Hi, i installed a new battery (ordered from ifixit) and installed it into my macbook. All done without failure. Battery...

Hello! I have the same problem... SMC Reset done, but no change. Battery removed, pressed Power Button, no change. When it´s about 7-9%, the macbook turns off without warning. Any more ideas what i can do? It´s a new battery from ifixit (SMP). Thank you!