Are you a thrill seeker that is after ultimate performance, extreme power density and up to a 15kW tune?! This massively powerful 72v battery will deliver all the thrills you could want and do it while still fitting in the stock SurRon battery slot as a plug and play solution. Note this battery will require the use of a EBMX controller upgrade and will not run on the stock 60v controller. In addition, this battery will require a new 72v charger and cannot be charged on the stock 60v charger.