Juovi J2621 20000mAh 45W Power Bank review: a multiport beast that puts power before portability

Plentiful capacity, plenty of ports

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JUOVI J2621 20000mAh 45W on desk against block
(Image: © Future)

TechRadar Verdict

The Juovi J2621 is a capacious power bank with four ports and 45W of power for versatile charging performance. However, the charging speeds won’t blow you away, and despite it being relatively light, it’s still quite thick, so it isn’t the most portable. Considering its price, though, the J2621 could be a good pick for those on a budget that still need a large capacity and plenty of ports.

Pros

  • +

    Large capacity

  • +

    Four ports

  • +

    Well priced

Cons

  • -

    Charging performance so-so

  • -

    Not the best built

  • -

    Bulky

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Juovi J2621 20000mAh 45W Power Bank review

The Juovi J2621 is a 45W power bank with a large 20,000mAh capacity and four ports for versatile, long-lasting charging performance. It’s a hefty brick for sure, but thankfully it’s not as heavy as it looks. This means it would be easy enough to carry around in a back, but not slim enough for pocketing.

Overall, its design is fairly anonymous, although the two-tone colorway adds some interest. There’s no clutter to ruin its minimalist credentials, as there’s only one button for the power, but ultimately, the J2621 won’t win any awards for style.

The build quality isn’t on a par with some of the best power banks, as there’s some flex in the chassis when pressed, and the front and back panels have prominent joins that feel sharp in the hand.

However, one very smart-looking feature is the display. It’s imperceptible when inactive, since there’s no glass screen; instead, it shines through the chassis when on. This also means there’s no delicate glass to scratch or crack, which is reassuring.

The USB-C ports provide up to 45W of power. Charging a Google Pixel 7a from half to full took just over an hour, which amounts to an average performance. Thanks to its large 20,000mAh capacity, though, the J2621’s battery only depleted by 16%, which means you should be able to get about six charges out of it.

On the other hand, the USB-A ports only reach a maximum of 30W each. Charging a Pixel 7a via this method was inevitably slower, taking closer to two hours, with the J2621 depleting by 17%.

There’s also a trickle charging mode, designed for low-current devices such as earbuds and smartwatches. It can be activated easily by pressing the power button twice, with an indicator appearing on the display.

The J2621 itself took just over an hour to charge itself from 70% to full, which isn’t bad considering its large capacity.

Ultimately, if you need a large capacity and port selection, then the J2621 is a worthy choice. It undercuts some other power banks, including those from Anker, and although it’s not as well engineered as its rivals, or as portable, it still makes for a versatile power bank.

Side view of JUOVI J2621 20000mAh 45W leaning against block

(Image credit: Future)

Juovi J2621 20000mAh 45W Power Bank review: price & specs

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Price$36.98 / £34.99 (about $57)
Capacity20,000mAh
Total wattage45W (USB-C), 30W (USB-A)
Number of ports4
USB-A2
USB-C2
Wireless chargingNo
Weight13.51oz / 383g
Power-to-weight52mAh/g

Close-up of ports on JUOVI J2621 20000mAh 45W

(Image credit: Future)

Should I buy the Juovi J2621 20000mAh 45W Power Bank?

Buy it if…

You have multiple devices
With two USB-C ports and two USB-A ports, the J2621 is great if you have lots of devices to charge at once.

You need the power and space
With a 45W maximum output, the J2621 is capable of charging larger devices, such as handheld consoles and tablets. It also has enough juice to offer multiple charges.

Don't buy it if…

You want something ultra-portable
Although it’s light, the J2621 is thick and long, so it’s not ideal if you want to slip it into your pocket.

You want the best build
Although the screenless display is a nice touch, the rest of the chassis doesn’t feel like the toughest.

Juovi J2621 20000mAh 45W Power Bank: also consider

Iniu B61 10000mAh power bank
If you want charging power and versatility in a portable package, the Iniu B61 is a great choice. It offers three charging ports and has a light, slender form that makes it easy to carry in your pocket. It also features a large display, although it’s a little overkill considering the dearth of information it presents. It’s also a shame there’s only one USB-C port. But while the J2621 is slightly cheaper, the B61 is still great value for money.

Lewis Maddison
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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