Specifications:

battery power for mobiles
1.charge mobiles and other devices
2.longlife battery power bank 4000mah
3.portable battery power
 

Battery power 4000mah with let flashlight function

1.Press the button to start charging ,the pilot lamp turns blue.                                                            

2.When the pilot lamp turns blue,press the button to switch the lightting function.                                          

3.Press the button 3 seconds,to start SOS function.     

4.When the volage is 4.25v-3.5v, the pilot lamp turns green while charging, but blue while lighting.                       

5.When the volage is 3.45-3.0v ,the pilot lamp becomes yellow while working.                                           

6.When the volage under3.0v, the yellow light sparks,means it need charging.