While the Galaxy S25 Ultra's design could see a huge overhaul, the same can't be said of its battery. According to noted tipster Ice Universe, the Samsung Galaxy S25 Ultra will feature a 5,000mAh capacity battery and 45W wired charging speed. If those specs sound familiar, that's because they're identical to those offered on every Samsung flagship since the debut of the Galaxy S20 Ultra in 2020.
In other words, you can expect the average battery life of next year's model to be about the same as the current one. That’s not to say battery life hasn’t gotten better over the past four generations, as improved chips from Qualcomm have extended battery life by a fair amount, going from around 12 hours on a single charge with the S20 Ultra to nearly 17 hours with the most recent Galaxy S24 Ultra.
