Battery Life
The i-mobile 638CG housed a removable Li-Ion 1050 mAh battery, which offered substantial longevity for basic mobile needs. With a standby time of up to 400 hours and a talk time of up to 8 hours and 30 minutes, the phone ensured users could get through their day without frequent recharging—a crucial aspect for those who valued long-lasting battery life as a primary phone feature.