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Two slim rectangular power banks, one black one white, side by side

No Sew

No Sew AS-TPB21 10000mAh power bank 2-pack

SKU CH-9ER9-NXYYA MPN AS-TPB21

Two slim 10000 mAh power banks with USB-C bidirectional charging and dual USB-A ports for 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 bidirectional port recharges the power bank and powers devices
  • Two 10000 mAh units keep one at home and one on the go
  • Slim 5.5 x 2.6 x .6 in profile fits in a pocket or purse
  • Lightweight 7.68 oz design adds minimal bulk to daily carry

Two-pack 10000mAh portable chargers

This product contains two slim power banks, each rated at 10000mAh capacity. Lithium-polymer cells provide 3.7 volts and up to 2.4 amps output. The set suits anyone who wants a backup unit at home and another for travel or daily carry.

Travellers and multi-device users

The dual USB-A and single USB-C ports allow three devices to charge simultaneously. Buyers who need faster charging protocols or higher single-port current should look elsewhere. Users wanting wireless charging or larger capacities will not find them here.

USB-C bidirectional port decides fit

The USB-C port handles both input and output, letting you recharge the bank and power devices with one cable. If your gear relies solely on USB-A or proprietary connectors, this feature adds no value.

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

One pack or two packs — which should I choose?

This listing is a 2-pack giving you two 10000mAh units, each 7.68 oz and 5.5×2.6×0.6 in, so you can keep one at home and one in your bag.

What does the 10000mAh rating mean for my phone charges?

Each unit holds 10000mAh at 3.7V; the dual USB-A and single USB-C outputs share a 2.4A total, so real-world phone top-ups depend on your device and cable.

How does the USB-C port work for both input and output?

The USB-C port is bidirectional — use it to recharge the power bank at up to 2.4A or to power a phone, tablet or earbuds from the same port.

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