e-bike battery: 24v10ah lithium battery with aluminum alloy case big capacity,more power 24V10AH lithium battery :normal voltage:24vcapacity: 10ah other 6ah,8ahweight: 2.5kgsize: 325*150*65mmappearance :aluminum alloy case and controllor casethe battery material: lifepo4 , limn2o4 , li-ion .