In a video on the official Ulefone Youtube, a fully-charged Ulefone Power was engaged in the draining test where 30-minute playback of a 720P online video consumed 5% of the battery, 30-minute playing of Asphalt 8 cost another 5%, and with the double-LED torch and display on for another 30 minutes, the battery drained to 86%. Draining from 30%, the battery gave similar performance. And the final 6% of power was even able to support 33 minutes of online video. The test is enough to indicate one day of immoderate heavy use. And for light use, Ulefone claims 4 days.
The video was made not without stop since Ulefone’s DSLR needs cooling, but every single step was constant, according to Ulefone, who have released both speed-up and normal speed videos.
To explain why Ulefone Power has stable battery performance, Ulefone showed us how the non-replaceable Sony li-polymer battery look like. Connected to the battery, there is a tiny circuit board which houses a devoted controller chipset to make battery have stable power input and output besides offering over-current protection. With it, Ulefone Power will be free of fast draining problem that is often caused by incorrect indication from software.