1. Zachary Boddy's Avatar
    Good morning,
    My Pen for my Pro 4 recently died and I know it require a AAAA battery (bloody impossible to find) but does it also need coin cell batteries? I read something saying the Pen takes two 319 coin cells but I don't know where they are haha.
    09-10-2017 11:41 AM
  2. DOGC_Kyle's Avatar
    Most tablet pens with top buttons (eraser button) are actually two completely separate devices. Not sure about the Surface pen specifically (I only have an HP Wacom pen on hand), but I'm fairly certain it's like this.

    The "pen" part uses a AAAA battery, and connects directly to the digitizer when you touch the screen. This part has the pen input itself, and the two buttons near the tip.

    The "eraser" part uses two coin cells, and connects as a Bluetooth device to the tablet. This part ONLY has the eraser button that launches Windows Ink Workspace (or whatever you configure it to).

    As I said, I don't have a Surface pen, but on my HP pen, when you unscrew the pen and open the AAAA battery compartment, there's a small screw inside the AAAA battery spring. Take out that screw to get to the coin cells inside the eraser part.
    09-10-2017 07:25 PM
  3. Chintan Gohel's Avatar
    Good morning,
    My Pen for my Pro 4 recently died and I know it require a AAAA battery (bloody impossible to find) but does it also need coin cell batteries? I read something saying the Pen takes two 319 coin cells but I don't know where they are haha.
    They can be found but in the US only apparently - if shipping from US is cheap to your country, then order several plus any other item you fancy

    I did that once for getting cheap memory cards
    09-12-2017 12:48 AM
  4. Zachary Boddy's Avatar
    Well I live in the US there so I'm in luck. I guess I'll just have to scour the local Batteries & Bulbs store that I've never been to. Ever. Will I need to replace all the batteries at once?
    09-13-2017 06:14 PM
  5. Zachary Boddy's Avatar
    Most tablet pens with top buttons (eraser button) are actually two completely separate devices. Not sure about the Surface pen specifically (I only have an HP Wacom pen on hand), but I'm fairly certain it's like this.

    The "pen" part uses a AAAA battery, and connects directly to the digitizer when you touch the screen. This part has the pen input itself, and the two buttons near the tip.

    The "eraser" part uses two coin cells, and connects as a Bluetooth device to the tablet. This part ONLY has the eraser button that launches Windows Ink Workspace (or whatever you configure it to).

    As I said, I don't have a Surface pen, but on my HP pen, when you unscrew the pen and open the AAAA battery compartment, there's a small screw inside the AAAA battery spring. Take out that screw to get to the coin cells inside the eraser part.
    Thank you. Will I need to replace all three batteries at the same time?
    09-13-2017 06:14 PM
  6. DOGC_Kyle's Avatar
    No, the two parts are separate, so you only replace batteries in the part that needs it.

    So if the pen input stops working, but the eraser button continues to work, just replace the AAAA battery.
    09-13-2017 06:45 PM
  7. Zachary Boddy's Avatar
    No, the two parts are separate, so you only replace batteries in the part that needs it.

    So if the pen input stops working, but the eraser button continues to work, just replace the AAAA battery.
    There's a good chance I only need to replace the AAAA battery then. I believe it's still connecting, it's just not registering movements. So it's the digitizer, not the Bluetooth module.
    09-20-2017 08:14 PM

Similar Threads

  1. What's the difference on battery life moving from 10S to 10Pro
    By Windows Central Question in forum Ask a Question
    Replies: 12
    Last Post: 09-16-2017, 10:50 AM
  2. Should I buy the Surface Dial?
    By Al Sacco in forum Microsoft Surface Pro (2017)
    Replies: 17
    Last Post: 09-12-2017, 05:22 PM
  3. How do I get my surface laptop repair overseas?
    By Kaian Zhang in forum Surface Laptop
    Replies: 0
    Last Post: 09-10-2017, 10:54 AM
  4. Microsoft should follow this recipe for 'Surface Phone' success
    By WindowsCentral.com in forum Windows Central News Discussion
    Replies: 0
    Last Post: 09-08-2017, 08:10 AM
  5. Does my PC support Surface Dial?
    By Ayrton01CZ in forum Microsoft Surface Dial
    Replies: 2
    Last Post: 09-08-2017, 04:35 AM
LINK TO POST COPIED TO CLIPBOARD