Back to stock rom now battery loading problems

Hi, i got back to sammy stock rom, and sometimes my phone doesnt load to 100% in one night.
It stopped at 40% this morning...

I had this problem before, then i flashed a custom rom again and the problem was solved..

Does anyone knows what to do ?
It can't be the charging cable becouse i dont have this problem with custom rom's, and i really had it with custom roms so i want to stay with stock rom