Windows 10: Why is my battery capacity draining so fast?

I am using a microsoft surface laptop 5 and I run my laptop mostly on battery in school. I have experienced significant battery shortage since I bought it. 2023-06-03 - 2023-06-1050,337 mWh47,700 mWh2023-06-10 - 2023-06-1746,496 mWh47,700 mWh2023-06-17 - 2023-06-2446,529 mWh47,700 mWh2023-06-24 - 2023-07-0146,399 mWh47,700 mWh2023-07-0146,584 mWh47,700 mWh2023-07-0246,131 mWh47,700 mWh2023-07-0345,482 mWh47,700 mWh2023-07-0446,305 mWh47,700 mWh2023-07-0545,719 mWh47,700 mWh2023-07-0646,490 mWh47,700 mWh2023-07-0746,111 mWh47,700 mWh2023-07-0845,619 mWh47,700 mWh2023-07-0945,487 mWh47,700 mWh20

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Battery drains fast

After updating my Lumia 535 to Windows 10 from 8.1 battery drains too fast. It also take more charging time than before version(8.1). After charging the phone the battery drains too fast and hardly runs for 4-5 hours.

 

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