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Grey ultra-slim power bank with built-in USB-C cable, aluminium finish

Aaoyun B2 10000mAh 22.5W Power Bank USB-C Ultra-Slim Grey

SKU CH-E92S-0FYET

A 10000mAh power bank delivers 22.5W fast charging through a built-in USB-C cable and fits in a 0.6in aluminium case weighing 6.9oz

  • Total capacity10,000 mAh
  • Compatible phone brandsFor ALL ?iPhone?iPhone 17, 16, 16 Plus, 16 Pro, 16 Pro Max,
  • Compatible phone modelsFor ALL ?iPhone?iPhone 17, 16, 16 Plus, 16 Pro, 16 Pro Max,
  • Battery chemistryLithium ion
  • Voltage10 V
  • Amperage5000 A
  • 10000mAh capacity fully charges iPhone 17 twice
  • 5W fast charging reaches 63% in 30 minutes
  • Built-in USB-C cable enables three-device simultaneous charging
  • Aluminium casing dissipates heat 40% faster than plastic
  • Ultra-slim 0.6 inch profile weighs only 6.9 ounces

Aaoyun B2 10000mAh Power Bank

The Aaoyun B2 is a 10000mAh portable power bank with a built-in USB-C cable for cable-free charging. Its aluminium alloy casing measures 0.6 inches thick and weighs 6.9 ounces, making it easy to carry in a pocket or small bag. The 22.5W PD fast-charging output suits smartphone users who need quick top-ups during commutes or travel.

Upgrade from slower 5V 2.1A chargers

This unit charges an iPhone 17 to 63 percent in 30 minutes, roughly three times faster than legacy 5V 2.1A adapters. Bidirectional PD lets the power bank itself reach full capacity in 3.5 hours, cutting downtime between uses. The jump is worth it when daily schedules leave only short windows to recharge devices.

Capacity and headroom

Lab-verified 10000mAh capacity delivers about two full charges for an iPhone 17 or 1.79 charges for a Samsung Galaxy S24. Simultaneous charging supports up to three devices via the built-in cable and additional ports. Heavy tablet users or multi-day off-grid trips will exhaust the reserve faster and may need a higher-capacity unit.

How it compares

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

Price $20.99
Cheaper than about 90% of the 1,307 comparable items (median $36.99).

Specifications

Product
Brand nameAaoyun
Model nameB2
Part numberB2
Total capacity10,000 mAh
Product type10,000 mAh
Product colorGrey
Ports & slots
Output typeUSB Type C
InputUSB Type C
Power
Battery chemistryLithium ion
Voltage10 V
Amperage5000 A
Size & build
Measurements4.47 in × 0.6 in × 2.67 in
Product weight6.9 oz
Compatibility
Compatible phone brandsFor ALL ?iPhone?iPhone 17, 16, 16 Plus, 16 Pro, 16 Pro Max, iPhone 15, 15 Plus, 15 Pro, 15 Pro Max, iPhone 14, 14 Plus, 14 Pro, 14 Pro Max, iPhone13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8, iPhone 8 Plus; ?Samsung?Samsung galaxy S23 Ultra / S23 / S23+ /Samsung galaxy S22 Ultra / S22 / S22+ / S21 Ultra /S21+ / S21 / S20 Ultra / S20+ / Z Flip / S10 / S10+ / Note20 / Ultra / Note10 / Note1
Compatible phone modelsFor ALL ?iPhone?iPhone 17, 16, 16 Plus, 16 Pro, 16 Pro Max, iPhone 15, 15 Plus, 15 Pro, 15 Pro Max, iPhone 14, 14 Plus, 14 Pro, 14 Pro Max, iPhone13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 12, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 11, iPhone SE (2nd generation), iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8, iPhone 8 Plus; ?Samsung?Samsung galaxy S23 Ultra / S23 / S23+ /Samsung galaxy S22 Ultra / S22 / S22+ / S21 Ultra /S21+ / S21 / S20 Ultra / S20+ / Z Flip / S10 / S10+ / Note20 / Ultra / Note10 / Note1

Questions about this item

How much space does the 0.6-inch thick power bank need in a bag or pocket?

The unit measures 4.47 by 2.67 by 0.6 inches and weighs 6.9 ounces, so it fits in a slim pocket or small pouch without adding bulk.

What is the correct way to use the built-in USB-C cable so it charges both the power bank and a phone?

Plug the integrated cable into a USB-C charger to recharge the power bank, then unplug it and connect the same cable to your phone for 22.5W output; the port is bidirectional but the cable only reaches one device at a time.

When will the 10000mAh lithium-ion cell need replacing?

Lithium-ion cells typically retain 80% capacity after 300 to 500 full cycles; with daily top-ups the pack lasts several years before runtime drops noticeably.

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