02-18-2019 05:57 AM
Welcome to the Community Forums.
You can get the instructions by downloading the hardware manual on the support site.
Internal batteries as commonly used among laptops nowadays do not require battery removal when always plugged in the charger. Automatic ac switches on direct power to bypass the battery.
If you would rather still want to remove the battery then just follow the steps as described from the manual.
I hope this helps answer your query.