Great price/performance ratio: Alza is selling out a 40,000mAh power bank with 100W charging for a steal!

  • You can now get the AlzaPower Metal 40000mAh power bank with 100 W output using code ALZADNY35 for 1 294 Kč
  • It offers a high capacity of 148 Wh, PD 3.0 and QC 3.0 fast charging with support for up to 100W output
  • Reviews indicate it's a reliable power bank, but beware – due to its high capacity, it cannot be taken on an airplane

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Jakub Kárník
Jakub Kárník
8. 7. 2025 02:30
alza powerbanka sleva

While mobile phones and tablets have seen significant improvements in battery life, laptop users are still often limited to a few hours of operation. If you are among those who need to work on the go or in the field without access to the power grid, a quality power bank with high output can be the solution. AlzaPower Metal 40000mAh Fast Charge + PD3.0 (100W) is now available at Alza for 1 294 Kč with code ALZADNY35, which represents a 35% discount compared to the regular price of 1 990 Kč.

Capacity and performance that will please demanding users

The AlzaPower Metal impresses at first glance with its elegant metal design, which is not only aesthetic but also provides better heat dissipation and increased durability. It offers an impressive capacity of 40,000 mAh (148 Wh), which should be enough, for example, for 2 full charges of a standard laptop or more than 7 charges of an average smartphone. The only disadvantage of such high capacity is that the power bank cannot be taken on board an airplane without special permission (the limit for air transport is 100 Wh).

What distinguishes this power bank from many other models on the market is the support for high charging output of up to 100 W. This means it can charge even powerful laptops at full speed. At the same time, it supports all important fast charging standards – Power Delivery 3.0, Qualcomm Quick Charge 3.0, Samsung Adaptive Fast Charge, and other protocols for fast charging of various phone brands.

Connectivity and practical features

The AlzaPower Metal offers three charging ports – one USB-C with support for both input and output power up to 100 W, and two USB-A ports with a maximum output of 18 W. The power bank itself can be charged either via USB-C or Micro USB. Depending on the charger used, a full charge can take from 2 to 12 hours – with a 65W charger, expect around 6-7 hours.

Thanks to Smart IC technology, the power bank automatically detects the connected device and optimizes power distribution. Safety is ensured by six-fold protection against overvoltage, overload, short circuit, overheating, overcharging, and deep discharge. There is also an LED battery status indicator with four diodes, which provides a basic overview of the remaining capacity.

What do users say about it? Mostly praise, but there are also criticisms

In almost three years on the market, the AlzaPower Metal power bank has collected dozens of user reviews, offering a very good insight into real-world experiences. Most customers particularly appreciate the high capacity and 100 W output, which can indeed handle even more demanding laptops. Roman from Liberec, for example, states in his review that he bought it for its “huge capacity” and jokingly adds that “in an emergency, it can be used as an improvised blunt weapon” – a reference to its weight of 774 grams.

Price: 1 294 Kč

Other users confirm that the power bank really charges laptops: “The laptop lasted almost all day on full performance,” writes Andrzej from Prague. Jan from Teplice, on the other hand, appreciates that it “can charge my laptop via USB-C (it draws 65 W)” and also that it “charges quickly from a car charger (also 65 W)”.

Among the main criticisms, the weight and dimensions of the power bank are most frequently mentioned. Martin from Vernířovice describes it as “a brick like hell”, which is the price for high capacity. Several reviewers also mention problems with charging the power bank itself – some are unable to charge it or experience functionality issues after a certain period of use.

Petr from Prague points out that the capacity “corresponds more to 100 Wh max. 110 Wh” instead of the stated 148 Wh, but adds that “for a price around 1 500 Kč, it’s a good buy”. Some users would also appreciate a second USB-C port instead of Micro USB, as David from Prague notes: “Why Micro USB and not 2× USB-C?”

Overview of main parameters

ParameterValue
Capacity40 000 mAh (148 Wh)
Max. output power100 W (20 V / 5 A)
Max. input power100 W (20 V / 5 A)
Ports1× USB-C (input/output), 2× USB-A, 1× Micro USB (input)
Supported protocolsPD 3.0, QC 3.0, BC1.2, AFC, FCP, SFCP, MTK PE, Apple 2.4A
Safety features6-fold protection (overvoltage, overload, short circuit, overheating, overcharging, deep discharge)
Dimensions93 × 188 × 25 mm
Weight774 g
Regular price1 990 Kč
Sale price1 294 Kč (with code ALZADNY35)

Who is this power bank ideal for?

The AlzaPower Metal 40000mAh is an excellent choice especially for:

  • Laptop users who need to work away from the power grid – thanks to its 100 W output, it can charge even more powerful models
  • Teams on the go – thanks to its three ports, it allows simultaneous charging of multiple devices
  • Photographers and videographers in the field – as one reviewer confirms, it works well for powering a recorder during filming
  • Travelers (excluding air travel) – high capacity ensures power for several days

Conversely, you should consider a different model if:

  • You frequently travel by plane – you will need special permission for air transport
  • You are looking for something light and compact – at 774 g, it is not the lightest model on the market
  • You prefer fast charging of the power bank itself – a full charge can take several hours

Final summary

The AlzaPower Metal 40000mAh Fast Charge + PD3.0 (100W) is a solid power bank with impressive capacity and sufficient power for charging virtually any portable device. Its metal design feels premium and also ensures good durability. With the current 35% discount, it’s a very good buy at the price of 1 294 Kč.

⏰ Deal ends: While stocks last!

What are your experiences with high-capacity power banks?

About the author

Jakub Kárník

Jakub is known for his endless curiosity and passion for the latest technologies. His love for mobile phones started with an iPhone 3G, but nowadays… More about the author

Jakub Kárník
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