A power bank is essential kit during dumsor, but labels can mislead.
Real capacity
Some energy is lost converting battery power to USB, so you get less than the label. Fakes can be far lower than claimed.
| Label | Typical use |
|---|---|
| 10,000 mAh | About one to two phone charges |
| 20,000 mAh | Several phone charges, tablets |
| 26,800 mAh+ with USB-C PD | Some laptops |
Fast charging
Match the standard your phone uses: USB-C Power Delivery (PD) for iPhones and many Androids, Quick Charge or PPS for others.
Spotting fakes
- Suspiciously light weight for the capacity.
- Huge capacity at a tiny price.
- Poor printing and no certification marks.
- Buy from a trusted seller.
Pair it with a good charger
A certified fast charger and quality cable protect your phone's battery.
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Published October 10, 2026 · 1 min read