CUKTECH 10 & CUKTECH 15 Review: Fast USB-C Wall Chargers for Powerful, Multi-Device Charging

Last year, I had the opportunity to review the CUKTECH 20 Power Bank and found it to be excellent. I have now been presented with not one, but two fast chargers from the brand’s “Numbers” product line: the CUKTECH 10, a 100-watt, 3-port model, and the CUKTECH 15, a 140-watt, 4-port model. Will they be as impressive as the power bank?

About CUKTECH

CUKTECH, pronounced [chooktek], is a manufacturer of chargers and power banks based in Nanjing, China. The name is a recognition of the Cuk circuit, a special type of DC-DC circuit topology proposed by Slobodan Cuk in 1976. CUKTECH’s line of fast chargers includes five models and currently ranges in capacity from 30W to 140W.

CUKTECH 10 100W GaN Charger

As the name suggests, the CUKTECH 10 100W GaN Charger is a 100-watt charger with three USB ports. The 10 features include dual USB-C ports and one USB-A port. At 4.33” high by 3.15” deep and 1.54” wide, this is a compact design. In fact, it is 27% smaller than a 96W Apple charger. It is quite beefy, weighing 11.7 ounces.

What’s in the Box

• CUKTECH 10 100W GaN Charger
• 92’ PD3.1-240W C to C Charging Cable
• User Manual

CUKTECH 15 140W GaN Charger

The CUKTECH 15 140W GaN Charger is a step up from the 10 in every aspect. The 15 is a 140-watt charger with 4 ports, featuring three USB-C and one USB-A ports. It is only slightly larger than the 10, at 3.11” high by 2.56” deep and 1.26” wide. It is also only slightly heavier than the 10, weighing 11.8 ounces.

What’s in the Box

• CUKTECH 15 140W GaN Charger
• 92’ PD3.1-240W C to C Charging Cable
• User Manual

Design

The CUKTECH line features a consistent design aesthetic that runs through the chargers and power banks. The new products I reviewed featured a color scheme similar to that of the CUKTECH 20 Power Bank, with faces and wraparound grips in matte black and a contrasting light-colored body. On the CUKTECH 10, the light color is a mid-gray, while on the CUKTECH 15, it is metallic silver, similar to the power bank.

Between these two hues is a pinstripe of a light teal color, resulting in a very handsome and subtle package. The CUKTECH 10 is also available in an alternate light color scheme, where the face and grips are in a mid-light gray, and the body is a grayish-white color.

Both chargers are compact, feel solid in hand, and feel heavier than their OEM counterparts. Both chargers feature a flip-out plug design, making them even more travel-ready. Neither charger includes any type of light to indicate that they have power, but since many users may leave the charges plugged in most of the time, this omission seems sensible.

Charging

These are serious chargers; they are powerful and they are fast. The CUKTECH 10 can simultaneously charge three devices, including laptops, tablets, phones, handheld gaming devices, smartwatches, and earbuds.

The CUKTECH 15 can simultaneously charge four devices, and according to CUKTECH, can charge a MacBook Pro 16 to about 55% in 30 minutes. I know that compared to other chargers that I own, both the 10 and 15 are significantly faster at charging every device that I have plugged into them, whether they be iPhones, iPads, AirPods, or the power bank.

When used to charge using a single port, the 15’s ports can accommodate USB Type-A (18w max), USB Type-C 1 (140w max), C2 (140w Max) and C 3 (33w Max). As more ports are employed, the maximum output for each port decreases.

Moreover, these chargers remain much cooler to the touch than older models. This is due to their use of GaN technology. GaN or Gallium Nitride replaces the silicon found in most other chargers. Gallium Nitride conducts far higher voltages over time than silicon. Gan chargers are more efficient and, as a result, lose less energy to heat loss. This efficiency also allows GaN chargers to be smaller than their silicon predecessors.

Protection

The GaN technology used in the design of the CUKTECH chargers incorporates built-in protections, including those for overtemperature, short circuits, output overcurrent, low ripple, input overcurrent, input overvoltage, low electromagnetic interference, and electrostatic resistance.

The CUKTECH chargers come with an 18-month warranty and 24/7 customer support, as well as after-sales support via email.

Compatibility

From the CUKTECH Amazon store:

Supporting a wide array of charging protocols, including PD, QC, and PPS, this charger is compatible with a diverse range of devices. From MacBook Pros and Airs to Pixelbooks, ThinkPads, iPhones, Galaxies, iPads, Pixels, and even gaming devices like the Steam Deck and Switch, this charger intelligently adjusts its power delivery to match the needs of each connected device, ensuring optimal charging efficiency.

The CUKTECH 10 and CUKTECH 15 fast Chargers are an improvement on older chargers in every way. They are more powerful and significantly faster. They are smaller and more efficient. They are handsomely designed and well built. There are cheaper chargers on the market that seem to have similar specifications, but read closely and you will find that they are not comparable, as they lack some of the features and benefits of the new technology.

Both chargers are recommended. If you need 4 ports and the power of 140W, the CUKTECH 15 is for you. If you don’t plan on charging your laptop or MacBook, then the CUKTECH 10 is a smaller, lighter, and less expensive option.

You can learn more about the chargers on the CUKTECH website.

The CUKTECH 10 100W 3-Port Multi-Device Fast Charging USB-C Wall Charger retails for $45.99; it is available on Amazon.

The CUKTECH 15 140W 4-Port Multi-Device Fast Charging USB-C Wall Charger retails for $69.99; it is available on Amazon.

Source: Manufacturer-supplied review sample

What I Like: Efficiency: Power; Fast Charging; Design; Build Quality

What Needs Improvement: Nothing