The YI lithium Polymer Rechargeable Battery is compatible with YI 4K Action Camera and can be used as a spare or replacement.
Small and lightweight, this lithium Polymer battery delivers efficient energy with less energy loss and can be charged at any time inside the camera. With minimum capacity of (1200mAh min/typ), it provides a long use time even during video recording.
The YI battery has high temperature capability.
Up to 120 minutes of battery life with a high performance rechargeable battery (990/1020mAh min/typ)