QCY PB20A 45W PD 20000mAh Power Bank

QCY PB20A 45W PD 20000mAh Power Bank

Twenty thousand milliamp-hours is roughly four full charges for a typical phone, and 45W is the point at which a power bank stops being a phone accessory and becomes able to run a laptop. More capacities in power banks.

What 45W actually powers

Forty-five watts is enough for a MacBook Air, most thin Windows laptops and a Nintendo Switch at full speed, alongside any phone or tablet. A phone will never draw all of it — most cap somewhere between 20W and 33W — but the headroom means the bank is not the limiting factor. Three devices can charge together, though the total wattage is shared between them, so simultaneous charging is slower per device than one at a time.

The built-in cable and the display

A Type-C cable is attached to the body. That sounds like a small thing until the morning you leave the house with the power bank and without a cable. The LED readout shows remaining charge as a percentage rather than four ambiguous dots, which is the difference between guessing and knowing whether there is enough left for the journey home.

Capacity, and what you will actually get

A 20000mAh bank does not deliver 20000mAh to your phone. Voltage conversion costs energy, so expect roughly sixty to seventy per cent of the rated figure to arrive — around 12000 to 14000mAh in practice. That is normal and true of every power bank on the market; a brand quoting a higher real-world number is quoting it wrong. We would rather you knew that before buying than after.

Buying from Kolorob

Sourced through authorised retailers in Bangladesh with an official warranty — the term is in the specification above and our warranty policy explains how a claim works.