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 without the need to fully discharge. -Easy to install and release, very simple to use. -Function: As a spare battery for a your RC Drone and can extend the playing time. Specifications: -Battery Volt：3.7V,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. -Battery Size: 60x25x9mm ( L x W x H );weight:27.37g. Note: 1.Please turn off the power switch and unplug the.