Cuktech ZMI QB818 30W 10000mAh Power Bank

Cuktech ZMI QB818 30W 10000mAh Power Bank

Two things separate a good 10000mAh power bank from a cheap one: how fast it charges your phone, and how fast it refills itself. The QB818 does 30W in both directions, which means it tops itself up in a fraction of the time an 18W unit takes. It sits in our power banks range.

Output

The USB-C port delivers up to 30W and the USB-A up to 22.5W, with support for PD 3.0, QC 3.0, SCP, FCP and AFC. That protocol list matters in Bangladesh — SCP and FCP cover Huawei and Honor devices, AFC covers Samsung, and PD covers iPhones and laptops that charge over USB-C. Both ports can be used at once, sharing the 30W.

Two-way fast charging

The same 30W applies to recharging the power bank itself. With a 30W wall charger it refills far faster than the 18W or 5W inputs common at this capacity, which is the difference between charging it overnight and charging it while you get ready.

Size and small devices

10000mAh at 36.3Wh in a 98.5 × 50.2 × 26.25mm body weighing about 202g — small enough for a jacket pocket. A low-current mode, activated by double-pressing the power button, keeps the output alive for earbuds and smartwatches, which draw too little for a normal power bank to stay awake.

Buying it from Kolorob

Sourced through authorised retailers in Bangladesh. Warranty terms are listed in the specification above. Delivery is nationwide — see our delivery policy for charges by zone.