You may have gotten a defective one. I would try to exchange it for another one and see if it still does that.
Doesn't sound like an issue with the battery if the computer isn't booting up correctly. Does it bring you to a login screen when you start up or does it just immediately boot to a black screen with a cursor? Also what operating system is installed?
Tells you it's trying to access storage. Could be hung up on something it thinks is a storage device, or could be a problem with your storage. Disconnect any USB devices you have connected. Especially external drives, but also include devices like printers. USB ports on printers are detected as mass storage devices. If it still does the same thing, I'd create some Windows 10/11 installation media and see if you can boot into it.
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