Battery Life
The battery life of the Yezz Billy 4 is provided by its 1300 mAh removable Li-Ion battery, a choice that permits flexibility in user-replaceable power options. While standby time is up to 350 hours on 2G and 300 hours on 3G networks, talk time ranges up to 7 hours and 4 hours 30 minutes on 2G and 3G networks, respectively. Despite these figures, the modest capacity indicates frequent recharging for active users.