Battery Life
Powered by a 2800 mAh non-removable Li-Po battery, the One E9+ offers a solid battery performance concerning its capacity. Official stats claim up to 21 hours and 30 minutes of talk time on 2G and up to 14 hours and 20 minutes on 3G. Standby time impresses too, reaching up to 617 hours on 3G. In real-world usage, it achieved an endurance rating of 59 hours, which was quite standard for its time.