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
White rectangular power bank with fold-up stand and circular Apple Watch charging pad

ALOGIC

ALOGIC R20KWCPB100W 21000 mAh power bank 100W USB-C Qi2 Apple Watch

SKU CH-DDGZ-7JTZZ MPN R20KWCPB100W

A 21000 mAh power bank delivering 100W USB-C, 18W USB-C, 15W Qi2 wireless, 5W Qi wireless and an integrated Apple Watch charger with MagSafe compatibility.

  • Output type5 V, 9 V, 12 V, 15 V, 20 V DC; 3A/5A
  • Input5 V, 9 V, 12 V, 15 V, 20 V
  • Product typePower Bank
  • Key featuresRoam 21,000 mAh Power Bank. 100 W USB-C, 18 W USB-C, 15 W Qi
  • 21000 mAh capacity keeps devices running longer
  • 100W USB-C output charges laptops at full speed
  • 15W Qi2 wireless plus 5W Qi charges phones cable-free
  • Built-in Apple Watch charger powers wearables directly
  • Snap-on stand and fold-up design enable hands-free viewing

Portable power for multi-device users

The ALOGIC Roam power bank stores 21000 mAh and delivers up to 100 W through its primary USB-C port. A second USB-C port supplies 18 W while Qi2 wireless charging reaches 15 W and standard Qi provides 5 W. An integrated Apple Watch charger and MagSafe-compatible surface round out the feature set for travellers carrying a phone, watch and laptop.

Build integration and cable reduction

The fold-up design includes a snap-on phone stand so the unit doubles as a desktop dock. One 100 W USB-C cable can recharge the bank at full speed and then power a laptop, removing the need for a separate laptop charger. Wireless pads eliminate watch and phone cables, and the 21000 mAh capacity is permitted on commercial flights.

Sustained-load behaviour

Under continuous 100 W output the bank maintains 20 V at 5 A until the stored energy depletes. The 18 W port and both wireless surfaces operate simultaneously without reducing the primary port’s voltage. Heat is managed passively through the folded aluminium shell so output remains stable during extended charging sessions.

How it compares

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

Price $153.99
Pricier than about 93% of the 1,307 comparable items (median $36.99).

Specifications

Product
Brand nameALOGIC
Model nameR20KWCPB100 W
Part numberR20KWCPB100 W
Product typePower Bank
Ports & slots
Output type5 V, 9 V, 12 V, 15 V, 20 V DC; 3A/5A
Input5 V, 9 V, 12 V, 15 V, 20 V
Size & build
Shipping weight0.77 kg
Package size208 × 108 × 46 mm

Questions about this item

What is the maximum sustained output the 100 W USB-C port can deliver before it throttles?

The USB-C port supports 5 V, 9 V, 12 V, 15 V and 20 V at up to 5 A, giving a peak of 100 W; sustained output will depend on the connected device's power profile and the bank's internal thermal limits.

How hot or loud does the power bank get when charging a laptop at 100 W for several hours?

The unit has no fan; it relies on passive cooling, so it will become warm to the touch during prolonged 100 W loads but remains silent.

Which cable must I already own to reach the 100 W rating from the USB-C port?

A USB-C to USB-C cable rated for 5 A / 20 V (100 W) Power Delivery is required; lower-rated cables will limit the output.

More in Portable Chargers & Battery Packs

Similar items