About this item: Function: As a spare battery for a your RC Drone and can extend the playing time. Easy to plug in and out,Battery Size: 44*25*9mm ( L x W x H ). Weight: 16G. Plug Type: XH2.54 Connector, suit for Remote Control Toys, Lighting, Security Facilities, Electric Tools, etc. High quality and safe to use,safe in normal use,Easy operation, battery can be charged anytime without the need to fully discharge. Battery Volt: 3.7V 25C Battery capacity: 600mAh ,Please make sure your RC Drone Battery are the same Voltage and same connector with the picture shows before you buy it. .