The Iniu B41 is one of the thinnest power banks I’ve used, but it won’t be powerful enough for everyone

Light in weight, light on power

Iniu B41 power bank leaning on plinth on desk with pink background
(Image: © Future)

TechRadar Verdict

The Iniu B41 is a simple power bank that sacrifices features for ultimate portability, with one of the slimmest designs of any 10,000mAh power bank. However, it only provides 15W of power, so those with larger devices will want to look elsewhere. The B61 offers 22.5W and doesn’t cost much more, so might make more sense. Still, the B41 is inexpensive with sufficient performance and build quality to get the job done for light travellers with light requirements.

Pros

  • +

    Very thin and light

  • +

    Integrated flashlight

  • +

    Well priced

Cons

  • -

    Lacks power

  • -

    No screen

  • -

    B61 might be better value

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Iniu B41 power bank: review

The Iniu B41 is a basic power bank with limited features, but a form factor that’s sure to please those who like to travel as light as possible. The power and battery indicator LED is in the shape of a paw – a design choice that’s not explained, but one I’m happy to go along with; if nothing else, it helps to liven up the monotony of the black colorway. Fortunately, the B41 caters to those who like a little more vibrancy, as it also comes in blue, orange, and red variants.

The matt rubberized finish does help to elevate its appearance, and the power button is integrated and seamless with the material, which adds to its sleekness. It feels premium too, although it’s maybe not quite on a par with some rivals. The overall build quality of the B41, though, is quite good. The joins are tight and secure, and there’s barely any flex to any of the panels.

It’s also very thin and light for a 10,000mAh battery, even when compared to the best power banks. This makes it one of the most pocket-friendly power banks I’ve ever used, so those who are constantly on the go will certainly welcome this aspect. Iniu even claims it’s the market’s thinnest 10K power bank.

As for port selection, the B41 features one USB-C port and two USB-A ports, a generous selection considering just how thin it is. Another nice touch is the inbuilt flashlight, which is quite bright considering its small size. It can be easily toggled with two quick presses of the power button.

It took about 90 minutes to charge my Google Pixel 7a from half to full capacity, which is a decent performance. Doing so depleted the battery by only one bar, which means you should be able to get a couple of full charges out of it. However, charging the B41 itself took about three hours from two to four bars, which isn’t a particularly impressive performance.

What’s more, with only 15W of power, this isn’t a bank for charging your larger devices, such as laptops. At a stretch it can charge some tablets, such as the iPad Mini, but Iniu states it will only manage 1.6 charges for this device. At least multiport charging is possible, though.

For about $20, the B41 is also good value, undercutting many of its rivals. However, Iniu also has its B61 power bank, which isn’t much more, yet offers 22.5W of power instead of 15W, as well as a screen displaying the battery readout. But while it’s thin, it’s not as thin as the B41. The B61 might be the better pick therefore, unless thinness is a top priority for you, in which case the B41 is preferable.

Iniu B41 power bank on plinth on desk with pink background

(Image credit: Future)

Iniu B41 power bank review: price & specs

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Price

$21.99 / £16.99 / AU$29.99

Capacity

10,000mAh

Total wattage

15W

Number of ports

3

USB-C

1

USB-A

2

Wireless charging

No

Weight

7oz / 198g

Power-to-weight

50.5mAh/g

Iniu B41 power bank on plinth on desk with pink background

(Image credit: Future)

Should I buy the Iniu B41 power bank?

Buy it if…

You want to travel light
As one of the thinnest 10K power banks out there, the B41 is certainly easy to carry in your bag or pocket.

You want to save money
The B41 is something of a bargain, yet still offers enough performance for keeping your smaller devices topped up.

Don't buy it if…

You have big devices to charge
With only 15W of power, the B41 won’t cut the mustard for laptop or larger tablet charging.

You want more features
The integrated flashlight is a nice touch, but there’s no digital display, and there are 10K banks with more ports and even wireless charging.

Iniu B41 power bank review: Also consider

Iniu B61
Another well-priced offering from Iniu, the B61 is similarly light and offers the same port selection, although it has more power (22.5W). It’s slightly thicker, but not by much, yet it manages to fit in a digital display which provides a battery life readout. For many, this could be the better option. Read our Iniu B61 review.

Lewis Maddison
Reviews Writer

Lewis Maddison is a Reviews Writer for TechRadar. He previously worked as a Staff Writer for our business section, TechRadar Pro, where he had experience with productivity-enhancing hardware, ranging from keyboards to standing desks. His area of expertise lies in computer peripherals and audio hardware, having spent over a decade exploring the murky depths of both PC building and music production. He also revels in picking up on the finest details and niggles that ultimately make a big difference to the user experience.

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