We’re talking about an X (Twitter) user named Ice Universe, who has a reliable track record of Samsung leaks. In a post he recently published, he denied the claims that the Galaxy S24 Ultra will come with a 5,500 mAh battery.
Another source confirmed
It looks like the Galaxy S23 Ultra will have the same capacity battery as the Galaxy S22 Ultra. Although this will disappoint many people who expect a significant improvement in the battery, it is stated that it is possible for Samsung to increase the battery life without increasing the battery size.
Another source responding to Ice Universe’s post also confirmed that the Galaxy S24 Ultra will have a 5,000mAh battery with 45W fast charging support. Probably 65W charging expectations will also fall into the water. The Galaxy S24 Ultra is expected to be announced in early 2024 alongside the Galaxy S24 and Galaxy S24 Plus.