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Review of power supply for Lenovo Go USB-C laptop
I use a power bank daily, and only the most powerful options can handle the needs of charging my laptop or recharging my portable gaming devices.
Although there are plenty of great options in our guide best power banksMost don't have built-in cables, so you'll have to carry extra accessories with you on the go.
And that's where Lenovo Plug-in slots, up to 65W of output power, and a built-in cable that hides inside the power supply itself, so it's ready to go at a moment's notice.
Apart from the cable, it also has a USB-C and USB-A port and can charge three devices at the same time.
The Lenovo Go has a typical capacity of 20,000 mAh, 74 Wh (though the device itself says 77 Wh), which allows it to fly without permission, and also allows you to charge your laptop at least once or keep your phone charged for days. This is also enough to fully charge a 50Wh battery on the Steam Deck.
At 170 × 72 × 23 mm (6.69 × 2.83 × 0.91 in), it's quite compact, and the weight of 390 grams (0.86 lb) is fairly typical considering the capacity. The design is slim enough to fit into a bag (including a briefcase-style laptop bag) without adding bulk.
An integrated 44 cm (17.3 in) USB-C cable wraps around a recess in the power supply for storage. Although it is safe and easy to deploy, it is very difficult to return neatly into place once charging is complete.
The USB-C end is a bit bulky, so it may not fit into some limited-access USB-C ports, such as phones with thicker cases.
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The power supply uses a simple four LED system to display the remaining capacity in 25% increments, which works fine but isn't as good as a digital readout. The plastic body feels solid in the hand and is quite durable, and despite it rattling around in my bag for weeks, it shows no signs of excessive wear.
Lenovo's power bank faces stiff competition from banks with similar features, often being slightly cheaper, for example. Anker power bank 20,000 mAh, 87 W. The Lenovo is a bit thinner (but longer) and lighter, but it needs to be selected at the point of sale to appreciate the comparative value for money.
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The Lenovo Go USB-C laptop power supply outputs 5V 3A 9V 3A 15V 3A and 20V 3.25A USB PD3.0 voltage on the USB-C cable and USB-C port, meaning it can easily charge most phones, laptops, and other devices like portable gaming machines at up to 65W. The USB-A port supports QC3.0 protocol with voltages of 5V, 9V, 12V or variable from 3.6V to 12V and power up to 18W.
Notably, it doesn't support PPS (Programmable Power Supply), so it won't output 45W of power. Samsung Super fast charging how Iniu P50 can.
Lenovo's power bank also doesn't output 12V to the USB-C ports, which isn't an issue for most users, but it's still worth mentioning. There aren't many devices that only require 12V USB-C charging, but for example, a 12V option is needed for the fastest charging possible. DJI Batteries for mini drones.
So while the Lenovo doesn't support the latest protocols, under normal use it's more than capable of quickly charging any of your devices.
Power supply for Lenovo Go USB-C laptop: price and specifications
You can buy a Lenovo power supply directly from Lenovo or from other marketplaces and retailers.
The list price is $140.99 / £84 / AU$138, but they're often on sale for much less during sales, so it's worth waiting for the discount if you don't need it right away.
The power supply comes with a standard 1-year warranty, and we're a little disappointed that Lenovo didn't offer at least 2 years.
|
Price |
$140.99 / £84 / AU$138 |
|
Capacity |
20,000 mAh / 74 Wh |
|
Single port output |
65 W |
|
Number of ports |
3 |
|
USB-C |
2 inputs/outputs |
|
USB-A |
1x |
|
Dimensions |
170 × 72 × 23 mm (6.69 × 2.83 × 0.91 in) |
|
Weight (measured) |
391 g (0.86 lb) |
|
Phone fee |
3-4 times |
|
Laptop cost |
0.5-1 times |
Lenovo Go USB-C laptop power supply: test results
Many batteries make bold claims, but fail to live up to expectations in real-world testing. So to weed out errors, I perform comprehensive testing to check charge voltage, confirm protocol support, and record capacity tests.
