The perfect USB cellphone charger

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Though each smartphone or pill comes with a USB charger, it is shocking what number of of these inventory chargers cannot juice up the gadget as quick as doable. For instance, when you’ve got an iPhone and a USB-C–to–Lightning cable, you’ll be able to increase the battery as much as 3 times sooner than with the charger and cable that got here free with the cellphone by utilizing the Anker PowerPort PD 2. With the ability to cost a second gadget on the similar time is particularly useful whilst you’re touring. We additionally like this energy adapter’s small dimension and Anker’s 18-month guarantee.

Port one: 18 W USB-C

Port two: 12 W USB-A

Dimensions: 2.5 by 2.Four by 1.1 inches

Chargers with a number of ports are a greater worth, however in case you merely need the smallest energy brick obtainable that’ll cost your cellphone on the quickest speeds, we advocate the single-port Anker PowerPort III Nano. The Nano is similar dimension as Apple’s ubiquitous 5-watt charger (the one which Apple has included within the field with each iPhone besides the 11 Professional and 11 Professional Max), but it provides 18 watts over USB-C. Whether or not you’ve an iPhone, a Samsung Galaxy mannequin, a Google Pixel handset, or another Android cellphone with quick charging, that is sufficient to cost most telephones about midway in simply 30 minutes.

Port one: 18 W USB-C

Dimensions: 1.2 by 1.1 by 1.1 inches

The Scosche PowerVolt Energy Supply Twin USB-C Quick Charger is what you must get if you wish to benefit from quick USB-C with a number of units. Each of its USB-C ports assist full 18-watt charging on the similar time, which means you’ll be able to cost two telephones at high velocity—an iPhone’s battery will go from zero to round 50 p.c charged in a half hour, whereas in the identical period of time it might be at lower than 20 p.c on the charger it comes with. This twin–USB-C setup is fairly uncommon nonetheless, and Scosche’s charger is the one mannequin to hold USB Implementers Discussion board (USB-IF) certification for security and adherence to requirements, the principle factor separating it from in any other case similar competitors.

Port one: 18 W USB-C

Port two: 18 W USB-C

Dimensions: 2.6 by 2.5 by 1.1 inches

The Anker PowerPort II would not assist USB-C, which suggests it could possibly’t supply the utmost charging velocity on the most recent telephones. Nevertheless it’s nonetheless a sensible choice in case you simply desire a small and cheap USB-A charger—every port continues to be highly effective sufficient to cost units at 12 watts on the similar time.

Port one: 12 W USB-A

Port two: 12 W USB-A

Dimensions: 2.2 by 2.1 by 1.2 inches

The Anker PowerPort Four is the mannequin to decide on in case you carry plenty of gear—say, a cellphone, a smartwatch, an influence financial institution, and Bluetooth headphones—or in case you’re touring with companions. Every of its 4 ports helps 12-watt energy draw, as quick a cost as you may get from normal USB-A. No different dependable four-port charger packs that sort of energy into such a diminutive dimension and at such a low value.

Port one: 12 W USB-A

Port two: 12 W USB-A

Port three: 12 W USB-A

Port 4: 12 W USB-A

Dimensions: 2.6 by 2.6 by 1.1 inches

Why you must belief us

I have been reviewing cellular equipment since 2012 and masking them for Wirecutter since 2015. I am additionally the creator of Wirecutter’s guides to Qi wi-fi chargers and automobile chargers, for which I’ve seen and examined just about each obtainable charging variation.

To make our picks, along with years of expertise we relied on professional-level instruments, together with the Whole Section USB Energy Supply Analyzer and its Information Heart Software program. These instruments allowed us to get extra granular, exact knowledge than we’d have in any other case in order that we might be assured in our picks’ efficiency.

Who that is for

In case your cellphone’s or pill’s authentic USB charger is damaged or misplaced, you are clearly in want of a brand new charger. However even in case you nonetheless have the unique chargers for all of your units, you would possibly wish to think about one thing that may cost your units from a wall outlet extra rapidly or cost a number of units on the similar time.

Most individuals have multiple gadget that prices by way of USB: tablets, smartphones, exterior battery packs, e-readers, transportable audio system, Bluetooth headphones and headsets, health trackers—the record goes on. Chances are high good that you will often must cost two (or extra) of these units on the similar time. Good multiport chargers do not price way more—or typically any extra—than single-port chargers, so we predict it is smart to get at the least two ports if you’re shopping for a brand new charger.

