The HTC U11 is powered by a 3000mAh battery which supports fast charging. Unfortunately, we ran PCMark’s battery test three times on the smartphone, but it kept crashing, so we don’t have the definitive battery benchmark for this phone. What we do have, however, is the result of our video playback test. The phone managed to play our Full HD test video for around 11 hours before dying. During this time, the phone had a sim card and was connected to Wi-Fi, but the Bluetooth radio was turned off. There is a growing sentiment that VLC is not as battery efficient as MX Player, but we’ve tested the HTC U11 with VLC as that has been our choice of app since day 1 and it helps keep the data in sync.
In terms of real world usage, it was surprising that a 3000 mAh battery was able to power a 2560×1440 display for an average of 3.5-4 hours of Screen on Time. The phone easily lasted a little over a day’s of use. Typically, it would come off the charger around 8 a.m. and would last till an average of midnight. One of our screenshots of battery usage was taken at 2:21 a.m. while the other around 10:30. The usage patterns can be seen in the screenshots below.
Overall, the HTC U11 gives more than satisfactory battery life. Despite the heavy usage, it lasted us longer than our work day, which is great. The one area where the HTC U11 was a little disappointing was the charging. Despite being Quick Charge enabled, the phone takes almost 2 hours to charge from 0 to 100 percent. While this is a standard number for all QC3.0 devices, we somehow feel the OnePlus 5’s ability to charge its larger battery in half the time is real benchmark for the industry as a whole. If you leave out the relatively slow-ish charging, you’ve got yourselves a phone that will otherwise leave you very pleased with the battery life.