7.6V, 3500mAh, Li-Polymer Battery fits Microsoft, Surface 1927, Surface Go 2, 26.6WhBattery Fits Models: Surface 1927, Surface Go 2 Battery Part Numbers: Dynu01, G16ta047h Canadian Batteries have supplied the replacement batteries from Cameron Sino for nearly a decade. We have had zero instances of a product being damaged while using one of our batteries in that time. Batterybuyer is a genuine Canadian supplier. We operate many inventory systems, and all products over nine months old are disposed of and replaced with fresh new stock.