
Portable Charger,50000mAh Power Bank Built-in Cable, 22.5W PD USB C In & Out Fast Charging, External Battery Pack with 6 Output & 2 Input, Travel Phone Charger for iPhone 17/16/15/14/13/12(Black)
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AI Verdict
This is a 50000mAh power bank with 22.5W PD fast charging and 6 simultaneous outputs, designed for extended off-grid use.
This power bank is a strong fit for users needing extreme capacity and multiple charging options away from wall outlets. Its 50000mAh battery and 6 simultaneous outputs are ideal for extended off-grid use or powering many devices at once.
If you need a power bank for air travel, look for models with capacities under 27027mAh (100Wh).
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Pros
- 50000mAh capacity provides over 10 full charges for most smartphones.
- 22.5W PD and QC 3.0/4.0 fast charging can charge an iPhone 17 to 55% in 30 minutes.
- Includes 4 built-in cables (Type-C, iOS, Micro, USB-A) and 3 additional ports (1x Type-C, 2x USB-A) for 7 physical output options.
- Supports charging up to 6 devices concurrently.
- LED digital screen displays real-time power percentage.
- Built-in smart protection against overcharge, overvoltage, overcurrent, and short-circuit.
Cons
- The 50000mAh capacity makes it heavy at 503g and not pocket-sized.
- Takes a long time to fully recharge the power bank itself.
- Built-in cables are short, which can be inconvenient for some users.
- Can get warm when charging multiple devices simultaneously.
- Not permitted on airplanes due to its 50000mAh capacity.
Dimension Scores
It offers 22.5W PD and QC 3.0/4.0 fast charging, capable of charging an iPhone 17 to 55% in 30 minutes.
It includes built-in security features like overcharge and short-circuit protection, but some users report it getting warm.
With 4 built-in cables (Type-C, iOS, Micro, USB-A) and 3 additional ports, it supports a wide range of devices including iPhones, Androids, and tablets.
Weighing 503g and measuring 1.18 x 3 x 6.5 inches, it is too heavy and bulky for pocket carry and cannot be taken on planes.
Best For
- Extended camping trips or outdoor activities without access to power outlets.
- Emergency preparedness kits for power outages.
- Charging multiple devices for a group of people simultaneously.
- Heavy phone users needing to charge their device more than 10 times.
Not Recommended For
- Air travel due to its 50000mAh battery capacity.
- Everyday pocket carry due to its 503g weight and 1.18 x 3 x 6.5 inch dimensions.
- Users who prioritize the fastest possible recharge time for the power bank itself.
Watch Out For
- The 50000mAh capacity means you can't take this power bank on an airplane.
- Recharging the power bank from empty to full takes a significant amount of time, as reported by users.
- The built-in cables are short, which can make using a device while charging awkward for some.
- The unit can generate heat when charging several devices at once.
Full Specifications
| ASIN | B0FDKH3DPP |
| Brand | YILANS |
| Color | Black |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Item Weight | 1.14 pounds |
| Manufacturer | Shenzhen Zihao technology Co., LTD |
| Connector Type | USB Type C and USB Type A |
| Battery Capacity | 50000 Milliamp Hours |
| Special features | Built In Cable, Charge 6 Devices Simultaneously,Digital Display,Extra-large capacity, Fast Charging, Multiple safety protections, Pocket Size |
| Whats in the box | Power Bank, USB Charing Cable, User Manual |
| Item model number | JM4 Pro |
| Product Dimensions | 5.61 x 2.88 x 1.12 inches |
| Other display features | Wireless |
What Buyers Say
Users frequently highlight the sheer capacity of this 50000mAh power bank, often mentioning its ability to charge phones multiple times over days. The convenience of the built-in cables is a recurring positive, eliminating the need to carry extra wires. However, the trade-off for this capacity is its considerable weight and size, making it unsuitable for light travel or air transport. Some users also note that recharging the power bank itself takes a long time.
“This thing is a brick, but it keeps my phone alive for like a week straight on camping trips, and I don't gotta remember cables, so whatever.”
Common Praise
- Provides over 10 full charges for most smartphones.
- Built-in cables eliminate the need to carry separate charging wires.
- Can charge up to 6 devices simultaneously.
- LED display shows the exact remaining battery percentage.
- 22.5W fast charging significantly reduces device charging times.
Common Complaints
- Too heavy and bulky for everyday pocket carry.
- Recharging the power bank itself takes a very long time.
- Built-in cables are short, limiting device placement during charging.
- Gets warm when multiple devices are connected and charging.
- Cannot be taken on airplanes due to its large capacity.
Ownership Tips
- The 50000mAh capacity really does last for days, even with multiple devices.
- You'll need to plan ahead for recharging the power bank, as it's an overnight job.
- The built-in cables are handy, but their short length means your phone will be right next to the power bank.
- It's definitely a bag item, not a pocket item, due to its size and weight.
- The LED display is super useful for knowing exactly how much power is left, no guessing.
Frequently Asked Questions
Can I take this power bank on an airplane?
No, this 50000mAh power bank exceeds the typical 27027mAh (100Wh) limit for air travel and is not permitted on planes.
How many devices can I charge at once?
You can charge up to 6 devices simultaneously using a combination of its built-in cables and extra ports.
Does it support fast charging for my iPhone?
Yes, it supports 22.5W PD fast charging and can charge an iPhone 17 up to 55% in just 30 minutes.
What kind of cables are built into the power bank?
It has four built-in cables: Type-C, iOS, Micro, and USB-A.
How heavy is this power bank?
The power bank weighs 503g, which is about 1.1 pounds.
Buying Guide
When looking at power banks, you need to consider capacity (mAh), charging speed (Watts), and the number/type of outputs. Higher mAh means more charges, but also more weight and longer recharge times for the power bank itself. Faster wattage means your devices charge quicker, but ensure your devices can handle that speed. Multiple outputs are useful if you need to charge several gadgets at once.
50000mAh Capacity
This number tells you how much energy the power bank can store. A 50000mAh power bank can fully charge a typical smartphone (around 3000-4000mAh battery) more than 10 times, like having a portable wall outlet for days.
22.5W PD Fast Charging
This indicates how quickly the power bank can deliver power to your devices. 22.5W is considered fast charging for most phones, meaning your device will power up significantly faster than with a standard 5W charger.
Built-in Cables & Multiple Outputs
Built-in cables mean you don't have to carry extra wires, reducing clutter. Having multiple output ports allows you to charge several devices simultaneously, which is handy for groups or if you have many gadgets.
Alternatives
If you need something lighter for daily carry or air travel, look for power banks with 10000mAh to 20000mAh capacity and similar 20W-30W fast charging. For laptop charging, seek power banks with 60W or higher Power Delivery (PD) output.



