https://wccftech.com/samsung-galaxy-s21-ultra-battery-capacity-leak/

Just a couple of days ago, we reported about the rumored camera configuration belonging to the Galaxy S21 Ultra and judging by its name, it can be assumed that this upcoming flagship will tout a large display, like its predecessor, the Galaxy S20 Ultra. However, it doesn’t appear that Samsung is interested in upping the battery capacity of this model compared to the current generation, according to the latest leak.

New information from GalaxyClub talks about the Galaxy S21 Ultra with the model number (SM-G998) using a battery with the model number EB-BG998ABY. According to the leaked details, the battery has a rated capacity of 4,885mAh, so Samsung will likely market that the flagship touts a hefty 5,000mAh cell, just like the current-generation Galaxy S20 Ultra.