Multiport chargers are additionally nice for journey. As a substitute of getting to pack a gaggle of chargers for the household—or if you’re touring alone, on your cellphone, pill, headset, and Bluetooth speaker—you’ll be able to convey one charger that handles every part. (In fact, you may should pack the suitable Lightning or Micro-USB cables too.)

Battery proportion when charging an iPhone XS


30 min.

60 min.

Apple 5 W iPhone charger



Apple 12 W iPad charger (equal to quickest USB-A)



Aukey 18 W USB-C charger



A USB-C charger can cost an iPhone greater than twice as quick as the facility brick that comes with the cellphone, and noticeably sooner than an iPad’s inventory charger.

How we picked and examined

Selecting a brand new cellphone charger might be daunting: You could find lots of of manufacturers, many promoting dozens of various configurations. Confronted with this difficulty in starting our newest spherical of analysis, we determined to stay to corporations with established observe information of nice merchandise and repair. You will get a high quality charger for a low value—so there is no good purpose to go together with an unproven model. To that finish, we pored by the USB-charger catalogs of Amazon, Anker, Apple, Aukey, Google, iClever, Nekteck, RAVPower, Satechi, Scosche, and ZMI, and regarded almost 100 distinct charger fashions.

From there, we whittled the record down based mostly on various standards:

  • A desire for 2 or extra USB ports: We loosened this restriction solely when notably small, inexpensive, and correctly performing choices began to grow to be obtainable. For the cash, nevertheless, we nonetheless assume most individuals ought to select a charger with a number of ports. The fee and area financial savings of a single-port charger aren’t important sufficient to justify such chargers’ restricted output normally. It is nearly all the time a greater worth to decide on a charger with two or extra ports, whether or not they be USB-A, USB-C, or a mixture of each.
  • The quickest doable output:
    • USB-A ports with 12-watt or QuickCharge output: USB-A charging maxes out at 12 watts (5 volts, 2.Four amps) for Apple units and plenty of Android telephones, although among the latter can cost sooner with Qualcomm’s QuickCharge normal. Contemplating the widely low costs of those chargers, you will not discover important financial savings by selecting a charger slower than 12 watts.
    • USB-C ports with 18- to 45-watt output: USB-C ports permit many telephones to cost sooner—with the proper cables—drawing energy at both 15 watts or 18 watts (USB Energy Supply, or USB PD). Though having greater output would not damage since your gadget will draw solely as a lot energy because it’s rated for, paying extra for energy you will not use would not make a lot sense, so there is no purpose to purchase something over 45 watts particularly on your cellphone. These extra highly effective and costlier chargers are higher choices if it’s good to cost a pill or a laptop computer.
  • Energy-to-dollar worth: Merely put, we thought-about how good of a worth every charger was for the overall energy it may put out throughout its ports. We used this as a comparative determine, which allowed us to rule out fashions that had been unnecessarily costly.
  • Measurement: Though absolute dimension just isn’t the highest figuring out issue, we naturally desire small chargers to bigger ones. We predict accepting a little bit extra quantity is okay if meaning extra energy or extra ports, however all different issues being equal, smaller is best.

Based mostly on these standards, we examined 16 fashions, together with some with simply USB-A ports, some with simply USB-C ports, and a few with each. To search out the highest choices in every class, we put the finalists by various assessments.

  • USB-A ports: We examined the utmost energy draw from every port by plugging in a variable energy load and an ammeter. This setup allowed us to finely management the facility stream and decide whether or not it matched the marketed price. We began with the facility load set to zero amps after which turned it up till it matched the promised amperage, guaranteeing the voltage stayed inside Four.75 volts to five.25 volts. Then we repeated that check on every charger’s different ports, confirming that each port behaved as anticipated and that, mixed, they matched the proper output.
  • USB-C ports: USB-C makes use of digital communication between units to confirm charging speeds in a means that USB-A would not; with the proper instruments, you’ll be able to interpret precisely what is going on on within the communication between the charger and the gadget you’ve got plugged in. We used the Whole Section USB Energy Supply Analyzer and its Information Heart Software program to measure and file this knowledge, together with the marketed energy profiles, the regular state output, and whether or not any errors occurred in charging.
  • Mixed energy output: After testing every particular person port, we examined the mixed output when every was pushed to the utmost. The perfect chargers assist their quickest charges on every port on the similar time, with out added units slowing something down.

