A visual table will help you compare the characteristics and prices of 20,000 mAh power banks with fast charging from the review. More Powerbank batteries for independent selection are offered in the general catalog.

High power per port (50 W), the most popular fast charging protocols, aluminum body.
No significant deficiencies were identified.

The Xiaomi power bank, which went on sale in early 2022, is made of aluminum and has a laconic design. It looks nice, is not too heavy, and at the same time is more durable than its plastic counterparts.

Xiaomi Mi HyperSonic Power Bank 20000 with a capacity of 20 thousand mAh has dimensions of 154x74x28 mm, provides a single control button and a simple charge indicator with four LEDs.

The power bank battery supports the fast charging protocols that are in demand today, namely Quick Charge 3.0 and Power Delivery 3.0 (as well as their earlier versions). It also has three ports: a pair of USB A output ports (up to 22.5 W) and USB C ports. Using the latter, you can charge both the power bank itself (up to 45 W) and various connected gadgets (up to 50 W).

Up to 3 devices can be powered at the same time. And the capacity of the external battery itself takes about 4 hours to recharge (USB C cable included).

Ultra-fast charging (50 W) is possible with a limited set of gadgets - with Xiaomi, Redmi and Poco smartphones. For example, Xiaomi Mi 11 can be fully charged in about an hour. But thanks to support for Power Delivery technology, 45 W of power is available for any compatible devices (including laptops). For example, Lenovo L480 is claimed to be charged to 100% in about 2.5 hours.

In addition, there is the possibility of low-current charging. Therefore, the power bank is suitable for "recharging" wireless headphones and speakers, fitness bracelets, etc.

Xiaomi Mi HyperSonic Power Bank 20000 is a universal battery that can quickly charge smartphones or even become an alternative to the charger of some laptops on a short trip.

Three USB type C ports (45W each), recycled material housing.
There are no significant disadvantages.

The Samsung EB-P4520 portable battery is equipped with three USB type C ports operating on the Power Delivery 3.0 fast charging protocol.

Each of the connectors delivers a charging power of up to 45 W, which allows you to significantly speed up the charging procedure of compatible gadgets (including even some models of energy-saving laptops). Similar power is supplied to the power bank input to replenish energy reserves in the cells of its own lithium-polymer battery.

Inside the power bank case, made from recycled materials, there is a 20,000 mAh Li-Pol battery. In fact, it provides up to 12,600 capacity to the gadgets being charged - this difference is due to differences in the operating voltage of the battery and the USB bus, as well as losses during energy conversion.

The Powerbank battery can charge three gadgets at once. However, the standard model package includes only one 30 cm long USB type C – USB type C cable. Additional cables will need to be purchased separately, and Samsung recommends using original accessories.

High power for 1 port (65 W) and two (63 W), many supported fast charging protocols, information display, aluminum case.
No significant deficiencies were identified.

Externally, the 2022 debutant of BASEUS is almost identical to the Adaman Metal Digital Display 20000 22.5W. It is also made in an aluminum case, has a capacity of 20 thousand mAh, and is equipped with a teardrop-shaped information screen.

But BASEUS Adaman Metal Digital Display 20000 65W is an older and more advanced version. It is distinguished by an approximately 1 cm longer length and, what is more important, a high power of up to 65 W. This allows the model to be used to charge laptops. Tests have confirmed compatibility with laptops of the MateBook, Honor and Apple lines, and, for example, the MacBook Pro 13 2020 battery can fully charge once, which will take about 2 hours.

By the way, when connecting even three devices at the same time, the power drops to 30 W, that is, it will still be higher than that of one port of the younger "relative". And if two gadgets are charged at the same time, the peak value can reach 63 W.

The power bank has 4 ports - two USB A outputs (up to 30 W), one microUSB input (18 W) and a "two-way" USB C (65 W) with a cable included. It also supports 6 fast charging protocols, including Quick Charge 3.0 and Power Delivery 3.0, as well as Huawei and Samsung proprietary standards. As a result, in half an hour you can charge up to 50% of the iPhone 12 or up to 60% of the Huawei P30.

You won't have to wait long to recharge the Powerbank battery itself. Via USB C, the battery will "charge" from 0 to 100% in just 2 hours, but you will need a compatible network device and cable (a 100 W cable is recommended).

If you need a power bank for a laptop or for simultaneously quickly “charging” energy for several mobile gadgets, then you should definitely take a closer look at the BASEUS Adaman Metal Digital Display 20000 65W.

Fast charging up to 65W, low current charging mode, info display, lightweight.
Large thickness of the body.

The compact "brick" Sandberg Travel Powerbank 20000 PD56W is designed for use while traveling and on the go. The model provides energy independence for gadgets and supports common fast charging specifications.

The portable battery is assembled in a lightweight plastic case weighing 339 g. They tried to make it as compact as possible, but at the same time had to sacrifice the thickness of the case - 32 mm. The power bank connection ports are represented by one USB A and one USB type C on one of the narrow ends. There is also a power button and a low-current charging mode selection button (for headphones or smart watches). And a small info screen for displaying the remaining battery percentage completes the picture.

The power bank delivers a maximum charging power of up to 65 W via the Power Delivery protocol. The USB type C connector serves for this, working both as an output and as an input (for charging its own battery). The USB A port provides fast charging using Quick Charge 3.0 technology with a power of up to 22.5 W. Out of the box, the model comes with one USB type C – USB type C cable.

The Sandberg Travel Powerbank 20000 PD56W can charge almost any iPhone three times, an Android tablet one and a half to two times, and wireless headphones, smart watches, and other mobile accessories a great many times. Note that out of the declared 20,000 mAh capacity, the power bank can transfer about 12,600 mAh to the devices being charged — its efficiency is 63%, which is a standard figure in its class.

Fast charging up to 65W, built-in USB type C cable, support for common fast charging specifications, info display.
There are no significant disadvantages.

A distinctive feature of the BASEUS Elf Digital Display Power Bank 20000 model is the presence of a built-in 19-centimeter cable with a USB type C end. With its help, you can charge both third-party devices and the power bank itself.

The built-in cable eliminates the need to carry a separate USB cord - the Powerbank battery is always ready for work. In addition, it transmits charging power of up to 65 W in both directions: both to connected gadgets and to recharge its own battery with a nominal capacity of 20,000 mAh. This significantly speeds up the charging procedure.

The power bank's connection ports are represented by another USB type C and a couple of full-size USB A. The manufacturer has provided support for common fast charging specifications in the model: Power Delivery 3.0, Quick Charge 2.0/3.0, Samsung Adaptive Fast Charge, Huawei Fast Charge Protocol and SuperCharge Protocol. You can even charge laptops from the Powerbank battery - a conventional Apple MacBook Pro 13 charges from zero to 40% in about half an hour.

BASEUS Elf Digital Display Power Bank 20000 is assembled in a matte plastic case with dimensions of 152x68x28 mm and weight of 420 g. For visual control of the remaining battery charge level in percent, the power bank is equipped with a digital info screen. Finally, the model has a 9-level intelligent protection against all sorts of electrical adversity, thanks to which it is possible to prevent many serious problems when using it.