Battery Life
The Siemens C35i used a removable NiMH battery with a capacity of 500 mAh. The battery provided a stand-by time ranging from 50 to 180 hours and a talk time between 90 and 300 minutes. This impressive battery longevity was due in large part to the limited power draw from its monochrome display and lack of power-hungry features, catering to users who prioritized long-lasting performance over advanced capabilities.