I had this Ballistic evo 2 battery in my Cannondale quad for 2 years and it died. I kept excellent care of it and it still failed me. I expect much more from a battery that cost me over $150,00. My mechanic buddy tore the battery down to hopefully fix the bad cells and told me the quallity of cells was better on his RC car. I absolutely would not reccomend this battery to anyone.