Around February 2024 I traded in my ten‑year‑old MacBook Air 2013 for a Lenovo ThinkBook 14+ 2024 U7 version (certified model: ThinkBook 14 G6+ IMH). After using it for some time, aside from slightly rough build quality (uneven screen hinge, keyboard not perfectly level on the C‑side), the functionality and performance were quite good. Since I mainly use a desktop at home, this laptop spends most of its time in standby. Recently, however, I noticed that in shutdown state the battery drains rather quickly, on average 1%–3% per day. Searching online, I found many reports of similar issues from other laptop users, for example: https://learn.microsoft.com/zh-cn/answers/questions/5562378/win11，https://tieba.baidu.com/p/7795883672 and many more. These laptops show continuous battery drain after shutdown, and in Windows 11 battery usage records the screen is shown as being on for nearly 24 hours during shutdown periods.
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