We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular power bank with built-in cables and digital display

charmast C2065 20000mAh power bank 22.5W built-in cables black

SKU CH-JAZK-E4GAF MPN C2065

A 20000mAh power bank with built-in USB-C, Micro-USB and Lightning cables, 22.5W fast charging, a digital percentage display and six simultaneous outputs

  • Total capacity20,000 mAh
  • Battery chemistryLithium polymer
  • Voltage5 V
  • Amperage3 A
  • Output typeFor iPhone, USB-C, USB-A, Micro
  • InputFor iPhone, USB-C, USB-A, Micro
  • 20000 mAh capacity delivers multiple phone charges
  • 5 W fast charging reaches 50 % in 30 minutes
  • Digital display shows exact battery percentage 0-100 %
  • Six output ports charge phone, tablet, earbuds and watch together
  • Built-in USB-C, Micro-USB and Lightning cables remove cord clutter

Ready for travel and emergencies

The Charmast C2065 is a 20000mAh lithium-polymer power bank with 22.5W fast charging. Built-in USB-C, Micro-USB and Lightning cables eliminate the need to carry separate cords. A digital display shows the exact remaining percentage from 0 to 100. Six output ports can charge multiple phones, tablets, earbuds or a smartwatch at the same time.

Replaces a tangle of chargers and cables

If you currently pack a separate power bank plus several cables for different devices, this unit consolidates them into one 340g block measuring 16.0 x 7.3 x 1.9 inches. The jump is worth it when you want 20000mAh capacity and 22.5W output without managing loose cables. Buyers who need more than 20000mAh or higher than 22.5W output should look elsewhere.

Check your devices and recharging plan

Ensure your phone, tablet or accessories accept 5V, 9V or 12V input profiles listed in the specifications. To recharge the power bank in about 6 hours you need an 18W or higher USB-C charger and a suitable cable; using the built-in USB-A cable takes roughly 12 hours. The unit operates at 5V and 3A maximum output.

How it compares

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

Price $52.99
Pricier than about 81% of the 1,307 comparable items (median $36.99).

Specifications

Product
Brand nameCharmast
Model nameC2065
Part numberC2065
Total capacity20,000 mAh
Product type20,000 mAh
Product colorBlack
Ports & slots
Output typeFor iPhone, USB-C, USB-A, Micro
InputFor iPhone, USB-C, USB-A, Micro
Power
Battery chemistryLithium polymer
Voltage5 V
Amperage3 A
Size & build
Measurements16.0 in × 7.3 in × 1.9 in
Product weight340 g

Questions about this item

What are the exact dimensions of the C2065 so I can check if it fits in my bag?

The power bank measures 16.0 in x 7.3 in x 1.9 in and weighs 340 grams.

How do I recharge the power bank using the built-in cables, and what is the common mistake?

Recharge via the built-in USB-C cable for about 6 hours or the built-in USB-A cable for about 12 hours; the mistake is using a charger below 18W which slows the USB-C recharge.

When will the built-in cables need replacing, and can I swap them?

The USB-C, Micro-USB and iPhone cables are permanently attached and cannot be replaced; if a cable frays or a connector fails the whole unit must be replaced.

More in Portable Chargers & Battery Packs

Similar items