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Customer Reviews
4.5 out of 5 stars 2,711
4.5 out of 5 stars 2,711
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4.5 out of 5 stars 870
4.5 out of 5 stars 870
4.5 out of 5 stars 870
Price
$32.99$32.99 $32.99$32.99
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$22.99$22.99 $22.99$22.99 $22.99$22.99
Capacity
20000 milliamp hours 20000 milliamp hours 20000 milliamp hours 10000 milliamp hours 10000 milliamp hours 10000 milliamp hours
Output (Max)
45W 45W 45W 35W 35W 35W
Weight
380g 380g 380g 228g 228g 228g
Fast charging Protocols
PD 3.0 & QC 4.0 PD 3.0 & QC 4.0 PD 3.0 & QC 4.0 PD 3.0 & QC 4.0 PD 3.0 & QC 4.0 PD 3.0 & QC 4.0
Connector Type
USB Type C* 2, USB Type A*2 USB Type C* 2, USB Type A*2 USB Type C* 2, USB Type A*2 USB Type C* 2, USB Type A*1 USB Type C* 2, USB Type A*1 USB Type C* 2, USB Type A*1
Number of Ports
4 4 4 3 3 3
number Compatible Devicesof ports
Smartwatch, Smartphone, Tablet, Drone, Laptopevices Smartwatch, Smartphone, Tablet, Drone, Laptop Smartwatch, Smartphone, Tablet, Drone, Laptop Bluetooth Earbuds, Smartwatch, Smartphone, Tablet, Drone Bluetooth Earbuds, Smartwatch, Smartphone, Tablet, Drone Bluetooth Earbuds, Smartwatch, Smartphone, Tablet, Drone
【Super Fast Charging Power Bank】High speed portable phone charger with advanced PD 3.0 and QC 4.0 Protocol, this battery charger can quickly charge a MacBook Pro 14″ from 0% to 47% and an iPhone 15 Pro from 0% to 60% in 30 minutes
【20000mAh Large Capacity】With a massive 20000mAh capacity, this powerbank can charge your phone multiple times, which is airline approved, and incredibly portable.Good choice for outdoor camping, travel, business and home emergency
【Simultaneous Charging for 4 Devices】The portable power bank built in 2 USB A output ports and 2 Type C port (support Input & Output), which can power 4 devices at once, multiple people can share the power supply without queuing
【Two-way Fast Charge】The portable charger usb C port supports 45W maximum output power, it also supports 45W maximum input power, this portable battery charger can be fully charged in just 2 hours
【Smart Digital Display】Portable charger power bank has a built-in high-precision intelligent LED digital display. The power display accuracy is from 0 to 100%, makes it easy to keep track of the remaining power, you can recharge the external battery power bank when you need it
【Universally Compatible All Devices】Whether it’s a high-power device or one with lower current requirements, our portable battery accommodates them all. Smartphones, tablets, laptops, SteamDeck, wireless earbuds, smartwatches, drones – it works with them all
13 reviews for NOBIS Portable Charger, 20000mAh Power Bank, 45W Power Bank Fast Charging, Battery Pack with C to C Cable, Battery Bank with Digital Display for iPhone Android Laptop etc(Green)
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$32.99

Johnnymyers07 –
Charger that didn’t disappoint
It’s exactly what I needed for long days out and travel, primarily because the power capacity is incredible. It holds a serious amount of charge, easily getting my phone through multiple recharges with power still left over. This means no more battery anxiety when I’m away from an outlet for extended periods. It delivers consistent, efficient power whenever I need it, making it incredibly reliable.What really seals the deal, especially considering the massive power it holds, is its size. This power bank is surprisingly compact and portable. It’s not overly heavy or bulky, fitting easily into my bag or even a larger pocket without being cumbersome. It perfectly balances high capacity with genuine portability, making it ideal for travel or just everyday carry. Overall, this is a 5-star, top-notch power bank that delivers exceptional power in a perfectly sized package. Highly recommended for anyone needing reliable, portable charging!
Robb –
Durable charger and powerful product.
Multiple ports, fast charging. Great for long driving trips with use for multiple devices. Great price, I thought it would be more money. Thanks to Amazon for so many products available and such super-fast shipping to my front door. I hope you stay number one in the retail market. I will be a forever customer!
Sara –
10/10 worthy
Really good quality, charge fast, last long time, and charges a lot of devices!!! With all these benefits makes you ignore the weight and size
hasan Alhajali –
It works well for iPhone 17 Pro Max
It fits in my pants or jacket pocket, it’s lightweight and charging my iPhone 17 pro max really fast like 70% of the original charger’s capacity.It needs a fast charger to be charged and it takes more time on slower chargers.
