Can act as a spare or replacement battery for your rc model, to increase the playing time Please make sure your device battery is the same size and connector as the picture shows before you buy it Battery Size : 51 x 29 x 29 mm/2 x 1.14 x 1.14 inch , Battery Weight : 110 g Battery Comes with a SM2P Plug USB Charging Cable,Easy to install and with perfect performance Fits for RC Toy,Household Electric Appliances ,Lighting Equipment Etc,As a good replacement for the damaged or old battery.