Basil: The Basil Battery Cover is a protective case for e-bike frame batteries. This sleeve is suitable for both men and women’s bikes, with a sleek design and slick finish. The neoprene battery case is designed for the protection of Bosch Active Battery and Performance Line Frame Batteries, offering optimal protection of your bicycle battery while you’re on the move. The sleeve provides thermal protection for batteries, ensuring they never succumb to extreme cold. This prevents you from unwanted breakdowns, ensuring you always get to where you need to be without any hassle. It also improves the overall riding performance of your e-bike. The protective cover is not only ideal for extreme cold temperatures, but also prevents unwanted damage, unsightly scratches and unnecessary shock from causing your frame battery harm. The cover itself is perforated with necessary openings, ensuring you full access to and operation of your battery without any problems, ideal for when you want to check battery life. Features:The Basil Battery Cover is a neoprene sleeve that offers optimal thermal protection for your frame battery.Extreme cold, scratches, damage and shocks are all counteracted by this cover.Special openings allow you to monitor battery life and operate essential buttons without having to remove the battery from the sleeve.Perfect for e-bike frames.