I have problem guys replacement battery

Hi guys after bought new battery copy hight quality the seller he say high quality from ali express after install the battery and when i try game or browsers only few minutes the laptop without AC turned off with him self Specs:

Replacement Laptop Battery BTY-L77 11.1V 7500mAh For Msi GT72 2QD GT72S 6QF GT80 2QE Series MS-1781 MS-1783 WT72 Battery.

Do i have wrong way or from battery or any idea or i missed something to do it

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Did you run the MSI Battery Calibration to make sure the firmware can see the new batteries cycle high low voltages. (last step of the guide?)

MSI GT72 2QE Dominator Pro Battery Replacement

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