Battery Life
The Grand M3 is equipped with a 2500 mAh non-removable Li-Po battery, which offers decent longevity for basic tasks—up to 675 hours standby on 2G and up to 20 hours of talk time on the same network. While its endurance on 3G decreases slightly, these figures suggest that the phone should comfortably last through a day's usage given its modest power demands.