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Best Powerbank Klein - Holiday Sale

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Last Updated - 16.12.2025

Best Choice

01

INIU

INIU Power Bank, 20000 mAh Mini Power Bank, 22.5 W Fast Charging Small External Mobile Phone Batteries, USB C Power Bank, External Battery Pack for iPhone 17 16 15 Pro Samsung S25 S24 Airpods iPad Travel & Camping

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

What you get: INIU 20000mAh portable charger1, cable1, user manual1, INIU industry-leading 3-year iNiu Care and lifetime technical support.
POCKET SIZE FOR TRAVEL This power bank easily fits in your pocket, chest pocket and other small pockets and is also airworthy, great for travel.
Markt's smallest, Mega Power: The smallest 20,000 mAh power bank, only 1.94 inches diagonal, but strong enough to charge your iPhone 17 four times and Galaxy S24 three times.
CHARGE ALL YOUR DEVICES Equipped with 2 USB-C input/outputs and 1 USB-A output, it can power outdoor gear from smartphones to GPS, camping lights, etc. Supports low current charging mode.
22.5W fast charging: get 75% power in just 25 minutes. No need to hold the power bank constantly, live on at your fast pace!

29,99 €
Value for Money

02

INIU

INIU 45 W Power Bank, Ultra Small 20000 mAh Power Bank with Integrated USB-C Cable, Quick Charging External Mobile Phone Batteries, USB-C In & Out, Small But Strong for iPhone 17 16 15 Pro, Samsung S22, Xiaomi, iPad etc

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Once charging, one week power: perfect for travellers and outdoor fans, the 20,000 mAh power bank charges your iPhone 17 up to 4 times. Charge once and have power all week!
New-Gen Ultra-Compact 20,000mAh: Thanks to the industry-leading TinyCell battery technology, this power bank is particularly compact. Enjoy high capacity without the extra weight - ideal for on the go.
From INIU - The Safe Fast Charge Pro: Over 38 million users worldwide trust INIU for the safest charging. Using only the highest quality materials, we confidently offer an industry-leading 3-year INIU warranty.
Built-in USB-C cable, easy to carry: Never forget your cable again thanks to the built-in USB-C cable - for easy charging on the go.
45W full speed charging for iPhone 17 & Samsung S25: with up to 45W output, this power bank delivers PD, QC and other fast charging protocols. Charge your iPhone 17 to 70% in just 25 minutes and your Samsung S25 Ultra to an impressive 80%.

28,48 €
03

INIU

INIU Powerbank, Klein Aber Stark 22.5W 10000mAh PD3.0 QC4.0 Tragbares Schnellladegerät, Externer Akku mit Handyhalterung für iPhone 13 12 Pro Samsung S21 S20 Huawei Xiaomi LG iPad Tablet Airpods usw

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

PRODUCT SPECIFICATIONS This power bank measures 4.1×2.6×0.9 inches and delivers an actual usable power of approx. 65% (Industry Standard Efficiency) For optimal fast charging, pay attention to compatibility with adapter and device. Note: This product does not support magnetic attachment.
Half the size of your iPhone: you won't find another power bank with this capacity that is so thin, light and small. As it is only half the size of your iPhone, you can easily put it in any trouser or purse.
From INIU - The safe professional for fast charging: Experience the safest charging with over 38 million users worldwide. At INIU we use only the highest quality materials. Therefore, we are confident to provide an industry-leading 3-year service. If you have any quality problems, we will send you a new replacement!
60% CHARGED IN 30 MINUTES - Supports all popular fast charging protocols to ensure all devices are fully charged in no time. All devices are fully charged in no time.
2025 Version USB C Input & Output: Unlike most chargers with just one USB C input, the INIU PD 10000 features a USB-C In & Out port to perfectly fit your new iPhones, iPads, and all upcoming USB-C devices.

