About this item Battery Volt3.7V,Battery capacity: 1800mAh ,Please make sure yout RC Drone Battery are the same Voltage and same connector with the picture shows before you buy it. Plug Type: XH2.54 Connector. Function: As a spare battery for a your RC Drone and can extend the playing time. High quality and safe to use,safe in normal use,Easy operation, battery can be charged anytime without the need to fully discharge. Easy to plug in and out.Battery Size: 2.24*1.14*0.39inch ( L x W x H ). Features: Compact and lightweight, easy to carry. Large capacity allows you to play your toys for a long time. Great battery replacement for your transmitter of toys. Flexible and stable, durable performance. -High quality and safe to use,safe in normal use,Easy operation, battery can be charged anytime.