Amazfit bip lite teardown and battery replacement - YouTube
This just happened to my 2 year old Bip. It looks like the battery has bloated. Havent decided yet if I will have it repaired, or if I would buy a newer
New Original 3.8V 200mAh PL402120V Battery For Huami Amazfit Bip Smart Sport Watch - AliExpress
Xiaomi Amazfit Bip U Pro Smart Watch with Built-in GPS, 9-Day Battery Life | eBay