Firstly, refrain from attaching it to a power source, secondly contact Razer support and visit the nearest Razer service centre for the issue. They will help you with the same.

Regards, 
Hades

Hi aeroDarkSalmonsource560,

I'm sorry to hear about your Razer Blade 15 Base (2020) battery swelling issues. How long was the unit plugged? Did you charge the laptop overnight? How many hours is the unit used per day? Kindly visit this article for your reference. I can create a case and escalate your concerns to our Laptop Support Team for a battery replacement request. Please PM me with the following information below:

Full name:
Email:
Mobile/Phone Number:
Laptop serial number:

Street Address:
City:
State/Provinces:
Postal/ZIP Code:
Country:

Place of Purchase: (The vendor's website or physical store address)
Date of purchase:
Subscribed to Razer Care?: Yes/No

Battery report and create an energy report from your laptop. Follow the steps link.
Photos of the laptop showing the damage to the device.
Save the shareable file via Google Drive listed here.

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