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Top User RatedUgreen PB721 20000mAh 130W Multicolour
USB-A: 1, USB-C: 2, Fast Charging
from52,21 € at 14 stores 
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Clear- The values refer to the manufacturer’s nominal capacity. The actual available capacity is lower due to losses during energy conversion.
- Small (Up to 9000mAh): He/she can give us 1 - 1.5 charges.
- Medium (10000-19000mAh): Can provide 2–3 charges. The most popular choice for everyday use.
- Large (20000-29000mAh): About 4-5 phone charges or 1 tablet/laptop charge. Ideal for travel.
- Very Large (30000mAh and above): For many days without a power outlet, multiple devices, or a Laptop / MacBook.
- Quick Charge: Support for fast charging for a significant reduction in waiting time.
- Magnetic Wireless Charging: Holds the device securely with magnets while charging wirelessly (MagSafe / Qi2).
- Solar: They feature a built-in solar panel, which allows them to recharge using sunlight. They are an ideal solution for use in places where there is no access to a power outlet.
- Pass-Through Charging: It charges your devices at the same time while the power bank itself is charging from the wall outlet.
- Suitable for Air Travel (Fly-Safe): You can take it with you on the plane. It must be carried only in hand luggage, never in checked baggage. Up to 2 power banks per passenger are allowed. Always check the airline’s rules regarding in-flight use.
- Up to 20W: Basic fast charging for smartphones (iPhone & Android) and headphones.
- 20W - 44W: Fast charging for smartphones and tablets (including Samsung Super Fast Charge).
- 45W - 65W: Suitable for laptops (MacBook Air, ThinkPad, etc.) and ultra-fast phone charging.
- 66W+: For demanding laptops (MacBook Pro, gaming laptops) or simultaneous charging of multiple devices.
- Power Delivery (PD): International fast charging standard via USB-C port. Essential for fast charging iPhone, iPad, newer Android devices, as well as laptops / MacBooks (when the power is 45W or higher)
- MagSafe: Magnetic wireless charging that attaches to the back of iPhones (12 and newer).
- Qi2: The latest global standard for fast magnetic wireless charging (15W) for iPhone and Android.
- Quick Charge (QC): Qualcomm fast charging technology, widely used in Android devices (Xiaomi, Motorola, Realme, etc.), mainly through traditional USB-A ports.
- PPS: Special USB-PD technology. It is necessary to achieve the maximum charging speed (Super Fast Charging 25W / 45W) on Samsung Galaxy and Google Pixel devices.
- Qi Wireless: Simple wireless charging without magnets (place the device on top of the power bank).
- USB-C: They offer compatibility with many devices, such as smartphones and tablets. Many models also support bidirectional operation, allowing both output and input charging through the same port.
- Lightning: Magnetic wireless charging that attaches to the back of iPhones (12 and newer).
- Up to 150 g: Extremely lightweight. Fits easily in a jeans pocket or a small bag. Ideal for a quick emergency charge during the day.
- 151-200 g: Standard size. It weighs about as much as a regular iPhone or Samsung. It won’t weigh you down at all in your daily commute, in your jacket, or in your work bag.
- 201-300 g: Medium weight. You’ll notice it if you put it in your pocket, but it’s perfect for keeping permanently in a backpack or a handbag. Usually, this is where you’ll find high-capacity models.
- 301-400 g: Relatively heavy. Intended for those going away for a three-day trip, heading to a festival, or wanting to charge their phone multiple times without access to a power outlet.
- Over 400g: "Heavy-duty powerhouse." Designed to stay in your backpack or car. It has massive capacity and is ideal for charging laptops, tablets, or for use while camping.
- The output ports of a power bank determine the number of devices you can charge simultaneously. More ports mean greater flexibility and the ability to charge multiple devices at the same time.