samsung j7 battery life problem

2:28

7:58

11:10

4:00

7:28

9:12

9:12

3:58

2:24

2:38

6:31

9:12

4:57

2:18

6:56

7:11

7:39

8:22

9:15

11:29

14:35

9:57

7:57

5:19

7:50

7:51

5:46

6:56

5:46

5:46

4:09

5:46

10:57

13:56

7:34

4:09

7:09

11:00

10:09

8:32