Huawei Watch GT (46MM) - Android Smart Watch - Dark Green - 2 Week Bat
Huawei GT2 Pro Replacement Battery: BatteryClerk.com
new battery HB442528EBC HB512627ECW For HUAWEI Watch 1 Watch1 For HUAWEI Watch 2 Pro 4G EO DLXXU Watch GT LEO B09+Tools|Mobile Phone Batteries| - AliExpress
Huawei's Watch 2 can last for weeks without its smarts | Engadget