When you realize the pen needs a new AAAA and you need to get the work done today. : r/Surface
Product Detail | kcda.org
Buy 1.2V AAAA Battery MN2500 E96 LR61 Gamepad Wireless Mouse Alarm Torch Ni-MH Rechargeable Batteries at affordable prices — free shipping, real reviews with photos — Joom
Buy Surface Pen for Microsoft Surface Pro 7 Pro 6 Surface Laptop Surface Book Surface Go Studio Surface Pro 5 Pro 4 Pro 3 1024 Levels of Pressure Sensitivity Including AAAA Battery