Battery B - Compatible with all devices from the ALPINA 48 Volt range. It recognizes which device it is currently being used in, adjusts the required energy output accordingly, and thus increases both the runtime and lifespan of the battery. Button for checking the charge status. Always displays the current charge level during operation. Charger is not included in the delivery. Note: Delivery is direct from the manufacturer. Not a stock item! Different delivery time. Delivery is freight-free. Item is excluded from return!.