"Our two testing methods focused on measuring battery life after video playback and during general use. For the video playback testing (Figure 1), we left a three-hour YouTube video on and tracked the battery percentage over one, two, and three hours. Phone screen brightness was set to 100%, and auto-brightness and dimming were disabled. In addition, we used Wi-Fi only, notifications were turned off, volume was set to 50%, and the highest refresh rate was turned on."
"Our general usage testing consisted of 30 minutes of using a smartphone for general use cases, including 10 minutes of social media browsing (Instagram and Reddit), 10 minutes of gaming (Asphalt 9), and 10 minutes of video calling (Google Meet on iOS and Android for consistency). Battery life was then tracked after these 30 minutes."
"Out of all our tech devices, it's safe to say we use our phones the most. By extension, its battery life is one of the most important factors when considering which phone to buy or upgrade to."
Seventeen phones from six brands including Apple, Samsung, and Google underwent two battery-life tests: three-hour video playback and a 30-minute general-usage session. Video testing used a continuous three-hour YouTube video with screen brightness at 100%, auto-brightness and dimming disabled, Wi‑Fi only, notifications off, volume at 50%, and the highest refresh rate enabled. General-usage testing included 10 minutes each of social browsing (Instagram, Reddit), gaming (Asphalt 9), and video calling (Google Meet on iOS and Android) with battery percentage measured after 30 minutes. One phone led across both tests and received a lab award. Results can vary with peak brightness and other variables.
Read at ZDNET
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