# How long does the Samsung Galaxy S25 Ultra battery last on a single charge?

> Expert answer about Samsung Galaxy S25 Ultra battery performance

*Published: 2026-03-19 | Updated: 2026-03-19 | Source: https://shopsavvy.com/answers/samsung-galaxy-s25-ultra-battery-life-screen-on-time*

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## Product: SAMSUNG Galaxy S25 Ultra Cell Phone, 512GB, AI Smartphone, Unlocked Android, AI Camera, Fast Processor, Long Battery Life, 2025, Titanium Black
**Brand:** SAMSUNG

The Samsung Galaxy S25 Ultra delivers excellent all-day battery life thanks to its 5,000mAh cell and efficient Snapdragon 8 Elite processor. In testing, the phone lasted over 17 hours, making it the longest-lasting Samsung phone to date.

**What to expect for screen-on time:**
- Average users: 8-10 hours of active screen use
- Light users (calls, messaging): 10-12 hours  
- Heavy users (social media, gaming): 7-9 hours

The adaptive 120Hz display intelligently manages power, but switching to 60Hz mode adds roughly 15% more battery life when you need it. Social media apps drain battery fastest due to background activity, while video streaming is surprisingly efficient.

**Important:** New phones need 4-6 weeks to optimize battery performance as Samsung's software learns your usage patterns. Don't judge battery life during the first month.

With the [Samsung 45W Super Fast Charger](https://www.amazon.com/dp/B0DGXLM4FT?tag=shopsavvy-20), you can go from empty to 70% in just 30 minutes, making it easy to top up during breaks.

The Galaxy S25 Ultra comfortably handles heavy daily use and stretches into a second day for lighter users. Battery anxiety is genuinely a non-issue with this phone.

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*Where this comes from: This answer is based on ShopSavvy's product database, real-time pricing from thousands of retailers, and analysis of user reviews to give you a well-rounded picture.*