Our decide: Anker PowerPort PD 2

USB phone charger

Photograph: Michael Murtaugh

The Anker PowerPort PD 2 is one of the best charger for getting most charging velocity in your cellphone it doesn’t matter what cable you employ. It supplies each a 12-watt USB-A port and an 18-watt USB-C port, so you’ll be able to cost your cellphone two to a few instances sooner than with the charger that got here within the field along with your cellphone. And with two ports, the PowerPort PD 2 provides good charging speeds for 2 units on the similar time; most different fashions this small and cheap cannot assist quick charging from each ports without delay. The ability adapter is small and lightweight, making it ultimate for carrying in a bag. And it comes from Anker, an organization with a historical past of top-performing chargers and a very good guarantee.

Though USB-C is smaller and sooner than USB-A and works with extra sorts of units, it isn’t almost as ubiquitous but and can doubtless take some time to get there. The PowerPort PD 2 cleverly combines the advantages of a USB-C charger with the comfort of USB-A, which suggests you’ll be able to cost most telephones launched since 2017 or so at full velocity when you’ve got a USB-C cable (or for iPhones, a USB-C–to–Lightning cable) whereas additionally powering a second from the USB-A port at a decent price utilizing the older cables you have already got.

USB phone charger

Folding prongs on the PowerPort PD 2 make it simpler to get the charger out and in of smaller pockets in laptop computer luggage and backpacks. Photograph: Michael Murtaugh

In our testing the PowerPort PD 2 carried out precisely as promised, changing into the smallest USB-A and USB-C combo charger we examined to dwell as much as expectations. You’ll be able to count on an iPhone XS to cost to about 35 p.c in a half hour utilizing the USB-A port and nearer to 50 p.c on the USB-C port. That is quick sufficient to make a noticeable distinction day-after-day, in contrast with the 5-watt charger most iPhones include, which might attain solely 17 p.c in the identical period of time. Charging from USB-C is standardized into completely different energy ranges, and the commonest ones to fast-charge telephones are 15 W (5 V, Three A) and 18 W (9 V, 2 A). Our assessments confirmed that the PowerPort PD 2 can supply both a type of, and we noticed it charging a depleted iPhone XS consistent with these ranges—about eight.9 V, 1.9 A. Our readings discovered no errors. The USB-A port was capable of assist 5 V, 2.Four An influence draw with no difficulty, even when the USB-C port was charging on the full 18-watt price. A comparable charger we in any other case like, the RAVPower USB C Energy Supply Charger (RP-PC108), can do one or the opposite however drops to 15 watts whole when each ports are in use on the similar time, which suggests each units will cost slower.

USB phone charger

The PowerPort PD 2 (left), Apple 18W Charger (heart), and Apple 5W Charger (proper). Photograph: Michael Murtaugh

The ability brick is bigger than what comes along with your cellphone however not big. It is about 2.5 inches sq. and 1.1 inches thick, and it weighs lower than Four ounces. Folding prongs make it handy for journey. It is roughly double the amount of the Apple 12W USB Energy Adapter—despite the fact that it is the identical thickness, it is wider and taller. Which may make it a good match within the smallest pockets of a handbag or gear bag, however as a result of it is greater than twice as highly effective as smaller chargers like Apple’s, we predict the dimensions is a good trade-off.

Anker’s 18-month guarantee is on a par with lots of its opponents’ warranties. At any time when Wirecutter workers has needed to benefit from the safety, they’ve discovered the method to be fast and simple.

Finest small cellphone charger: Anker PowerPort III Nano

USB phone charger

Photograph: Michael Murtaugh

We predict most individuals are greatest served by a charger with two ports because it provides versatility in just about any state of affairs, whether or not you cost round the home or toss it into your bag for commuting or touring. However in case you worth a charger’s dimension above all else, the Anker PowerPort III Nano is a good choice that may fast-charge only one cellphone. It is 40 p.c smaller than the next-smallest quick charger we have discovered, however it’s nonetheless capable of safely ship 18 watts of energy over USB-C.

