The InFocus Vision 3 packs a big 4000mAh non-removable battery that is claimed to provide 22 days standby time. The phone doesn’t support fast charging but that wasn’t expected at this price point. The micro-USB charger takes a while to charge it from 0-100 percent. It took nearly 3 and half hours to fully charge the battery.
In the PC Mark test, the phone lasted about 13 hours and 27 minutes and scored 3000 points in Work 2.0 Performance test. During the 30 minutes game-run, the battery drained nearly 4-5 percent. In video loop test, the InFocus Vision 3 gave an estimate of 11 hours with a full HD movie played in VLC and brightness increased to its maximum level.
In the real-life test, the phone promises more than a day’s worth of usage for average and moderate users. During our test, we were able to get most of the basic tasks done (sending emails, replying to the texts on WhatsApp, a few Insta & Facebook posts, receiving calls etc.) before winding up for the day on a single charge. Overall, I would term the battery life quite good.