Anker 511 Charger (Nano) 20W, A2633
A tiny, fast iPhone charger; Samsung owners and anyone needing two ports should look elsewhere.
The short version
- iPhone owners who already have a USB-C to Lightning or USB-C cable
- Travelers who want the smallest possible phone charger
- Anyone replacing an old 5W USB-A cube
- You own a recent Samsung Galaxy and want its full fast charging speed
- You need to charge two devices at once or charge a laptop
- You want folding prongs for pocket carry
What owners like
- Very small and light for a 20W charger, easy to leave in a bag
- Charges iPhones at close to the full 20W; Android Authority measured 18.7W on an iPhone 13
- Handles older phones through legacy charging standards
Common complaints
- Fixed prongs can snag in a pocket or bag
- No PPS, so a Galaxy S21 drew about 14.3W in Android Authority's test instead of its 25W top speed
- Only one port and no cable included
- Not enough power for laptops or fast tablet charging
Based on Anker's support product page and its Nano lineup explainer, reviews from Android Authority and Packstack, and the Amazon product listing.
Research scores
Scored from the maker's specs and what owners report. Drew's own notes and photos will refine these.
Ownership
Drew's hands-on notes for this product are on the way. Long-term updates will be added to this timeline.
What it does
A tiny single-port 20W USB-C wall charger, sold earlier as the PowerPort III Nano, built mainly to fast charge iPhones; no cable in the box.
- 20W USB-C Power Delivery fast charging for iPhone 8 and later
- Also charges iPads, AirPods and many Android phones over USB-C
- Works on 100 to 240V, so it can travel abroad with a plug adapter
- Small cube shape that Packstack likens to a large sugar cube
- Came in black, white, lavender grey and mint green
A good pick for iPhone owners who want a fast charger that barely sticks out of the wall or a travel bag. The trade-offs are fixed prongs, one port, no cable, and no PPS support, so recent Samsung Galaxy phones charge well below their top speed. Anker's newer Nano Pro (A2637) keeps the same output and adds active temperature monitoring.
How it compares
Specs
- Model
- A2633
- Output
- 20W max, 5V 3A or 9V 2.22A
- Input
- 100 to 240V, 0.6A, 50 to 60Hz
- Port
- One USB-C
- Charging standards
- USB Power Delivery 3.0, Anker PowerIQ 3.0, Quick Charge 3.0
- Prongs
- Fixed, not foldable
- Weight
- About 30 g, per Packstack
- In the box
- Charger only, cable sold separately
Worth knowing
- Anker notes that USB-C devices and iPhones need the right cable, sold separately.
- Anker says charging is faster from 0 to 50 percent than from 50 to 100 percent.
Questions
Does the Anker 511 Nano come with a cable?
No. The charger is sold alone, so you need your own USB-C to Lightning or USB-C to USB-C cable.
Will the Anker Nano 20W fast charge an iPhone?
Yes. It supports USB Power Delivery and Anker lists iPhone 8 and later as compatible. Android Authority measured about 18.7W on an iPhone 13.
Is the Anker 511 Nano good for Samsung phones?
It charges them, but it lacks PPS, so phones like the Galaxy S21 run at about 14W rather than Samsung's 25W super fast charging.
What is the difference between the Anker Nano and Nano Pro?
Both are 20W. The Nano Pro (A2637) adds Anker's ActiveShield system, which monitors temperature and adjusts output.
Do the prongs fold?
No. Anker lists the A2633 as not foldable.
Sources
- Amazon: Anker 511 Charger (Nano) 20W
- Anker Support: Anker 511 Charger (Nano)
- Anker Support: Introduction of the Anker Nano 511 20W, Nano Pro and Nano 3 chargers
- Android Authority: Anker PowerPort III Nano review
- Packstack: Anker PowerPort III Nano (20W) review
- Anker: Anker Nano Charger (20W)
Researched 2026-10-02. We bought this product; our page is built from the maker's details and what owners report across reviews and forums. We never copy Amazon customer reviews.
