IEEE Access, April 2020, DOI: 10.1109/ACCESS.2020.2988728

Evaluation of Li-based Battery Current, Voltage, and Temperature Profiles for In-service Mobile Phones

Hayder Ali1, Hassan A. Khan1 and Michael G. Pecht2
1 Department of Electrical Engineering, School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
2 Center for Advanced Life Cycle Engineering (CALCE), University of Maryland, College Park, MD 20742, USA


A battery’s state of charge or runtime, and state of health or life, will depend on the product’s discharge current over time. For a mobile phone, the discharge current depends on the specific apps that are operated. This paper presents an experimental study to measure and evaluate the operational charge/discharge profile, temperature and terminal voltage of six Android apps; WhatsApp, Facebook, Facebook Messenger, Instagram, Snapchat, and TikTok on smartphones. The results show how the discharge current required by an app’s operation, will affect the battery runtime and life, due to the combined effect of discharge current and temperature.

This article is available online here.

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