New rumor says the Samsung Galaxy S7’s battery unit will be capable of churning out 2-day long battery life.

Not long ago, the Russian tech blogger Eldar Murtazin said the Galaxy S7 battery will be capable of playing 17 hours of back-to-back videos after a single charge. To top it off, all the while, the video will be able to run with full brightness.

Recently, Murtazin has tweeted an image saying the S7 will be able to offer up to 48 hours of battery life after a single re-charge. Going by the image, the screen-on time was about four and a half hours, while the brightness was seemingly set at 75 percent.

The Galaxy S7 is believed to feature a 3,000 mAh battery unit, while the predecessor Galaxy S6 comes with a meager 2,550 mAh cell. Phone Arena, meanwhile, said the Galaxy S6 was able to provide up to 7 hours and 14 minutes of battery life in its custom test. In comparison, the 3,900 mAh battery clad Motorola DROID Turbo was apparently able to offer 10 hours and 42 minutes of charge.

Furthermore, the Galaxy S6 successor will run Android 6.0 Marshmallow out of the box. This is guaranteed to enhance the battery life further because of Doze. With Marshmallow’s Doze feature on board, the handsets will be put to deep sleep by cutting down the apps running at the background when not in use.

As for release date, both Galaxy S7 and Galaxy S7 Edge will be introduced on Feb. 21 at the Samsung Unpacked event, just a day before the MWC 2016.

Here’s the tweet from the Russian blogger pointing to the 48 hours of battery life:

Here is the old tweet from Eldar Murtazin talking about the 17 hours of video playback: