Each battery from Efest has a unique 20 verification codes that can be identified by inputting it on the official website,which makes it easy and effective to recognize the fake batteries . Please follow the steps to check your batteries in time : 

                    Step 3: Please visit : https://www.efestpower.com/index.php?ac=article&at=list&tid=126 ,

            and choose a blank  to input the unique 20 security numbers without space, then click “Verify”  button

ShenZhen Fest Technology Co.,ltd

Marketing team