3C may have certified some Samsung Galaxy S21-series batteries
Various leaks have brought up the prospect of a Samsung Galaxy S21 series, even though their predecessors are not even through their product cycle yet. The latest rumor hints at battery sizes for 2 variants, which may be called the S21 and S21+ (or Plus) on their own launch.
It comes in the form of alleged new submissions from Samsung to the regulator 3C for 2 new smartphone components called EB-BG991ABY and EB-BG996ABY. Going by this OEM's usual naming convention, these are likely batteries for 2 phones called the SM-G991 and SM-G996 respectively.
Accordingly, these may be upcoming flagship devices - with 5G, no less, as the S20 and S20+ 5G are the SM-G981x and SM-G986x respectively. Then again, should this be the case, their batteries may be underwhelming for this category.
3C rates them at 3880mAh for the "S21" and 4660mAh for the "S21+", which is no great change compared to their putative forebears. Then again, this may be their rated capacities, and may be magnified somewhat in their official typical specs.