18,36 €
04

hganus

Mini Power Bank 5000 mAh, Power Bank Small but Strong 5000 mAh Compact Slim External Battery with 2.4 A Output, Portable Mobile Phone Charger for iPhone Samsung Galaxy and More (Black)

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

What you get: 1 x 5000 mAh power bank, a micro USB charging cable, an instruction manual (English language not guaranteed). -
Super compact: It is remarkably small, has the shape of a small tube and can be easily stored in your bag. Only 10 cm high and 2.5 cm wide. With a weight of 99 g, it is the lightweight 5000 mAh power bank.
Safety guarantee: The small power bank is equipped with a high-quality lithium polymer battery and an arsenal of overload, over current, over voltage and short circuit protection to protect you and your devices. It is so safe that you can take it with you on the plane.
Charging all devices: Unlike most chargers on the market that cannot charge smaller devices such as your AirPods, smartwatch/bracelet, Bluetooth headphones/speakers, etc., the EUARY external mobile phone batteries are compatible with any device, regardless of size. Besides, you don't have to bother activating special charging modes. Just plug and play.
5000 mAh capacity: This external battery is small, lightweight but high capacity of 5000 mAh to charge the smartphone once or twice (depending on the capacity of your mobile phone).

12,49 €
05

Intenso

Intenso 7313530 Powerbank XS 10000, Portable Charger, 10000 mAh, Suitable for Smartphone/Tablet PC/MP3Player Player/Digital Camera, Black

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

You can charge a smartphone with both USB-A and USB-C cables and you can charge the power bank with a micro USB cable and a USB-C cable.
Various charging options: one USB-A and one USB-C port allow you to charge two devices simultaneously. Input: 5. 0 V, 2. 1 A. Output: 5. 0 V, 3. 1 A. Fast charging is possible via USB-C in/out.
Universal compatibility: portable charger compatible with virtually all USB-rechargeable devices like iPhone devices, Huawei devices, Samsung Galaxy devices, iPad Air/Mini, different smartphones, action cams, GoPro devices, Nintendo Switch and more.
Safe and reliable: blue LED power indicator, surge protection, discharge protection, overcharge protection, short circuit protection.
Contents: Intenso XS10000 power bank, USB-A to USB-C charging cable, instruction manual (English language not guaranteed).
Compact charging marvel: the small power bank weighs only 181 g and fits in any jacket or trouser pocket thanks to its minimalist design

15,32 €
06

LKOUY

Power Bank 20000 mAh, 22.5 W Mini PowerBank USB-C Input & Output, PD 3.0 QC 3.0 External Mobile Phone Batteries with LED Display, Compatible with iPhone 17 16 15 14 13

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Ultra-slim compact design: our power bank is not only ultra-flat and compact, but also feather-light, weighing only 162g. With dimensions of 10.65 x 6.86 x 1.6 cm, it fits comfortably in the palm of your hand and is perfect for travelling. You can easily store them in your bag without taking up much space or weight. You can charge your phone quickly at any time!
Stylish LED display: Stay informed with the intelligent LCD display of our power bank. Simply monitor the current battery level and input/output status, eliminate the guesswork and always know when it's time to recharge
Safe and Protected Our power bank is equipped with a high quality Li-polymer battery, which protects your phone from overcharging, over-current, over-voltage, short circuit and over-discharge. By supporting PD3.0/QC3.0/AFC/FCP protocols, it is specially tailored to various electronic devices and ensures maximum safety and product quality
Charge 3 devices at the same time: This power bank has 1 USB port and 2 Type-C ports, making it perfect for sharing with family and friends. Whether you want to charge your mobile phones, headphones or tablets, this power bank is powerful and versatile, so you always stay connected
22.5W super fast charging: Experience unparalleled speed with our power bank thanks to the 22.5W PD fast charging technology. The charging speed is three times as fast as conventional chargers. Charge your device from 0% to 50% in just 30 minutes and stay ready to use anytime and anywhere in no time

21,84 €
07

Anker

Anker Zolo Powerbank (2025 Upgrade), 20000 mAh, 30 W High-Speed Charger with Integrated USB-C Cable, Battery Pack for iPhone 17/16/15 Series, Galaxy and More

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Safety upgrade, tested quality: now with upgraded, CB certified battery cells for international safety standards. Charge worry-free and with complete confidence.
Robust and durable: the power bank has a 15 cm long, integrated USB-C cable. This is not only practical, but also robust and can withstand over 10,000 bends without breaking.
Power bank with 20,000 mAh: fully charge your iPhone 16 up to 4 times or your Samsung S24 up to 3.79 times - perfect for travel and long days.
Advanced safety: ActiveShield 2.0 technology measures the temperature 3 million times a day and adjusts the power output to ensure safe charging.
30 W two-way fast charging: charge your devices quickly with 30 W power and recharge the power bank just as quickly with 20 W - so your devices are always ready to use. Charge an iPhone 16 from 0 to 58% in just 30 minutes.

