- How many times can it charge a phone?
- With 20,000mAh, expect roughly four to five full charges for a typical phone, less for large phones or heavy use.
- Does it support fast charging?
- It tops out at 15W, so it does not fast-charge modern phones that support higher USB-C Power Delivery speeds. It charges steadily rather than quickly.
- How long does it take to recharge?
- Recharging the full 20,000mAh takes several hours, so plan to leave it plugged in overnight.
- What can I charge with it?
- Phones, earbuds, smartwatches and other small USB devices. It is not suited to laptops, which need higher output.
- Is it allowed on a plane?
- Yes. At 20,000mAh it is under the common 100Wh carry-on limit, but keep it in your cabin bag, not checked luggage.
- What is in the box?
- The power bank and a charging cable. A wall adapter for recharging it is not included.
- Where is the Anker 20000mah 15w power bank cheapest?
- At Best Buy, for $49.99, as of our latest check.