Archive · 20 Sep 2026
Samsung Galaxy S27 Ultra Leak: 5,700mAh Battery, 60W Charging Rumors
Samsung may give its next Ultra phone a bigger battery than before.
Reports say the Galaxy S27 Ultra could have a battery marketed as 5,700mAh.
The Galaxy S27 Pro could have one marketed as 5,200mAh.
Both phones may support 60W wired charging.
These details come from certification records and battery listings, not Samsung itself.
The records do not say what kind of battery material is being used.
A bigger battery does not always mean a phone will last longer.
Screen efficiency, processor power use, software, and camera use also affect battery life.
Leaked certification records reportedly list the Galaxy S27 Ultra with a 5,534mAh battery, potentially marketed as 5,700mAh.
The Galaxy S27 Pro is reportedly listed with a 5,087mAh capacity, which could translate to a marketed 5,200mAh battery.
Both models are reportedly certified for 60W wired charging, although real-world speeds remain unknown.
The leaks do not confirm whether either phone will use silicon-carbon battery technology.
Samsung has not officially confirmed the phones, their battery capacities, or the rumored specifications.
- Who
- Samsung and the reportedly upcoming Galaxy S27 Ultra and Galaxy S27 Pro.
- What
- Leaks suggest larger batteries and 60W wired charging for both phones.
- Where
- China’s 3C certification records and other battery listings.
- Why
- The reported specifications indicate a possible battery-capacity upgrade beyond Samsung’s current 5,000mAh limit.
- Galaxy S27 Ultra reported capacity
- 5,534mAh nominal capacity, potentially marketed as 5,700mAh
- Galaxy S27 Pro reported capacity
- 5,087mAh nominal capacity, potentially marketed as 5,200mAh
- Wired charging
- Both models are reportedly listed for 60W charging
- Current comparison
- The Galaxy S26 Ultra has an advertised 5,000mAh battery
- Battery technology
- Silicon-carbon technology is rumored but not confirmed by the certification records
- Reported model numbers
- Galaxy S27 Ultra: SM-S958; Galaxy S27 Pro: SM-S957
- Official status
- Samsung has not confirmed the Galaxy S27 models or the leaked specifications