Introduction
The Samsung Galaxy S25+ is a premium mid-to-high-end flagship smartphone designed for consumers who demand high performance, exceptional imaging capabilities, and top-tier display quality while also valuing stylish design and convenient features.
The Galaxy S25+ delivers powerful performance, featuring the Snapdragon 8 Ultra Edition (For Galaxy) processor with significant improvements in NPU, CPU, and GPU performance. It comes equipped with 12GB of RAM, with a 15% increase in cooling plate area for better heat dissipation. Additionally, it supports AI technology to optimize system performance and image quality, while the One UI 7 system offers an outstanding interactive experience.
Next, let's see the charging performance of the Samsung Galaxy S25+.
Product Appearance
The front of the box has a black-and-white silhouette of the phone, and Galaxy S25+ is printed on the bottom.
Specification information, S/N, IMEI numbers, etc. are posted at the bottom of the box.
The box contains the Samsung Galaxy S25+, a dual USB-C cable, and some documents.
The Samsung Galaxy S25+ features a 6.7-inch AMOLED display with a resolution of 3120 x 1440, a refresh rate of 120Hz, and Corning Gorilla Armor 2 glass.
It is available in Icy Blue, Mint, Navy, Silver Shadow, Pink Gold, Coral Red, and Blue Black.
It features a triple rear camera setup, including a 50MP wide-angle lens, a 12MP ultra-wide-angle lens, and a 10MP telephoto lens. The advanced noise reduction algorithm enhances low-light photography for clearer night shots. Preloaded with the One UI 7 system, it offers smart and convenient AI-powered features such as multi-screenshot capture and instant circle-to-search functionality.
The camera is raised, so you need to pay more attention to it in daily use.
The power button and volume button are both on the right side.
The bottom has a SIM card slot, USB-C port, microphone, and speaker.
The length is about 158.58 mm (6.24 inches).
The width is about 75.88 mm (2.99 inches).
The thickness is about 7.29 mm (0.29 inches).
The weight is about 188.7 g (6.66 oz).
That's how big it is in the hand.
The dual USB-C cable is made of TPE and has a smooth surface. Secure with paper shells.
The connectors and the cable are thickened to be more resistant to bending.
ChargerLAB POWER-Z KM003C shows it doesn't have an E-marker chip.
The length of the cable is about 1 m (3' 3.37'').
After wearing a third-party magnetic phone case and a third-party Qi2 wireless charger, you can see that the input power reaches 19W. Excluding the loss, the wireless charging power is about 15W, which meets the Qi2 standard.
The Samsung S25+ can provide 3.43W wired reverse output for small speakers.
It also supports wireless reverse charging up to 4.5W.
Compatibility Test
Next, let's do the charging compatibility test.
Original Charger
Charge with the Samsung 65W three-port charger with the original 3A cable, the power is about 13.44V 2.99A 40.16W.
Samsung chargers were tested one by one, and all were paired with the original 3A dual USB-C cable. The maximum voltage can reach 13V. Except for the 25W charger power limit, the power of the rest of the Samsung chargers is above 40W.
The power of chargers above 45W can reach 40W, and the actual power of a 25W charger is close to 20W.
Third-party Chargers
We also used a variety of third-party chargers during the test. Let’s take a look at the results.
The third-party chargers tested can generally reach a voltage of around 9V or 13V, and the power is between 14 and 41W.
We have compiled the test results into a bar chart. There are no compatibility issues. Most of the power is above 20W. For chargers that support the PD protocol, the power is generally around 23W, and chargers that support the PPS protocol have a higher power, between 25-41W, with a maximum of 41.81W, which has good compatibility.
Power Banks
The voltage of most power banks can reach 9V, while those that support high-power PPS can reach 13V, with higher power.
Compiled the test results into a bar chart. There are no compatibility issues. For power banks that support the high-voltage PPS protocol, the power is generally higher, up to around 40W.
Full Charging Test
We use the Samsung 65W three-port charger with the original 3A cable to fully charge the Samsung Galaxy S25++. And put them into a 25°C (77℉) thermotank throughout the test.
At first, the voltage is around 14V. The charging curve can be divided into five parts. The power is around 42W for the first 8 minutes. Then the power continued to fluctuate, reaching a minimum of 14W. Next, the power volatility drops to 34W, 29W, and 20W in turn. After that, the voltage drops from 14V to 9V. It takes 1 hour and 22 minutes to be fully charged.
We also turn it into another curve. The Samsung 65W three-port charger can charge the Samsung Galaxy S25++ to 50% in 23 minutes. And it can reach 80% in 41 minutes and 100% in 1 hour and 22 minutes.
Temperature Test
We also recorded the highest temperature on the front and back after charging for 10 minutes, 20 minutes, and 30 minutes.
10 minutes Charging
After 10 minutes, the maximum temperature on the front is 38.2℃ (100.76 ℉).
The back is 40.9℃ (105.62 ℉).
20 minutes Charging
After 20 minutes, the maximum temperature on the front is 38.0℃ (100.4 ℉).
The back is 39.5℃ (103.1 ℉).
30 minutes Charging
After 30 minutes, the maximum temperature on the front is 35.4℃ (95.72 ℉).
The back is 35.6℃ (96.08 ℉).
We also turn it into a bar chart. During charging, the temperature on the back is slightly higher than that on the front. At the tenth minute, the temperature on the back was the highest, reaching 40.9℃ (105.62 ℉). At the 30th minute, the temperature on the front was only 35.4℃ (95.72 ℉), and the power was about 20W, showing excellent temperature control.
Summary of ChargerLAB
Samsung Galaxy S25++ is equipped with a 6.7-inch AMOLED high-refresh screen with a resolution of 3120x1440px. It is equipped with Qualcomm Snapdragon 8 and integrated with Galaxy AI.
Samsung chargers above 45W and high-power PPS third-party chargers can reach a voltage of about 13-14V, and the maximum power can reach about 41W. Most of the other third-party chargers are also above 20W. Samsung S25+ adopts a high-voltage, low-current charging solution. Using the Samsung 65W three-port charger to charge it, it takes 23 minutes to charge to 50%, and it takes 1 hour and 22 minutes to fully charge. The highest temperature during the charging process is 40.9℃ (105.62 ℉), but the subsequent temperature drops significantly. The temperature after charging for half an hour is only about 35℃ (95 ℉), and the heat dissipation performance is excellent.
Related Articles：
1. Charging Review of Samsung Galaxy S25 Ultra
2. Charging Compatibility Test of Samsung Galaxy S25 Ultra
3. Samsung Galaxy S25 Battery Test
