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Black rectangular power bank with rounded edges, digital display and built-in flashlight

DIAMUAR P58DL 30000mAh 30W power bank

SKU CH-WK4N-MKSNP MPN P58DL

30,000 mAh lithium-polymer power bank delivers 30 W USB-C fast charging, powers three devices at once, and includes a 3 W flashlight with digital display

  • Total capacity30,000 mAh
  • Battery chemistryLithium polymer
  • Voltage3.7 V
  • Output typeUSB Type A, USB Type C
  • InputUSB Type A, USB Type C
  • Measurements5.74 in × 2.87 in × 1.25 in
  • 30W fast charging powers iPhone 16 to 100% in 60 minutes
  • Three devices charge simultaneously through USB-C and USB-A ports
  • Built-in 3W flashlight delivers 360 lumens for 50 hours of light
  • Digital display shows real-time remaining power at a glance
  • 30000mAh capacity gives roughly 5 full iPhone 12 charges

Capacity and purpose

The DIAMUAR P58DL is a 30000mAh lithium-polymer power bank that delivers up to 30W Power Delivery fast charging. It suits travellers and commuters who need multiple phone recharges and a built-in 3W LED flashlight for low-light situations.

Who it suits and who it does not

The unit provides roughly five full cycles for an iPhone 12, 4.5 cycles for an iPhone 13 and four full charges for a Galaxy S22, making it practical for users carrying a phone and a tablet. Buyers who need more storage capacity than 30000mAh or who require laptop-class output above 30W should look at something else.

Setup checks before ordering

Confirm that your devices accept USB Type-A or USB Type-C input at 5V/3A or 9V/2A so they can use the 30W PD and 22.5W SCP profiles. The power bank itself recharges through its USB-C port at up to 30W, so ensure you have a compatible charger and cable to reach the six-hour refill time. The 5.74 in x 2.87 in x 1.25 in dimensions should fit your bag or pocket.

How it compares

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

Price $54.99
Pricier than about 82% of the 1,307 comparable items (median $36.99).

Specifications

Product
Brand nameDIAMUAR
Model nameP58DL
Part numberP58DL
Total capacity30,000 mAh
Product type30,000 mAh
Product colorBlack
Ports & slots
Output typeUSB Type A, USB Type C
InputUSB Type A, USB Type C
Power
Battery chemistryLithium polymer
Voltage3.7 V
Size & build
Measurements5.74 in × 2.87 in × 1.25 in
Product weight0.93 lb (0.42 kg)

Questions about this item

Which cables or adapters do I need to charge an iPhone 15 from the USB-C port?

Use a USB-C to Lightning cable or a USB-C to USB-C cable with a Lightning adapter; the power bank’s USB-C output supports PD 30W for fast charging.

Will the USB-A ports still fast-charge a Galaxy S22 that only supports older Quick Charge versions?

Yes, each USB-A port delivers up to 22.5W via SCP and 9V/2A, which is compatible with Quick Charge 4.0 and earlier versions used by the S22.

How can I confirm the power bank is recharging itself at the full 30W rate?

The LED display shows the input voltage and current in real time; when it reads 9V/2A or 5V/3A during recharge, the unit is drawing its maximum 30W.

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