Samsung launched the Galaxy S9+ with the same battery as the Galaxy S8+. Some concerns were raised that a 3,500 mAh charge was not going to be that great, even with Qualcomm's promised 30% better power efficiency of the new Snapdragon 845. US owners can opt to get far longer power autonomy with latest ZeroLemon case that comes with 5,200 mAh Li-Po battery in it. The new case promises to add 115 hours of standby time, 30 hours of calls and 61 hours of music playback. These numbers naturally depend on a lot of things and the real life performance will vary. However, you can count...
Source: https://www.gsmarena.com/zerolemon_galaxy_s9_plus_battery_life_new_5200_mah_case-news-30082.php
