Battery Type: Li-ion Polymer battery Capacity: 1200mAh Nominal Voltage: 3.7V Pack Dimension: 5.5 x 37.5 x 61.0mm Weight: 15g Working Temperature: Less than 60℃(140℉) Compatible Models: Autec Air A4, Autec Air A6, Autec Air A8 Crane Remote ControlCompatible Part Numbers: AIRBM3V7L, BH3V7L