Help zero lemon s3 extended battery showing wrong percentage

[ghendo]

i ordered the zerolemon 7000mah extended battery for my s3 and i was really excited so when i finally got it the battery worked just fine the first 2 days then i started to get these problems were my phone would display 30 percent and when i would put it in charge it would show 54 percent so then i rooted myphone and tryed calibrating the battery but that didnt work either i did everything correct what is the fix plz tell me if you know

 

[funkylogik]

Usually after a few charge/discharge cycles the phone should calibrate itself. Have my you tried that? (charge full then run down to zero then full charge again)