Even if you have one of the top-of-the-line laptops as the Dell XPS, they only function for a couple of hours without a charger. So it is definitely a cause
The battery on your Lenovo laptop will stop charging if there are some issues with the AC adapter, the battery, or the battery controller. Other than that
Most people use laptops over desktops as they are portable due to their size and built-in batteries. So, it’s a real problem if your laptop suddenly stops