Hello, kazuko. Due to the nature of lithium battery properties, this can lead to battery degradation long-term. However, if you plan on using your laptop in this way, we recommend following this link to a Lenovo Support webpage to learn more about battery charge threshold in Lenovo Vantage: https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkbook-series/thinkbook-13s-iwl/videos/nvid500286-quick-tips-lenovo-vantage-battery-charge-threshold | This setting helps to protect the life or health of a battery.
7 months ago
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Lenovo Product Expert