Rechargeable Ni-MH AAAA Battery + AA AAA AAAA Ni-MH Universal LED USB Dual Charger for Surface Pen Active Stylus Flashlight - AliExpress
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Amazon.com: PowerTrust AAAA Battery for Surface Pen, Rechargeable AAAA Battery for Active Stylus LED Flashlight and More Devices (4) : Health & Household
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Microsoft Surface Pen - See Compatibility of Stylus | Surface Pen in Black or Platinum - Microsoft Store
Kastar 1-Pack Ni-MH Battery 1.2V 400mAh Replacement for Active Stylus Pen, Surface Pen Battery, Surface Pro 3/4 Pen, Digital Pen MS (Microsoft) Surface Pen, Dell Digital Stylus, Bamboo Ink Pen Battery -
Amazon.com: PowerTrust AAAA Battery for Surface Pen, Rechargeable AAAA Battery for Active Stylus LED Flashlight and More Devices (4) : Health & Household
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Kastar 1-Pack Ni-MH Battery 1.2V 400mAh Replacement for Active Stylus Pen, Surface Pen Battery, Surface Pro 3/4 Pen, Digital Pen MS (Microsoft) Surface Pen, Dell Digital Stylus, Bamboo Ink Pen Battery -
Rechargeable Battery AAAA Ni-MH Battery with Charger for Surface Pen / Stylus, Alarm Clocks, Flashlights, Bluetooth Headset - AliExpress
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Amazon.com: Kastar 4-Pack Ni-MH Battery 1.2V 400mAh Replacement for Active Stylus Pen, Surface Pen Battery, Surface Pro 3/4 Pen, Digital Pen MS (Microsoft) Surface Pen, Dell Digital Stylus, Bamboo Ink Pen Battery :
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Amazon.com: ANVOW Smart AAAA Battery Charger with 2 Counts Rechargeable AAAA Batteries - Ni-MH 1.2V 400mAh 1200 Cycles Surface Pen Active Stylus Rechargables Battery : Health & Household
Surface Slim Pen 2 - Microsoft Store
PicklePower 8 Pack AAAA Rechargeable Battery for Surface Pen, Active stylus pens, Lenovo pen, Asus stylus - AliExpress
a bit of a con: surface pen batteries running out in the middle of a class : r/Surface
Amazon.com: Rechargeable AAAA Batteries, 4 Counts 500mAh AAAA Batteries with Charger for Surface Pen, Active Stylus, Touchscreen Pen, Google Pixebook Pen : Health & Household
Pickle Power 500mAh AAAA Rechargeable Ni-MH Battery +LED USB Charger for Surface Pen,Active stylus pens,Digital pen - AliExpress
Amazon.com: EBL AAAA Rechargeable Batteries, 1.2V 400mAh Ni-MH AAAA Rechargeable Battery for Surface Pen, 4-Count : Health & Household
AAAA Rechargeable Battery,500mAh Ni-MH Battery for Surface Pen Active Stylus Battery for Bluetooth Earphone Alarm Clock - AliExpress
Rechargeable Battery AAAA Ni-MH Battery with Charger for Surface Pen / Stylus, Alarm Clocks, Flashlights, Bluetooth Headset - AliExpress
How to remove and replace the Surface Pen's battery | Windows Central