Black Friday 2026: best power bank and USB-C charger to buy

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Which power bank and charger to buy on Black Friday? A practical choice

For most people, the best everyday choice is a 20 000 mAh power bank with a 45 W USB-C port. If you plan to regularly power a laptop away from an outlet, choose a larger 25 000 mAh model. For charging at home and on the go, pick up a modern 65 W or 140 W GaN charger that can easily replace several old power adapters.

It is worth keeping the dates in mind, as Black Friday 2026 falls on Friday, November 27, and Cyber Monday on Monday, November 30. However, many stores launch their deals much earlier. Instead of impulse buying, it is better to match the hardware specs to what you actually carry in your backpack.

Match the gear to your devices

For everyday phone use, a 20 000 mAh power bank with a 45 W USB-C connector works great. This amount of power lets you quickly charge your phone, and a built-in cable solves the problem of a forgotten cable.

For users of newer iPhones, a slim magnetic power bank is a very convenient option. A Qi2 standard model charges wirelessly at 15 W, attaches to the back of the phone with magnets, and eliminates tangled cables.

If you need power for your laptop on the road, go for a 25 000 mAh power bank with a high-power USB-C port. A model that delivers up to 100 W from a single USB-C port will charge most USB-C-powered laptops, and 90 Wh is still within carry-on luggage limits.

For a desk with a laptop and a phone, a multi-port wall charger is the best choice. A 65 W version with three ports will handle a smaller laptop and a smartphone, while a 140 W model will power two laptops at the same time, splitting 70 W per port.

We have rounded up several proven charger and power bank models that precisely match these different use cases.

Our Black Friday picks: power banks and chargers

Technical specifications: what to look for before buying

The capacity in mAh stated by manufacturers refers to the built-in cells with a voltage of around 3.6-3.7 V. A phone charges through a converter at a higher voltage, which is why some energy is lost as heat, and noticeably less power reaches the smartphone's battery than the mAh figure alone suggests. Real energy is measured in watt-hours (Wh) by multiplying the cell voltage by the capacity in ampere-hours - for example, 20,000 mAh at 3.6 V equals exactly 72 Wh.

Watt-hours matter on an airplane. According to FAA regulations, power banks can only be carried in carry-on baggage, and devices with a capacity of up to 100 Wh can be brought on board without any approvals. Models in the 101-160 Wh range require airline approval, and you are allowed a maximum of two such units, though individual carriers may enforce even stricter limits.

Fun fact: The 100 Wh limit corresponds to a capacity of about 27,000 mAh at the standard 3.6 V cell voltage, which is why the most powerful power banks allowed into the passenger cabin without questions typically range from 25,000 to 27,000 mAh.

Pay attention to fast charging protocols. Google Pixel and Samsung smartphones only reach their maximum charging power when the charger or power bank supports the USB Power Delivery standard with the PPS profile. To power a typical office laptop via USB-C, you need a power supply of at least 45-65 W.

If you plan to charge a laptop at over 100 W using the USB PD 3.1 EPR standard, a standard cable will not be enough. Delivering higher power requires a certified 240 W cable with a built-in e-marker chip.

Price comparisons across devices

When planning your budget, it is worth knowing the actual price ratios from autumn 2026. An advanced 25,000 mAh power bank with a total output of 165 W costs roughly three times as much as a basic 20,000 mAh 45 W model. Meanwhile, a slim Qi2 10,000 mAh magnetic model costs about twice as much as a basic 20,000 mAh power bank.

Similar differences can be seen in wall chargers. A four-port 140 W charger costs approximately three times as much as a proven 65 W model with three outputs. With cheaper accessories, the monetary differences can be small, so a high percentage discount alone is meaningless if you end up buying underpowered equipment.

How to spot a fake Black Friday deal

Before buying, check the reference price from which the store calculates the discount. Under the CJEU ruling in Case C-330/23 involving Aldi Süd, any price reduction announced as a percentage must be calculated directly from the lowest price applied during a period of at least 30 days prior to the promotion. A retailer cannot hike the price shortly before the sale to artificially manufacture the illusion of a massive bargain.

Fun fact: The CJEU ruling governing promotional pricing rules across the entire European Union originated from a dispute over strikethrough prices on bananas and pineapples in an advertising flyer.

