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Two slim rectangular power banks, one black one white, stacked flat

Miady AS-TPB21 2-pack 10000mAh power bank

SKU CH-0ZYB-EN6BG MPN AS-TPB21

Two slim 10000 mAh power banks with dual USB-A and USB-C ports charge three devices at once

  • Total capacity10,000 mAh
  • Battery chemistryLithium polymer
  • Voltage3.7 V
  • Amperage2.4 A
  • Output typeUSB
  • InputUSB
  • Charge three devices simultaneously via dual USB-A and USB-C ports
  • USB-C port works for both input and output, simplifying cables
  • Two 10000 mAh units keep one at home and one on the go
  • Slim 5.5 × 2.6 × .6 in design fits pocket or purse easily
  • Each unit weighs 7.68 oz for lightweight everyday carry

Two-pack 10000 mAh power bank

This set includes two slim portable chargers, each rated at 10000 milliamp_hours. They use lithium-polymer cells at 3.7 volts and supply up to 2.4 amps through dual USB-A ports and a USB-C port. The pack suits travellers, students or remote workers who want a spare unit at home and one in a bag.

Users who need simultaneous charging for three

Each bank can power a phone, tablet and earbuds at the same time thanks to its three output ports. The USB-C port is bidirectional, so it recharges the bank and powers connected gear. Buyers who want wireless charging, higher single-port current or a single larger-capacity unit should look elsewhere.

Sustained output at 2.4 amps across multiple ports

Under continuous load the bank delivers its rated 2.4 amps shared between the active ports. The slim 7.09 x 5.51 x 0.79 inch body and 437 gram weight per pair keep heat dissipation modest, so output remains steady during extended charging sessions rather than throttling after a short burst.

How it compares

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

Price $28.99
Cheaper than about 73% of the 1,307 comparable items (median $36.99).

Specifications

Product
Brand nameMiady
Model nameAS-TPB21
Part numberAS-TPB21
Total capacity10,000 mAh
Product type10,000 mAh
Product colorBlack+White-1
Ports & slots
Output typeUSB
InputUSB
Power
Battery chemistryLithium polymer
Voltage3.7 V
Amperage2.4 A
Size & build
Measurements7.09 in × 5.51 in × 0.79 in
Product weight437 g

Questions about this item

What cables do I need to charge three devices at once from the two USB-A ports and one USB-C port?

You need cables that match each device — USB-A to Lightning, USB-A to USB-C, USB-C to USB-C, or similar — because the power bank only provides the ports.

Will my older phone that only accepts 1 A charging work safely with the 2.4 A USB-A outputs?

Yes, the power bank negotiates the current so a 1 A device draws only what it needs.

How can I confirm the power bank is recharging itself through the USB-C port?

The LED indicators flash while the USB-C input is active and stay solid when the 10000 mAh capacity is full.

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