Siemens S25 Battery and Performance

Battery and Performance

Powering the S25 is a removable Li-Ion 650 mAh battery, which was standard during its era. The battery life offers a standby time spanning from 60 to 200 hours and up to 300 minutes of talk time, which was considered efficient. The battery and removable cover design permitted users to replace the battery unit themselves, boosting the phone's lifespan.