Overall, Lenovo's power bank performs well because it's thinner and lighter than many options with similar specs and has a built-in cable.
|
Test |
Useful capacity |
Efficiency |
Check |
|---|---|---|---|
|
Laptop charging 65 W |
61.5 Wh |
83.1% |
3.5 / 5 |
|
Laptop charging 30W |
62.5 Wh |
84.4% |
3.5 / 5 |
|
Phone charging 20W |
65.3 Wh |
88.2% |
4 / 5 |
|
10W charging |
68.1 Wh |
92% |
4.5 / 5 |
When charging a laptop at 65W, the Lenovo Go delivers 61.5Wh of the available nominal 74Wh, giving a typical efficiency rating of 83.1%. Lenovo also rates the battery at just 48 Wh with an output of 65 W (20 V, 3.25 A), so the real-world test results of 61.5 Wh are much better.
However, I will note that once the remaining capacity reaches approximately 45%, it will switch to a slower charging speed to protect the battery cells. This is fairly typical, and when tested on a used laptop, lower average power consumption does not trigger this mode.
With an average output power of 30 W, the efficiency of the laptop is slightly higher at 84.4%.
When charging the phone at 20W, Lenovo's power supply achieved an excellent efficiency of 88.2%, and with slow charging at 10W, it can deliver 92% of its rated power.
Lenovo online rates the power bank at 74Wh, but the power bank actually has a capacity of 77Wh. This is a slight power overrun on Lenovo's part, which is good, and for the efficiency calculations above I used the 74Wh rating.
When pushed hard with a constant maximum power output until it runs out of power (such as when charging a laptop), the Lenovo power supply reached a warm but not problematic temperature of 42°C (108°F), while when charging the phone it only reached 28°C (82°F). While it's usually best to charge a laptop on a desk, the Lenovo power supply stays cool enough that I have no problem using it in my bag.
The power bank can charge at up to 100W via the built-in cable or USB-C port, and takes about 1.5 hours to power back up.
|
Rated output power |
2400 mAh / 48 Wh at 20 V, 3.25 A |
|
Faculty support |
No |
|
Cable included |
Built-in, 5A |
|
IN1 (USB-C port) |
5V⎓3A; 9V⎓3A; 15V⎓3A; 20 V⎓5 A |
|
IN2 (USB-C cable) |
5V⎓3A; 9V⎓3A; 15V⎓3A; 20 V⎓5 A |
|
OUTPUT1 (USB-C port) |
5V⎓3A; 9V⎓3A; 15V⎓3A; 20 V⎓3.25 A |
|
OUTPUT2 (USB-C cable) |
5V⎓3A; 9V⎓3A; 15V⎓3A; 20 V⎓3.25 A |
|
OUT3 (USB-A port) |
5V⎓3A; 9V⎓2A; 12 V⎓1.5 A |
Is it worth buying a Lenovo Go power supply?
Buy if…
Don't buy it if…
Also consider
The Lenovo Go laptop power bank is a great option for everyday laptop and phone charging, but below are a few other options if you're looking for something different. For even more advice, check out our guide to best power banks. Or, if you are planning a holiday soon, get full information about airline rules when traveling with power banks.
How I test power banks
I get to know each power supply I test and conduct extensive evaluations in both lab and real-world environments. Using tools like the ChargerLab POWER-Z KM003C, I measure charge voltage, check protocol support, and record capacity tests.
Each power bank is also tested with everyday devices, including phones, tablets and laptops, and connected to a programmable load tester for multiple charge cycles. I carry a set with me every day in my pockets and bags to evaluate their durability and ability to withstand everyday use.
All dimensions and weights are personally verified to ensure accuracy beyond manufacturer specifications. It's worth noting that many power bank reviews don't do this kind of testing, so you should take them with a grain of salt.
Want to know more? Find out how we test.
