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Black slim power bank with built-in cables and digital display

charmast CB01 10000mAh power bank

SKU CH-65JB-HWCYY MPN CB01

A 10000mAh power bank with built-in USB-C and Micro-USB cables, 22.5W fast charging, a digital percentage display and six simultaneous outputs in a 37Wh flight-friendly design

  • Total capacity10,000 mAh
  • Battery chemistryLithium polymer
  • Voltage5 V DC
  • Output typeFor iPhone, USB-C, Micro
  • InputFor iPhone, USB-C, Micro
  • Measurements5.83 in × 2.74 in × 0.71 in
  • Built-in USB-C, Micro-USB and Lightning cables eliminate extra cords
  • 5W PD fast charging delivers significant power in 30 minutes
  • Digital display shows exact remaining capacity from 0-100%
  • Six output ports charge phone, tablet, earbuds and watch together
  • 37Wh capacity meets airline carry-on limits for worry-free travel

Pocket-Sized Power for Daily Carry

The Charmast CB01 is a 10000mAh lithium-polymer power bank with three built-in cables for iPhone, USB-C and Micro-USB devices. Its 22.5W PD fast charging tops up a phone in about 30 minutes, while a digital display shows the exact remaining percentage. Six output ports let you charge a phone, tablet, earbuds and smartwatch all at once. At 37Wh it meets airline carry-on rules for hassle-free travel.

Plug In and Go — No Extra Cords Needed

Installation is instant because the USB-C, Micro-USB and Lightning cables are permanently attached; just pull one out and connect your device. A long press on the power button switches the ports to low-current mode for small accessories such as AirPods. The unit recharges through its built-in cable, a USB-C input or a Micro-USB input, reaching full capacity in roughly 4.5 hours with a 15W charger or about 6 hours with a 10W adapter.

Check Your Bag and Charger First

Before ordering, verify that your carry-on luggage can accommodate a 5.83 by 2.74 by 0.71 inch slab weighing 240 grams. Confirm you own a wall adapter rated at 10W or higher, preferably 15W, to hit the faster 4.5-hour recharge time. Ensure the devices you plan to power use Lightning, USB-C or Micro-USB connectors, because no other cable types are included or supported.

How it compares

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

Price $32.99
Cheaper than about 63% of the 1,307 comparable items (median $36.99).

Specifications

Product
Brand nameCharmast
Model nameCB01
Total capacity10,000 mAh
Product type10,000 mAh
Product colorBlack
Ports & slots
Output typeFor iPhone, USB-C, Micro
InputFor iPhone, USB-C, Micro
Power
Battery chemistryLithium polymer
Voltage5 V DC
Size & build
Measurements5.83 in × 2.74 in × 0.71 in
Product weight240 g

Questions about this item

How do I verify the power bank is charging correctly after setup?

The digital display shows the exact battery percentage from 0 to 100%, so you can confirm it is working by watching the number change.

What cables are included and what must I supply?

USB-C and Micro-USB cables are built in; a separate charger block of 10 W or above is needed to recharge the power bank itself.

Which capacity suits daily phone top-ups and short trips?

The 10000mAh / 37 Wh unit gives multiple phone charges and stays well within the 100 Wh airline carry-on limit.

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