Samsung supplier tipped prepping 3250/3750 mAh battery packs, may go into Galaxy S8/S8 Plus
The Samsung Galaxy S8 and S8 Plus battery capacities are claimed to be 3000 mAh and 3500 mAh, respectively, by the reputable rumormonger Evan Blass. This jibes with the notion that the phones will be barely larger than the Galaxy S7 and S7 edge, despite the wrappable 5.8" and 6.2" displays, on account of the thinned out top and bottom bezels, hence similar battery capacities. A new report out of Korea, however, tips that a Samsung battery supplier roadmap includes batteries with similar dimensions, but carrying 3250 mAh and 3750 mAh capacities.
The source claims that these two units might be going in the Galaxy S8 and S8 Plus, but adds that the battery specifications like final capacity can be corrected any time if Samsung needs to do so. Given the Note 7 drama, Samsung will probably be rather conservative with the battery density of the S8 and S8 Plus, so we find it a bit hard to imagine it will go for a higher capacity pack in the same footprint.
Moreover, the S8 will sport a frugal 10nm chipset, and a new, hopefully more power-sipping screen, so an increase in battery life can be achieved by less electron-hungry components, instead of simply bumping the battery juice.