So i charge my Lenovo Ideapad Flex 5 with; CPU:AMD Ryzen 7 5700U with Radeon G GPU: AMD ATI 04:00.0 Device 164c . For an hour or so and it is completely full. I turn off the laptop to go about my day, and the next day it is about 20% lower then what I left it at, how would i go about fixing this.
It charges thru USB C, but i have to have the power plugged in first before powering on to get it to charge. If there is a fix for this as well I would gladly welcome it. So i can just plug it in after the laptop is on.
+1 for installing tlp
Also check your bios, some laptops have an option to allow usb charging when the laptop is off, this can drain the battery as well, as they system is still running in low power mode to provide charging.
The most common cause of a battery that drains fast on a laptop is an old battery that needs replacing. Also, your battery could drain quickly when running resource-heavy programs or when the battery settings are not optimized. Peripherals can also contribute to this problem. Laptop batteries are one of the essential parts of a laptop. However, they are also one of the most vulnerable. Batteries can overheat and become damaged quickly if not taken care of properly. Overheating can cause lasting damage to the battery and reduce its lifespan.