... 24V, 36V, Capacity: 7-12 Ah. 2) Polymer lithium battery phosphate, used in electric bicyc Features:1) Nominal voltage: ... 24V, 36V, Capacity: 7-12 Ah.2) Polymer lithium battery(phosphate), widely used in electric bicycle.3) Protection control circuit ... high voltage pulse and contrary electromotive force absorbed, temperature sensor,over voltage protection and auto reactivation by releasing protection ...