This device has a fast charging 3000 mAh Li-Ion non-removable battery with Adaptive Fast Charging Support (100% 120 min).
For fastest charging times, use the Adaptive Fast Charging charger that came with the device.
To turn on Fast charging, navigate: Apps > Settings > Battery then tap the Fast cable charging switch to turn on .
Ensure the cable is inserted correctly into the charging base for optimal performance..
Battery life depends on the network, signal strength, temperature, features and accessories used.
It's common for batteries to be warm from use or charging.