Data from the British consumer organization Which? from November 2025 demonstrates how cautious shoppers need to be during November sales. Researchers tracked the prices of 175 products across eight major retailers and found that 83% of them were just as cheap or cheaper at other times of the year outside the sale period. On Amazon, 88% of items were available at an identical or lower price in other months, and none of the 175 tracked products hit its lowest price of the year on Black Friday itself.

Another common marketing tactic is displaying an unrealistic original price. Which? highlighted the case of an electric toothbrush advertised with a list price of 50 pounds, even though that rate was only active for 13 days over an entire six-month span. To avoid overpaying, stick to proven rules:

• Check product price histories using independent tools such as camelcamelcamel for Amazon or PriceRunner.
• Add shortlisted models to your wishlist in advance to monitor price fluctuations without pressure.
• Ensure that a low price does not apply to an older generation of the device or a lower-capacity variant.
• Check who the actual seller and dispatcher of the parcel are.
• Buy gear at a price you would consider fair even without a flashy discount banner.

Frequently asked questions about Black Friday shopping

Is it worth buying a power bank on Black Friday?

Yes, but only if you choose a model that meets your needs and verify its price history. Keep in mind that the gear you need is often cheaper in the weeks leading up to Black Friday itself, so you do not have to wait until the last minute. The most important step is comparing the offer against the lowest price from the past 30 days rather than the crossed-out reference price.

What power bank is sufficient for a laptop?

To charge a laptop, you need a power bank supporting the USB Power Delivery protocol with an output matching the computer's requirements, which typically means 45 W or 65 W. If you want fast charging for a larger machine, choose a model that offers 100 W from a single USB-C port.

Can a 25,000 mAh power bank be taken on an airplane?

Yes, provided its energy capacity does not exceed 100 Wh, which for 25,000 mAh models usually amounts to around 90 Wh. According to FAA guidelines, such a battery must only be transported in carry-on luggage, never in checked baggage. Remember, however, that individual airlines have the right to enforce more restrictive limits.

Which charger for USB-C will charge a laptop and a phone at the same time?

You need a multi-port charger with a total power output of at least 65 W, and ideally 140 W. A 140 W model can power two demanding laptops simultaneously by splitting the power into 70 W per primary USB-C port. When charging multiple devices at once, the power splits across the ports, so check the specifications to see what each port provides.

How can you check if a power bank discount is genuine?

Use online price comparison tools and price-tracking platforms like camelcamelcamel. Pay attention to the lowest price from the previous 30 days, which retailers in the EU are required to display alongside any announced discount. Also, make sure the seller is not attempting to clear an older hardware revision disguised as a current model.

Guides for specific models

• Best power bank for Galaxy A57 - PPS for the full 45 W
• Best power bank for iPhone 18 Pro - 25 W Qi2.2 or 45 W wired
• Best power bank for iPhone 17 Pro - magnetic 25 W Qi2.2
• Best power bank for Galaxy A17 5G - 25 W with PPS
• Best power bank for iPhone 17 - 25 W MagSafe without a cable
• Best power bank for Redmi Note 17 Pro - 8340 mAh and 67 W HyperCharge
• Best power bank for Galaxy A37 - the full 45 W only with PPS
• Best power bank for Galaxy S26 Ultra - 45 W PPS and Qi2.2
• Best power bank for Google Pixel 10a - 30 W only with PPS
• Best power bank for iPhone 18 Pro Max - 53 W from a single port
• The perfect power bank for every occasion - See how to find it
• What Laptop Charger Should You Use: can you replace the original power adapter with a smaller 65W GaN charger?
• GaN Technology: Revolutionizing Fast Charging for Mobile Devices
• The perfect travel charger. Which one should you choose?

Sources

• Anker: Power Bank (25K, 165W, Built-In and Retractable Cables) - manufacturer page (ca.anker.com)
• FAA: PackSafe - Lithium Batteries - manufacturer page (faa.gov)
• Plugable: What Is 240W USB Extended Power Range (EPR)? - industry article (plugable.com)
• Google: Charge your Pixel phone - industry article (support.google.com)
• Court of Justice of the EU: Case C-330/23 Aldi Süd, press release 152/24 - industry article (curia.europa.eu)
• Which?: Most Black Friday deals the same price or cheaper at other times of the year - industry article (which.co.uk)