A Step-by-Step Guide to Changing the Battery in a Surface Pen

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Quick guide to replacing the batteries in a Surface Pen

Co-authored by Hannah Dillon Reviewed by Stan Kats

Last Updated: December 19, 2025 Fact Checked

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• Surface Pens with No Clip
|
• Surface Pens with One Button
|
• Surface Pens with Two Buttons
|
• FAQ
|
• Video

|Show more |Show less

Is your Surface Pen running low on battery? While it might seem difficult to replace your Surface Pen's battery, it's thankfully a very easy process. The steps differ slightly depending on which model of Surface Pen you have, but in this article, we cover how to change the batteries for all of them.

Changing Your Surface Pen Battery

You can replace the battery in any Surface Pen model by removing the pen's end. In a Surface Pen with no clip, you can pull the pen cap off. In a Surface Pen with one button, turn the pen cap until you hear a click, then pull it off. In a Surface Pen with two buttons, the pen cap screws off.

Steps

Section 1 of 4:

Surface Pens with No Clip

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1. 
   1
   Pull the top end of the pen off. Grip both ends of the pen firmly and pull. The two parts of the pen should separate easily.
2. 
   2
   Remove the battery from inside the pen. Make sure to dispose of the battery properly.
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3. 
   3
   Place a new battery inside the pen body. You'll need a AAAA battery for your Surface Pen. When replacing the battery, ensure the negative side (marked with a -) is inserted into the pen first. The positive end should be facing out.

   • AAAA batteries can be purchased from most large stores, or you can buy them online.
4. 
   4
   Insert the end of the pen back into the body of the pen. The flat sides of the pen should be aligned before you try to put the pen back together.
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Section 2 of 4:

Surface Pens with One Button

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1. 
   1
   Turn the eraser end of the pen about 30 degrees counter-clockwise. You'll feel the end of the pen click into place.
2. 
   2
   Separate the pen body and pen end. If you can't remove the end of the pen, rotate the end a bit more until you feel it click into place.
3. 
   3
   Remove the battery from inside the pen. Ensure that you dispose of the battery properly.
4. 
   4
   Place a new battery inside the pen. Make sure you're using a AAAA battery. When replacing the battery, ensure the negative side (marked with a -) is inserted into the pen first. The positive end should be facing out.
5. 
   5
   Insert the end of the pen back into the pen body. The metal bumps on the pen cap should line up with the half-circle cutaway on the pen's body.
6. 
   6
   Turn the cap until the flat sides are aligned. You'll turn the cap approximately 30 degrees clockwise to get it back to its normal position.
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Section 3 of 4:

Surface Pens with Two Buttons

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1. 
   1
   Unscrew the top of the pen. You'll be able to separate the two parts of the pen once you unscrew them.
2. 
   2
   Remove the battery from inside the pen. Make sure to dispose of the battery correctly.
3. 
   3
   Place a new battery inside the pen body. You'll need a new AAAA battery to insert into your Surface Pen. When replacing the battery, ensure the positive side (marked with a +) is inserted into the pen first. The negative end should be facing out.

   • If you want to replace the coin batteries inside the pen cap, continue reading. Otherwise, screw the pen cap back onto the pen body to use your Surface Pen again.
4. 
   4
   Use a jewelry screwdriver to open the battery case inside the cap. To do this, place a Phillips jeweler's screwdriver into the battery case inside the cap, then twist to unscrew it. You'll need to insert the screwdriver through the spring to get to the battery case screw.

   • If you don't have a jewelry screwdriver, you can open the battery case by inserting your fingernail or a flat object (such as a flat-head screwdriver) into the notches around the edge of the battery case, then turning it.
5. 
   5
   Replace the old batteries. Remove the batteries by pulling out the battery casing, then tapping the old batteries into your hand or onto the table. Make sure the dead batteries are disposed of properly. Then, insert the new 319 coin batteries into the battery case, with the negative side facing the pen's tip.

   • 319 coin batteries can be purchased in-store or online.
6. 
   6
   Put the battery case back in the pen cap. Make sure the batteries don't flip over while you're in the process of screwing the battery case back into place.
7. 
   7
   Put the pen cap back on the pen. Screw the two parts of the pen together until they are sufficiently tightened (but not too tight).
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Section 4 of 4:

FAQ

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1. 1
   Can I change the battery in my Surface Slim Pen or Slim Pen 2? No, you cannot change the batteries in either of the Surface Slim Pen models. These styluses are rechargeable.
2. 2
   What do I do if my Surface Pen doesn't connect after changing the batteries? You'll likely have to re-pair your Surface Pen with your Surface. Surface Pens connect to Surfaces via Bluetooth.
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