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The product's shade and actual color may differ from what is shown in the picture, as the images are for illustrative purposes. The product description is general and may not include all the product's features.
4smarts 541409 power bank Lithium Polymer (LiPo) 20000 mAh Grey
49,00 €
Monthly payment from 2.16 €
3679689 541409
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Imagine you're on the move, the battery is almost empty - and you don't have to spend ages looking for a cable. With the integrated USB-C cable, you always have the solution with you. Simply plug it in and continue working immediately, no matter where you are. Whether you're traveling, in a café or on the way to your next adventure: you can charge your devices quickly and reliably. For even more power in everyday life, we recommend an optional 30W USB-C power adapter. This way, you remain flexible, independent and ready for anything at any time.
Energy for everything that accompanies you
Whether smartphone, tablet or headphones - you can charge up to three devices at the same time, without the need for a power socket. The integrated USB-C cable, USB-C port and USB-A port provide your technology with an efficient power supply. If you only use the integrated USB-C cable or the USB-C port individually, you can even charge small laptops reliably. The total power is intelligently distributed during simultaneous charging - perfect for anyone who wants to keep their most important devices ready for use at all times.
Everything in view - at all times
No more guesswork: the LCD display shows you exactly how much energy is left in your power bank at all times. This means you can plan perfectly, recharge in good time and never suddenly find yourself without power when you're out and about. Whether in everyday life or when traveling - you can always keep an eye on your charge status and are prepared for any adventure.
Big energy, smaller than an iPhone
Powerful on the go and more handy than ever: The compact power bank fits easily into any pocket with its 10.3 × 7.1 × 2.9 cm - and is even smaller than an iPhone. With a capacity of 20,000 mAh, 45 W charging power and a weight of just 0.33 kg - hardly heavier than your smartphone - it provides reliable power for tablets, Nintendo Switch, Steam Deck or small laptops such as a MacBook Air. The lightweight power bank offers enough power for the whole day and, thanks to less than 100 watt hours, remains your perfect companion even when traveling by plane. Ideal for commuters, adventurers and anyone who doesn't want to do without reliable energy in everyday life.
Design | |
| Product colour | Grey |
| Housing material | Polycarbonate (PC), Acrylonitrile butadiene styrene (ABS) |
| Built-in display | Yes |
| Number of simultaneously connected devices (max) | 3 |
| Power bank & device charging at once | Yes |
| Charger compatibility | Universal |
| Shape | Rectangle |
| Protection features | Electrostatic Discharge (ESD) protection, Overcharge protection |
Performance | |
| Battery technology | Lithium Polymer (LiPo) |
| Battery capacity | 20000 mAh |
| Charging source | USB |
| Fast charging | Yes |
| Fast charging technology | Quick Charge 3.0, Power Delivery 3.0, Hisilicon FCP |
| USB Power Delivery (USB PD) | Yes |
| USB Power Delivery up to | 45 W |
Power | |
| Total output power | 45 W |
Ports & interfaces | |
| USB Type-A output ports | 1 |
| USB Type-C connector | Yes |
| USB Type-C ports quantity | 1 |
| Input interface | USB Type-C |
Packaging data | |
| Package weight | 350 g |
Packaging content | |
| Manual | Yes |
| Quantity per pack | 1 pc(s) |
Weight & dimensions | |
| Width | 95 mm |
| Depth | 105 mm |
| Height | 32 mm |
| Weight | 330 g |