The Samsung Galaxy S25 Ultra supports 45W wired fast charging, reaching approximately 70% in 30 minutes and full charge in about one hour.
Charging Specifications
| Method | Speed | Full Charge | |--------|-------|-------------| | Wired | 45W | ~60 minutes | | Wireless | 15W | 2-3 hours | | Reverse wireless | 4.5W | Emergency use |
Wired Charging
The 5000mAh battery charges quickly with proper equipment. Samsung does not include a charger, only a USB-C cable. For 45W speeds, use Samsung's 45W PD charger or any USB-C Power Delivery charger rated 45W or higher.
Wireless Charging
15W Qi wireless charging suits overnight or desk charging. Slower than wired but convenient for cable-free top-ups.
Reverse Wireless Charging
4.5W reverse charging powers Galaxy Buds, watches, and other Qi devices from the phone battery. Useful for emergencies.
Industry Comparison
| Device | Max Wired Speed | |--------|----------------| | Samsung S25 Ultra | 45W | | iPhone 16 Pro Max | 27W | | OnePlus 13 | 100W | | Xiaomi 14 Ultra | 90W |
Samsung's moderate speed helps preserve long-term battery health compared to ultra-fast charging.
Troubleshooting
If charging is slower than expected, verify the charger supports 45W Power Delivery, avoid using the phone while charging, ensure the device isn't overheating, and check cable condition.
We may earn a commission when you buy through these links, at no extra cost to you. How ShopSavvy makes money
How we researched this
Where this comes from: this answer draws on the product's published specifications and the reviews ShopSavvy collected for it, alongside prices from 2 retailers in ShopSavvy's price data, most recently seen Sep 21, 2025.
📚More About Galaxy S25 Ultra
Where to Buy
Considering the Galaxy S25 Ultra?
Here's our "TLDR" Review
Download ShopSavvy App
Compare prices across tens of thousands of stores, set price alerts, watch for deals by keyword, and much more.
Install ShopSavvy Browser Extension
Compare and track prices automatically while you shop online at thousands of websites.
More Answers
If you're still curious about the Galaxy S25 Ultra, here are some other answers you might find interesting:
- Is the Samsung Galaxy S25 Ultra screen durable?
The Samsung Galaxy S25 Ultra features Corning Gorilla Armor 2, providing excellent durability with unique anti-reflective properties. | Property |...
- What are the main differences between the Galaxy S25 Ultra and regular S25?
The Galaxy S25 Ultra and standard S25 share core technology but differ significantly in size, cameras, build quality, and price. | Spec | Galaxy S25 | Galaxy...
- Does the Samsung Galaxy S25 Ultra have a headphone jack?
No, the Samsung Galaxy S25 Ultra does not have a 3.5mm headphone jack. Samsung removed this feature from flagship phones in 2019. USB-C headphones: Connect...
- What storage options are available for the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra offers three storage options with no microSD expansion. Select storage at purchase since it cannot be increased later. | Storage |...
- How good is the Samsung Galaxy S25 Ultra for gaming?
The Samsung Galaxy S25 Ultra ranks among the best gaming smartphones, delivering flagship performance for any mobile game. | Component | Details |...
- What's the display quality like on the Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra features one of the best smartphone displays available, using Dynamic LTPO AMOLED 2X technology. | Feature | Details |...
- Does the Samsung Galaxy S25 Ultra overheat?
The Galaxy S25 Ultra can get warm during intensive use, though Samsung's vapor chamber cooling system manages heat effectively in most scenarios. The...
- Is the Samsung Galaxy S25 Ultra worth upgrading from the S24 Ultra?
The Galaxy S25 Ultra brings meaningful improvements over the S24 Ultra, though they're evolutionary rather than revolutionary. Performance: The Snapdragon 8...
- How many years of software updates will the Samsung Galaxy S25 Ultra receive?
Samsung provides seven years of software updates for the Galaxy S25 Ultra, matching Google's Pixel devices for the longest Android support available. | Type |...
- What Galaxy AI features does the Samsung Galaxy S25 Ultra have?
The Samsung Galaxy S25 Ultra includes a complete Galaxy AI suite available from launch, offering productivity, photography, and search enhancements. Now Brief...
