Introduction
Recently Lenovo released a new 95W charger to meet the charging needs of high power. ChargerLAB has gotten it the first time, and let's have a detailed review.
The Lenovo 95W Charger
The Lenovo 95W charger comes with input and output cords designed to be separated from the charger, and the cords can be replaced by international standards.
The shell of charger is frosted, and the lower left corner is printed with the 95W. The design of the top and bottom increases the overall stability.
The specifications sticker is pasted on the back.
Model: ADLX95YAC3A
Input: 100-240V~ 1.6A 50/60Hz
Output: 20V4.75A, 15V3A, 9V3A, 5V3A
Manufacturer: Acbel Polytech Inc., with CCC, KC, UL, and PSE certification marks.
This is the AC input.
DC output cord and the shell share the same plane with the base. The design of the connection is stable and can prevent the loss of the cable.
The USB-C port is in the frosted plastic with a small groove on the back and convex on both sides to increase friction. The cord has a red buckle, which can slide at will for storage.
The USB-C port is yellow.
The input cord length is approximately 90cm (35.43 inches).
The output cord length is about 180cm (70.86 inches).
The charger's size is about 126.05 X 55.15 X 29.37 mm (4.962 X 2.17 X 1.15 inches).
The weight is about 307.8g (10.85oz).
Protocols
The ChargerLAB POWER-Z KM002C finds that it supports PD3.0 fast charging protocol.
It supports four fixed PDOs of 5V3A, 9V3A, 15V3A and 20V4.75A.
Review
Compatibility Test
ChargerLAB will use tens of devices for compatibility testing to present readers with the most accurate data.
It is 15.21V 2.02A 30.76W when the charger is charging the iPad Air 5.
It is 19.84V 4.42A 87.79W when charging the MacBook Pro 16.
The TV mode of Switch supports PD fast charging but requires 15V3A and above, which means the charger should support 45W fast charging at a minimum. Lenovo 95W charger has successfully powered the TV mode with 15.24V 0.31A 4.85W.
Here comes the charging compatibility test of Lenovo 95W.
ChargerLAB's histogram shows the charging power of each product directly. The laptops naturally have the highest power.
Full Charging Test
We used the Lenovo 95W to fully charge the MacBook Pro 16 2021.
This is the charging curve of fully charging MacBook Pro 16 2021 with Lenovo 95W charger. The input was at about 91W in the first 46 minutes, and by 55 minutes, it gradually dropped to about 72W; by 1 hour and 14 minutes, it gradually decreased to 49W and ended at 2 hours and 1 minute. The maximum power is 19.85V 4.63A 91.96W.
The curve shows that Lenovo 95W charges 43% in 30 minutes, 79% in 1 hour, and it takes about 2 hours and 1 minute to fully charge the MacBook Pro 16 2021.
Standby Power Test
Nowadays, most users won't unplug the charger from the outlet after charging. So it's necessary to figure out if there is any power comsumption in this case and how much it is. Let's have a standby power test.
The power meter shows that the standby power consumption of the charger at 220V 50Hz is 0.095W, which equals about 0.83KW-h in a year. At 110V 60Hz, it is 0.05W, equaling about 0.43KW-h one year.
The lower the value of the standby power consumption, the better. The Lenovo 95W charger has a good performance at both 220V and 110V.
Conversion Efficiency Test
The charger is essentially a conversion device. So energy will be lost in the process of converting. Here comes the conversion efficiency test of Lenovo 95W.
The conversion efficiency shows the quality of the charger. The higher the percentage, the better. When charging the laptops, it has high efficiency and lower heat.
The conversion efficiency of the Lenovo 95W varies from 84.13% to 89.07% at 220V 50Hz and 84.27% to 88.56% at 110V 60Hz.
Ripple Test
Most chargers adopt switching power supply currently. And there will be ripples in the output current. The lower ripple means better quality.
The ripple test is divided into no-load (when the current is 0A) and loaded (when the current is non-0A).
When no-load, at 220V 50Hz, when the output is 5V0A, the highest ripple is 66mVp-p. And when the output is 20V0A, the lowest ripple is 40mVp-p.
At 110V 60Hz, when the output is 5V0A, the highest ripple is 60mVp-p. And when the output is 20V0A, the lowest ripple is 34mVp-p.
When loaded, at 220V 50Hz, when the output is 5V3A, the highest ripple is 100mVp-p. And when the output is 15V2A, the lowest ripple is 76mVp-p.
At 110V 60Hz, when the output is 20V4.75A, the highest ripple is 104mVp-p. And when the output is 15V2A, the lowest ripple is 66mVp-p.
Temperature Test
As we mentioned, in the process of converting AC to DC, energy will be converted into heat. We'll put it into a 25°C thermotank throughout the test and let it run for an hour with the power of 20V4.75A 95W.
An hour later, the maximum temperature on the A and B sides was 58°C under 220V 50Hz.
And the maximum temperature on the C and D sides was 59.7°C.
An hour later, the maximum temperature on the A and B sides was 60.1°C under 110V 60Hz.
And the maximum temperature on the C and D sides was 58.5°C.
The summarized data shows that the overall temperature is about 60 ℃, which is low enough for a 95W charger.
Here is the histogram.
Summary of ChargerLAB
The Lenovo 95W charger supports fast charging for most cell phones, tablets and laptops in the compatibility test. However, for iPhone 13 series, the power is around 7W, so it is recommended to use the Apple charger.
In the full charging test, it takes Lenovo 95W about 2 hours and 1 minute to charge the MacBook Pro 16 2021 fully. It also performs well at 220V and 110V in the standby power test. The conversion efficiency of the Lenovo 95W varies from 84.13% to 89.07% at 220V 50Hz and 84.27% to 88.56% at 110V 60Hz.
The conversion efficiency shows the quality of the charger. We know from the data that the higher the percentage, the better. When charging the laptops, it has high efficiency and lower heat.
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