The only High End Lithium Ion Starter battery for all BMW i8 Models. Up to 19kg (41lbs) lighter then OEM. About 3-5 times longer life. Preset for Plug&Play.Carbon housing and base plate. Wireless bluetooth interface diagnostics via smartphone app.Integrated active protection and surveillance electronics. Intelligent kill operation switch via app - ideal for longer storage periods. Active vehicle anti theft switch via app. i8 Procar tested and DMSB approved. Made in Germany. Built to order Includes 7.7% Swiss VAT