number P/N 0275007530 Bosch 0 275 007 530 battery. It is a Li-Ion seat tube battery with a capacity of 15Ah. This battery can be used with Bosch Active Line, Performance Line, and Performance Line CX eBike drives. Thanks to the use of particularly powerful Li-Ion batteries, the battery can be charged or recharged at any time, as the Li-Ion system does not have a memory effect. Due to the very low self-discharge of the batteries inside the battery pack, long storage periods, such as over the winter months, are not a problem. The intelligent Battery Management System (BMS) developed by E-Bike-Vision protects the high-quality battery from overcharging, overheating, overload, and deep discharges. Our current 2022 BMS continuously monitors each individual battery to optimize the lifespan of the entire battery power pack. Our batteries for the seat tube, down tube, or frame have 540 Wh and weigh only 2752 grams. Battery compatible with i:SY XXL, Bosch Powerpack 300, 400, 500 Performance Line.