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Green rectangular power bank with digital display and multiple ports

WOOJONG

WOOJONG 20000mAh 45W Power Bank Green

SKU CH-ZWS4-YBGBH

High-capacity 20000mAh power bank delivers 45W fast charging for laptops and phones, powers four devices at once, and shows precise remaining charge on a digital display

  • TypePower Bank
  • 47% MacBook Pro 14 charge in 30 minutes via 45W output
  • 60% iPhone 15 Pro charge in 30 minutes with fast protocols
  • 20000mAh capacity charges phones multiple times and is airline approved
  • Four devices simultaneously via two USB-A and two Type-C ports
  • 0–100% digital display shows precise remaining power

Portable 20000mAh Power Bank

The WOOJONG power bank delivers 20000mAh capacity with a maximum 45W output through two USB-A and two USB-C ports. It supports PD 3.0 and QC 4.0 protocols for fast charging compatible devices. The unit is airline approved for carry-on luggage. A built-in digital display shows remaining charge from 0 to 100%.

Included USB-C Cable

A USB-C to USB-C cable is bundled so the power bank can be recharged at up to 45W input or used to charge compatible devices immediately. No separate cable purchase is required for USB-C devices. The four ports allow simultaneous charging for up to four devices at once.

45W Output Limit

Maximum output is capped at 45W, so laptops or devices requiring higher wattage will charge more slowly or not at all. The 20000mAh capacity provides multiple phone charges but limited runtime for larger laptops. Recharging the power bank itself takes approximately 2 hours at 45W input.

Highlights

  • 47% MacBook Pro 14 charge in 30 minutes via 45W output
  • 60% iPhone 15 Pro charge in 30 minutes with fast protocols
  • 20000mAh capacity charges phones multiple times and is airline approved
  • Four devices simultaneously via two USB-A and two Type-C ports
  • 0–100% digital display shows precise remaining power

Specifications

TypePower Bank

Questions about this item

How many full phone charges can the 20000mAh capacity deliver before the power bank itself needs recharging?

The 20000mAh capacity can charge a typical smartphone multiple times; the digital display shows remaining power from 0 to 100% so you know when to recharge.

Which port reaches its output limit first when charging a laptop and phone together at maximum speed?

The USB-C port supports up to 45W maximum output; a MacBook Pro 14 draws enough power to reach 47% in 30 minutes, which will hit that limit before the USB-A ports.

Does the 45W two-way fast charge generate noticeable heat or fan noise during a full recharge cycle?

The unit has no fan; the 45W input recharges the power bank in about 2 hours while the digital display lets you monitor temperature indirectly via remaining capacity.

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