21,99 €
08

Yeecka

Mini Power Bank 5000 mAh, PD20W Power Bank Quick Charging with Integrated USB-C Cable, Power Bank Small Portable Charger for Apple Watch Series 2-11/SE 1-3/Ultra 1-3, iPhone 17 16 15, Samsung

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Long battery life: the apple watch charger is equipped with a powerful battery with a capacity of 5000 mAh and can charge an iWatch S10 up to 10 times, an iPhone 16 about 1.4 times and AirPods 10 times. The LED indicator shows the remaining power. Built-in kickstand design gives you hands free while charging, allowing you to watch shows or operate your device hands-free.
Designed for Apple Watch: This mini power bank supports Apple Watch Series 11/10/9/8/7/6/5/4/3/2, SE/SE 2/SE 3, Ultra/Ultra 2/Ultra 3. Depending on the model, it can fully charge your iWatch in 1 to 2.5 hours.
Compact design: this mini power bank USB C is characterised by a compact and portable design, measures 8 x 4 x 2.8 cm and weighs 112 grams. Thanks to its lanyard design, it can be easily attached to backpacks, making it an ideal accessory for commuters, travel and outdoor activities. Due to its small size and light weight, it is convenient to carry in your bag to be charged anytime and anywhere.
Built-in USB-C fast charging cable: the power bank small has a built-in charging cable with 20W PD3.0 USB-C fast charging technology with bi-directional input/output. It can charge an iPhone 16 from 0% to 50% in less than 30 minutes - three times faster than traditional power banks, saving you valuable time. Compatible with iPhone, iPad, AirPods, Samsung devices and more.
4-in-1 Charging for Multiple Devices: The power bank has a built-in PD 20W USB-C charging cable with a bi-directional PD 20W USB-C charging port, a USB-C output port and a 3W wireless charging function for iWatches. It allows you to quickly charge up to four devices at the same time, so all your devices are fully charged and you don't need multiple chargers.

10,99 €
09

Anker

Anker Nano Power Bank, 5000 mAh Power Bank 22.5 W, Integrated Foldable USB-C Connector, Compatible with iPhone 15, Samsung S22/23 Series, Note20/10 Series, Huawei, iPad Pro/Air, AirPods and More –

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Package contents: The Anker Nano Powerbank (22.5 W, with built-in USB-C connector), a 0.6 m long USB-C to USB-C cable and instruction manual (English language not guaranteed).
Non-stop energy: Guaranteed uninterrupted charging when travelling. The reliable capacity of 5,000 mAh provides your devices with energy – no matter where you are.
Foldable USB-C plug: Say goodbye to tangled cables and protect your USB-C port with a convenient foldable design that allows you effortless, stress-free charging.
Double fast charging with two ports: Experience high-speed charging with two USB-C ports and our advanced PowerIQ 3.0 technology that delivers impressive 22.5 W power.
Compact design: Enjoy the ideal blend of style and functionality. Our power bank has been carefully designed to fit easily in your jacket pocket or handbag.

18,99 €
10

INIU

INIU Power Bank, 20,000 mAh, Fast Charging, USB-C Input & Output, 22.5 W External Mobile Phone Batteries, PD 3.0 QC 4.0, Small, Strong, for iPhone 15/14/13/12 Pro, Samsung Galaxy S23, etc.

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

INIU: The safe professional for fast charging: Experience the safest charging with over 38 million users worldwide. At INIU we use only the highest quality materials.
Charge your phone up to 61% in 30 minutes: With the improved 22.5 W power and the PD3.0 & QC4.0 fast charging technology, your phone can be charged to 61% in just 30 minutes
Charge your iPad Pro up to 34% in 30 minutes: Most power banks on the market cannot charge iPad or charge it at a snail’s pace. However, INIU, with a 22.5 W high speed output, can charge all existing iPads, even the latest, at full speed.
Charge three devices at the same time: With one USB-C port and two built-in USB ports, up to three devices can be charged at the same time. Thanks to the three-port design, you can share this portable power bank with family and friends.
2024 version USB-C input & output: Unlike most chargers that only have one USB-C input, INIU MegaPower 20 W has a USB-C input & output that fits perfectly with your new iPhones, iPad and all upcoming USB-C devices

26,99 €