According to a report from Android Police, it seems that Samsung has told them that with the Galaxy S8 and S8+, the batteries in these phones will apparently degrade at a slower rate compared to its predecessor, the Galaxy S7. From what Samsung told them, it seems that after a typical year’s worth of charges and discharges, the Galaxy S8 will be able to maintain 95% of its capacity.
This is versus the Galaxy S7 which maintained about 80% of its total capacity. This means that in theory, you should be able to keep the handset around longer without having to worry about its battery losing its charge too quickly. Unfortunately Samsung did not detail exactly how they accomplished this, so we guess we’ll have to take their word for it for now.
In case you did not know this, lithium batteries have a natural tendency to degrade over time. This is why you might notice that some of your older devices no longer hold their charges as long as they did when they were new. While there are advancements made to batteries, for the most part lithium ion is still more or less the standard when it comes to portable devices.