One of the issues people have constantly had with Samsung's Flip line of foldable smartphones is battery life, owing to the rather small cells fitted into all of them - the Galaxy Z Flip5 launched last summer has to make do with just 3,700 mAh, for example. Samsung seems to have been listening, and will increase the capacity for the upcoming Galaxy Z Flip6, expected to become official at the middle of this year. According to a new report, the next Flip will reach 4,000 mAh. Samsung Galaxy Z Flip5 That's still less than Oppo's Find N3 Flip which features a 4,300 mAh battery, but...
Source: https://www.gsmarena.com/samsung_galaxy_z_flip6_to_have_a_bigger_battery_than_the_flip5-news-61404.php