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Black rectangular power bank with built-in USB-C lanyard cable

INIU P512 20000mAh 22.5W Power Bank Black

SKU CH-9XKX-8DRT8

A 20000mAh lithium-polymer power bank delivers 22.5W fast charging via built-in USB-C cable and extra ports

  • Type20000 milliamp_hours
  • ColorBlack
  • Capacity20000 milliamp_hours
  • Chemicallithium_polymer
  • Volt12 volts_of_alternating_current
  • OutputOutput: USB Type C * 2 + USB C *1
  • Pocket-sized 20000mAh delivers up to four phone charges
  • Detachable nylon USB-C lanyard cable outlasts standard cords
  • 5W fast charge reaches 70% on Samsung S25 in 25 minutes
  • TSA-approved capacity plus built-in flashlight for travel
  • 18-layer SmartProtect system monitors temperature for safe daily use

Pocket-Sized 20000mAh Power Bank

The INIU P512 packs a 20000mAh lithium polymer cell into a 4.1 in x 2.8 in x 1.2 in black chassis. It delivers up to 22.5W output through two USB Type-C ports and a built-in USB-C cable that doubles as a detachable nylon lanyard. The unit weighs approximately 11 oz and includes a built-in flashlight plus an 18-layer SmartProtect safety system.

Travellers needing multiple phone charges without

This power bank suits users who want roughly four full phone recharges from a pocketable device and value the convenience of an integrated cable. Buyers who need more than 20000mAh capacity, higher than 22.5W output, or wireless charging should look at larger or differently equipped units.

22.5W maximum output

The single spec that decides fit is the 22.5W peak power rating; it enables 25-minute charges to 70% on a Samsung S25 or 60% on an iPhone 16, but devices requiring 30W or more will not charge at their fastest speed.

Highlights

  • Pocket-sized 20000mAh delivers up to four phone charges
  • Detachable nylon USB-C lanyard cable outlasts standard cords
  • 5W fast charge reaches 70% on Samsung S25 in 25 minutes
  • TSA-approved capacity plus built-in flashlight for travel
  • 18-layer SmartProtect system monitors temperature for safe daily use

Specifications

BrandINIU
ModelP512
Type20000 milliamp_hours
ColorBlack
Part NumberP512
Capacity20000 milliamp_hours
Chemicallithium_polymer
Volt12 volts_of_alternating_current
OutputOutput: USB Type C * 2 + USB C *1
InputOutput: USB Type C * 2 + USB C *1
Dimension4.1 in x 2.8 in x 1.2 in

Questions about this item

Will the 20000mAh capacity still charge my older phone that only takes 5W input?

Yes, the bank negotiates the correct power level automatically, so a 5W phone will charge safely at its own speed.

How can I confirm the 22.5W fast charge is actually active after I plug in my Samsung S25?

The phone will show its fast-charge indicator and reach about 70% in 25 minutes when the battery is low.

Does the box include a wall charger for the 5.4-hour recharge, or do I need to buy one separately?

A wall charger is not included; you must supply a 20W USB-C charger to achieve the 5.4-hour recharge time.

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