Anker PowerPort III 20W Review

Overview

The Anker PowerPort III 20W (model A2632) is a single-port USB-C wall charger with a foldable EU plug, built around the 20W ceiling of Apple’s fast-charging iPhones. It suits hikers who resupply in towns and hostels and need one small brick to top up a phone, watch and earbuds overnight. The trade-off is built into the name: 20W is plenty for a phone and far too little for anything bigger.

Key Specs

Spec	Detail
Model	A2632
Weight	54 g (Anker EU listing)
Dimensions	3 × 4 × 3.9 cm (Anker EU listing)
Ports	1× USB-C
Max output	20W
Output profiles	5V/3A (15W), 9V/2.22A (20W)
Input	100–240V~, 0.6A, 50–60Hz
Charging technology	PowerIQ 3.0 (USB PD)
Plug	EU, foldable prongs
Average active efficiency	85.13%
No-load power draw	0.04 W
Warranty	18 months

Performance

The headline claim is that an iPhone 13-series handset goes from empty to 50% in 25 minutes. That is roughly three times faster than the 5W cube Apple used to ship, and it matches what the charger’s 9V/2.22A profile can deliver. Anker also rates it for Galaxy S20-class flagships, with a full charge in under 1.5 hours. For a trail routine, that means a phone can go from near-dead to comfortably usable during a hostel dinner or a coffee stop in a trailhead town.

The limit is the power profile. The charger offers only 5V and 9V, and it tops out at 20W. Phones that can accept 25W, 45W or more will charge at 20W at best. Laptops will charge slowly, if at all, under load. TechRadar’s review of the non-folding Nano version of this charger called it cheap and tiny but held back for newer handsets that accept more than 20W. The same ceiling applies here. The Nintendo Switch will charge from it, but it will not power the console in TV mode.

Size is where the A2632 earns its spot. Anker lists it at 3 × 4 × 3.9 cm and 54 g, and the prongs fold flat. That means it slips into a pocket on a resupply stop without snagging on the lining. Foldable prongs matter more than they sound: TechRadar marked down the fixed-prong Nano variant for leaving the pins exposed at all times. Folding the plug avoids that, and it keeps the brick from gouging a stuff sack.

Efficiency figures from the manual are respectable for a budget brick: 85.13% average active efficiency and 0.04 W of draw with nothing plugged in. Owners of Anker’s 20W cubes mostly describe them as small and trouble-free. Some note the brick runs a little warm, which is normal for something this compact.

The box matters too. Anker’s U.S. A2631 listing includes a USB cable, but retailer listings for the A2632 list only the charger and a manual. Plan on supplying a USB-C cable. Anker is also not shy about the age of the platform. This is a 2021-era design, built when 20W was the top speed for iPhones, and it shows next to newer GaN chargers that fit 30W or more into the same footprint.

Pros & Cons

Pros

• 54 g with folding prongs, which makes it easy to pack
• Reaches 50% on an iPhone 13-series in about 25 minutes
• Real USB PD, so it works with Android phones, iPads, earbuds and watches
• Low standby draw and an 18-month warranty
• Cheap enough to carry as a spare

Cons

• Single port, so two-device charging means two chargers or waiting
• 5V and 9V only, so it is no good for laptops
• Caps newer phones that can take more than 20W
• Retail listings show no cable in the box

Who Should Buy This

This charger fits a thru-hiker or bikepacker with one phone, a watch and perhaps earbuds and a headlamp. It also fits anyone who wants a light, cheap brick for town stops and hostels across Europe. It is a poor pick for hikers who carry a tablet or laptop, or who want to charge two devices at once. They should look at a multi-port GaN charger with 30W or more. People with a recent phone that charges faster than 20W should also look elsewhere.

Verdict

The Anker PowerPort III 20W does one job well. It charges a modern phone quickly from a brick that weighs about as much as a few AA cells. It is limited by single-port design and a 20W ceiling, but at its price and weight, it makes a sensible backup or a primary charger for a phone-only kit.