Change Surface Pen batteries - Microsoft Support
Replace the AAAA battery with the positive (+) end of the battery pointing toward the tail end of the Pen. Line up the metal guide bump on the cap with the half-circle cutaway on the Pen body, and slide the cap back into place.
Change the batteries in your pen - Microsoft Support
Most digital pens for Windows are rechargeable or have a replaceable AAAA battery. Before you begin, check the instruction manual that came with your pen. For most pens, you can replace the battery by unscrewing the end of the pen.
Fix problems with charging Surface Slim Pen - Microsoft Support
If your Surface Slim Pen or Surface Slim Pen 2 is not charging, first start by looking at the LED light on the pen. The pen features an LED light that shows the battery and charging status. Here's what the various LED light indicators represent. Amber (fading in and out): Low battery.
Troubleshoot your Surface Pen - Microsoft Support
If the light on your pen isn’t turning on even after changing the batteries or charging, it may be time to replace your pen. To learn how to request a replacement, please refer to the Request a replacement pen section.
Replace Surface Pen tips - Microsoft Support
If you have a Surface Pen with no clip, a Surface Pen with single button on flat edge, or a Surface Slim Pen 2, you can replace the tips.
How to get service or repair for Surface - Microsoft Support
Learn how the service process for Microsoft Surface works and how to request service online if your Surface needs repair.
How to charge your Surface Slim Pen - Microsoft Support
Surface Slim Pen is powered by a rechargeable lithium-ion battery, so you don't have to worry about replacing batteries. With up to 15 hours of battery life on a full charge, the Surface Slim Pen is ready for all your creative and productive needs.
Use Surface Slim Pen 2 - Microsoft Support
Your Surface Slim Pen 2 can be charged by a Surface Laptop Studio, Surface Pro Signature Keyboard, and more. For a complete list of supported charging accessories, see How to charge your Surface Slim Pen .
Identify your Surface Pen and features - Microsoft Support
Find your Surface model to see which pen features will be available on your device. For info on changing the battery, go to Change Surface Pen batteries.
Surface Pen help & learning - support.microsoft.com
Change Surface Pen batteries. Learn how to change the batteries in your pen. More on changing batteries