Charging time: input 5V 4A and charge 4 batteries for about 60 minutes Input 5V 3A and charge 4 batteries for about 70 minutes Battery installation method: install the battery up and down or unplug the battery for more stable and safer charging. Charging status: bright red during charging, green when fully charged or waiting to be charged. (When two or three batteries are being charged, the corresponding lights are bright red and the other lights are dark red. When only one battery is charged, the corresponding lights are bright red and the rest are green.)<br><br>Product size: Direct 9CM Thickness: 1.8CM USB Android cable length: about 30.5 cm Colour: white Material: ABS<br><br>Package Contents: 1 x charger 1 x USB data cable<br><br>Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.