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Black rectangular power bank with rounded edges and a built-in USB-C cable, metal finish

Kesguar B3 20000mAh 22.5W Power Bank Black

SKU CH-DRAR-T3P9M

A 20000mAh power bank with 22.5W fast charging, built-in USB-C cable and aerospace-grade aluminium case

  • Total capacity20,000 mAh
  • Compatible phone brandsSmartphone
  • Compatible phone modelsSmartphone
  • Battery chemistryLithium ion
  • Voltage28 V
  • Output typeUSB Type C, USB Type A
  • 20000mAh capacity charges iPhone 16 Pro 4.5 times
  • 5W PD 3.0 and QC 4.0 deliver 65% charge in 30 minutes
  • Built-in USB Type-C cable works with smartphones and laptops
  • CNC-machined aluminium alloy case dissipates heat 40% faster than plastic
  • Airline-approved design backed by 3-year replacement if capacity falls below 70%

True 20000mAh capacity

The Kesguar B3 power bank provides a lab-verified 20000mAh lithium-ion capacity in a black aluminium case. It is intended for users who need reliable portable power for smartphones, tablets and small USB devices during travel or daily use. The integrated USB-C cable adds convenience by removing the need to carry a separate lead.

Sustained 22.5W output with metal cooling

The power bank supports 22.5W Power Delivery 3.0 and Quick Charge 4.0 fast charging. Its CNC-machined aluminium alloy casing dissipates heat 40 percent faster than plastic alternatives, preventing thermal throttling during extended charging sessions. This allows the unit to maintain full charging speed without slowdown.

Airline-approved 28V limit

The 28-volt rating keeps the power bank within typical airline carry-on limits for lithium-ion batteries. It offers USB Type-C and USB Type-A ports for both input and output, but buyers who need higher voltages or specialised laptop charging protocols should check compatibility before purchase.

How it compares

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

Price $40.99
Pricier than about 59% of the 1,307 comparable items (median $36.99).

Specifications

Product
Brand nameKesguar
Model nameB3
Part numberB3
Total capacity20,000 mAh
Product type20,000 mAh
Product colorBlack
Ports & slots
Output typeUSB Type C, USB Type A
InputUSB Type C, USB Type A
Power
Battery chemistryLithium ion
Voltage28 V
Size & build
Measurements4.48 in × 2.64 in × 1.07 in
Product weight11.53 oz
Compatibility
Compatible phone brandsSmartphone
Compatible phone modelsSmartphone

Questions about this item

Does the 22.5W PD 3.0 output overheat the metal case during all-day use?

The CNC-machined aluminium alloy dissipates heat 40% faster than plastic, so the case stays cool even at full 22.5W output for extended periods.

What cables do I already need to charge the power bank itself?

You can recharge it through either the USB Type-C or USB Type-A input ports using any compatible cable you already own.

Will the built-in Type-C cable charge my older iPhone 13 without an extra adapter?

The built-in cable is USB Type-C only, so an iPhone 13 still requires a separate Lightning cable or a Type-C-to-Lightning adapter.

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