Merlin –
Charges at and Delivers 45 Watts with Digital Display. Holds 20 Ah – delivers 13
11/30 Vendor Reply in LESS than 12 hours (Exceptional):(My Summary): Batteries hold 20 Ah. Conversion losses eat 35% just like every other vendor.Hence 13 Ah available. I will keep these.-We understand your concerns and would like to provide a clear explanation of how our batteries work.Our external battery consists of two 10,000 mAh cells, with a total rated capacity of 20,000 mAh. However, when charging your devices, several factors cause a reduction in usable capacity due to the following physical and technical principles:Heat energy loss: During charging, the battery generates heat, which consumes part of the stored energy.Internal consumption: The electronic components of the battery’s printed circuit board consume approximately 10% of the energy.Losses related to the charged device: Charged devices, such as smartphones, also consume energy in the form of heat, accounting for about 12%.Voltage conversion: Converting the battery’s internal voltage (3.7V) to the output voltage (5V) results in an energy loss of around 12%.Taking these factors into account, approximately 35% of the energy is consumed during the entire charging process. This is normal and aligns with industry standards.-11/30 update:Fine print on this power bank only lists Capacity of 13000 mAh! Will revise review if seller provides clarification.If no prompt reply I will return BOTH of these with complaint to Amazon-Original thoughts upon receipt (11/27)This was a 24 buck Black Friday Deal – and even at the list price of 33 bux THIS is a Deal! It fast charges AND delivers at 45 Watts with a 20 Ah capacity (Airline Safe) – so it will Really fast charge my iPad (Not like those claiming fast charge at only 22W)!. It has 2 USB-c (45 Watt Max PD in/out) and 2 USB-A (30W total) ports. The ports can be configured to trickle-charge for things like ear-buds and smart watches. The digital display is a really cool and helpful bonus. Awesome Versatile Powerbank. So great I even ordered another one for my wife 🙂 Highly Recommended.
Robert Rohm –
Fast Charger.
Really good strong output that works well with my Steamdeck. The 45W output charges my phone super fast and the over all battery size gives me like an extra 2 hours playtime
Amazon Customer –
10/10 would recommend
You can tell this is a high quality product right out of the box. The heft and smooth finish feel great in the hand, but it’s still easily portable and adds little extra weight or bulk to my bag. The charging is very good, and it has been very useful for going out on long adventures without worry of dead batteries
Jess Arbuckle –
Nice portable charger
Works well and I am able to charge many things before recharging.
Dru –
Worked great during a time with no electricity. Even was able to charge my MacBook. Quick to recharge.
HS4427 –
Tient très bien la charge. On peut charger 2 téléphones en même temps sans qu’il se décharge rapidement. Pas utilisé pendant 2 semaines et il la charge n’avait pas baissé. Connaître son reste de charge est un sacré +.
EZ –
Robust snabbladdare som laddar mobilen snabbt. Kan rekomendera
Javier Dominguez –
Es una solución de carga sobresaliente para aquellos que necesitan energía rápida y duradera para múltiples dispositivos, incluidos portátiles.Su capacidad de 20000mAh permite varias cargas de smartphones. La compatibilidad con PD3.0 y QC4.0 asegura carga rápida, lo cual es vital hoy en día. La pantalla LED es un gran plus para saber el estado exacto de la batería, y su color verde le da un toque moderno.Pros:* Gran capacidad (20000mAh): Suficiente para múltiples cargas de móvil o una de portátil.* Carga rápida (45W, PD3.0/QC4.0): Carga tus dispositivos y el propio power bank a gran velocidad.* Compatibilidad amplia* Pantalla LED: Indicador de porcentaje de batería preciso y muy útil.* Diseño robusto y elegante: Acabado atractivo y construcción sólida.* Cables IncluidosContras:* Tamaño/Peso: Dada su capacidad, no es el power bank más pequeño o ligero, aunque es esperable.* Precio: Podría ser más elevado que power banks de menor capacidad o sin carga rápida.En Resumen:El NOBIS Powerbank de 20000mAh y 45W es una compra muy recomendable para usuarios que necesitan una solución de carga portátil potente, rápida y versátil. Es ideal para viajeros, estudiantes o profesionales que dependen de sus dispositivos en movimiento. Ofrece un equilibrio excelente entre capacidad, velocidad y características. ¡Mantén tus gadgets cargados allá donde vayas!
Brigitte Schröder –
Ich bin mit der NOBIS Power Bank 20000mAh sehr zufrieden. Mein Handy wird schnell geladen und die Powerbank kann mehrere Handyladungen hintereinander ermöglichen und zwar ohne selber nachgeladen zu werden. Kann es jedem empfehlen.