A battery cover protects your bike's battery from cold and the elements. The ideal operating temperature for a battery is above 20 degrees Celsius. If the outside temperature is lower, a battery cover helps to retain more heat. The heat generated in the battery during energy discharge is retained longer thanks to the cover. This can increase the range. Tip: For optimal performance, the battery should always be stored and charged at room temperature. Shortly before the start of the ride, the battery is placed on the bike. Suitable for: Bosch powerpack 300/400/500 DS Covers Article number: 705539 EAN code: 8718657940434