Review on Uogic Pen for Microsoft Surface – Slim, Lightweight, & High Sensitivity: Ideal for Surface Pro/Go/Book/Studio/Laptop by Vladimir Castillo

No complaints. Slim and cooler design than Microsoft pen. Accurate, responsive and great quality feel. negative except that I've been using it for more than 10 hours and still have no charging issues. Plus a 15 minute charge (from your Surface) can give you several hours of use. So it's hard to imagine that charging will prevent you from using it. If you're looking for a surface pen don't go straight to the MS brand, start here, I doubt you need to go further.