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Small rectangular power bank with built-in USB-C port and cable

WOOJONG

WOOJONG 4500mAh 20W USB-C power bank

SKU CH-GXZG-NNG2F

A 4500mAh power bank with 20W USB-C fast charging and pass-through support for iPhone 15, 16, 17 and Galaxy S22, S23, S24, S25 series

  • Product typePower Bank
  • Charges iPhone 15 Pro to 50% in 30 minutes with 20W output
  • 4500mAh capacity powers iPhone 15 for daily use
  • Ultra-compact lipstick size slips into pocket or purse
  • Built-in USB-C port works with iPhone 15/16/17 and Galaxy S22/S23/S24/S25
  • Pass-through charging and 18W recharge keep both devices powered

What it is

A pocket-sized 4500mAh power bank with a built-in USB-C connector delivers 20W fast charging for iPhone 15, 16 and 17 series plus Galaxy S22, S23, S24 and S25 models. The integrated plug removes the need for a separate cable so the unit slips into a pocket or purse. Pass-through support lets the bank recharge at 18W while it powers a connected phone.

Deciding spec

The single figure that determines suitability is the 4500mAh capacity, which supplies roughly one full charge for a typical modern smartphone. Users who need multiple top-ups between wall outlets should look for a higher-capacity pack.

Sustained behaviour

During extended use the self-developed circuit design limits heat build-up so output remains stable rather than throttling after a short burst. The 18W recharge rate refills the bank quickly between cycles, keeping it ready for the next device.

How it compares

Measured against everything we stock in Portable Chargers & Battery Packs, at today’s prices. Recalculated every night.

Price $30.99
Cheaper than about 68% of the 1,307 comparable items (median $36.99).

Specifications

Product
Product typePower Bank

Questions about this item

How much of a typical phone charge does the 4500 mAh capacity actually deliver?

The 4500 mAh cell can charge an iPhone 15 from empty to about 50 percent in roughly 30 minutes using the 20 W output, giving a useful top-up for daily use.

What does the USB-C port support for both charging the power bank and connected devices?

The dual USB-C port handles 20 W output to a phone and accepts up to 18 W input for recharging the pack, with pass-through so both can happen at once.

Will this lipstick-sized unit fit in a small pocket or purse without a separate cable?

The ultra-compact stick design has a built-in USB-C connector so no extra cord is needed; it slips into a pocket or small bag easily.

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