If a file sounds too good to be true—like "unlocking" a physical component via a ZIP file—it is almost certainly a scam. Delete "Unlock Battery.zip" immediately

If you find a website or a video link urging you to download a file named Unlock Battery.zip , you should proceed with extreme caution. Downloading unverified compressed archives from third-party sources carries severe risks. ⚠️ Malware and Ransomware Delivery

Power the device back up. Your software gauge should now accurately reflect the physical state of your hardware.

Microsoft has a built-in battery driver reset:

OS developers create software "buffers." When your phone says 100%, the internal chemistry is safely managed slightly below its volatile maximum to ensure the battery lasts for years instead of months.