Can Samsung launch the Galaxy S26 Ultra with 5,400 mAh battery in the US?
Galaxy S26 Ultra is rumored to receive a battery upgrade, and what if Samsung takes it to 5400 mAh? Even if the company upgrades the battery to 5400 mAh, can the US variant of the Galaxy S26 Ultra get it in the US?
Recent development signals mixed assumptions, with some claiming an mAh consistency and some assuming a boost from 200 mAh to 400 mAh. Beyond technological hurdles, the company also needs to satisfy certification constraints.
Samsung has made a huge jump from a 4,100 mAh battery in the Galaxy S10 Plus to a 5,000 mAh battery in the Galaxy S20 Ultra. Since then, we haven’t seen Samsung boost the battery capacity of its biggest flagship phone.
While 5,000 mAh to 5,400 mAh doesn’t sound like a major switch, it requires double the engineering efforts. The company will have to make architectural changes under the hood to make this upgrade happen.
Increasing the battery size could result in a thicker body, which Samsung couldn’t pursue. The S26 Ultra is rumored to be even thinner than the S25 Ultra despite featuring Qi2 charging magnets inside the phone’s back panel.
Samsung might consider adopting silicon-carbon or silicon-anode cells to keep the battery pack thin and increase capacity. However, the company stays cautious while considering such changes after the Note 9 incidents.
Apart from this, Samsung needs to comply with US and EU limitations. It’s not impossible to bring a phone with an over 5,000 mAh battery, but there’s a massive structural change that needs to be made with the battery cell.
A battery with up to 5,200 mAh can be used in US phones, but if the vendor wants to go beyond, they need to make changes. OnePlus 13 brings a dual-cell battery that offers an overall capacity of 6,000 mAh, and it’s a living example.
Firstly, a battery upgrade that takes the capacity beyond 5,000 mAh sounds just a dream at Samsung. And if the company raises the bar, it would be interesting to see what changes it has made to make it happen.
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