The PowerPort III Nano’s most noteworthy characteristic is its dimension. Measuring 1.2 inches lengthy (not counting the prongs, which do not fold down), and 1.1 inches extensive and tall, its dimensions are nearly similar to these of the Apple 5-watt charger that has come filled with most iPhones for the previous decade. The Anker charger is lower than half the amount of Apple’s straight comparable 18-watt charger that ships with the iPhone 11 Professional and 11 Professional Max. It is also smaller than the Samsung 25W USB-C Quick Charging Wall Charger, however it ought to cost most Galaxy telephones at about the identical velocity.

USB phone charger

The Anker PowerPort III Nano (heart) provides quick 18 W charging on USB-C however is about the identical dimension as the usual Apple USB-A 5 W charger (proper). Photograph: Michael Murtaugh

In contrast to the multiport chargers we desire, the PowerPort III Nano has solely a single USB-C port. Our assessments with the Whole Section testing confirmed correct 18-watt energy draw and assist for the 15-watt degree as effectively, which makes this charger appropriate with USB-C units that do not use the Energy Supply normal. As with all the opposite chargers we advocate, this implies you must see most telephones cost to about 50 p.c full from empty in half an hour or so.

Improve decide: Scosche PowerVolt Energy Supply Twin USB-C Quick Charger

USB phone charger

Photograph: Michael Murtaugh

The Scosche PowerVolt Energy Supply Twin USB-C Quick Charger is a rarity: an influence brick with two USB-C ports. Throughout our preliminary analysis and testing, it was one in all solely two obtainable and the one mannequin of its variety to be licensed secure by the USB-IF. The Scosche charger delivers the promised 18-watt efficiency from each ports, which means you’ll be able to cost two telephones at full velocity on the similar time or fast-charge your cellphone and one other USB-C accent. It is as small as anything with the identical energy, and it is our selection for anybody who has multiple USB-C gadget.

When plugged into the PowerVolt with a USB-C–to–Lightning cable, an iPhone XS will cost from zero to about 50 p.c in 30 minutes and to 80 p.c in an hour, in contrast with about 17 and 33 p.c over the identical respective time intervals if you use the charger that comes with the cellphone. Each the Scosche and the Aukey PA-Y16—the one different twin USB-C charger obtainable—carried out as anticipated once we ran them by the Whole Section check; they’re additionally the identical dimension and value.

The one factor that units the PowerVolt other than the Aukey, its solely direct competitor with two USB-C ports, is that it has USB-IF certification, which suggests an impartial lab has verified that it meets a set of standards for security and efficiency. Though we did not depend on the existence of USB-IF certification in evaluating each charger on this information, that stamp of approval units the 2 otherwise-equivalent fashions aside.

The PowerVolt is roughly the identical form as, however simply barely bigger than, the Anker PowerPort PD 2; it measures about 2.6 by 2.5 by 1.1 inches, or simply about zero.1 inch longer and wider. Its ports are located in the identical place, stacked horizontally on the face reverse the folding prongs. In contrast to the Anker, it lacks a standing mild, which might be a unfavorable in case you wish to be assured the charger is plugged in or a optimistic in case you’re a lightweight sleeper and you intend to maintain this charger by your mattress.

Scosche’s guarantee is likely one of the greatest we have seen. The PowerVolt is roofed for 3 years, double what Anker provides. After we’ve examined the corporate’s customer support, we have been impressed by the quick response instances.

Finances decide: Anker PowerPort II

USB phone charger

Photograph: Michael Murtaugh

Should you do not care about getting absolutely the quickest charging speeds, or in case you simply need essentially the most inexpensive choice that also delivers full USB-An influence from two ports, we advocate the Anker PowerPort II. It is concerning the dimension of Apple’s single-port 12W charger that has include previous iPads, however it contains two ports that may concurrently cost two units at 12W every.

This implies you get the quickest (non–Fast Cost) charging price that USB-A provides. We confirmed these speeds with our power-load and ammeter setup: An iPhone XS went from zero to 35 p.c charged in a half hour and a little bit over 70 p.c in 60 minutes, in contrast with 50 p.c and 80 p.c charged in the identical respective intervals with a USB-C charger just like the PowerPort PD 2.

Measuring about 2.2 inches sq. and simply over an inch thick, this Anker mannequin is about zero.Three inch wider and taller than a inventory iPad charger however the identical thickness. It is sufficiently small that it could possibly simply slot in a bag and even some pockets.

Finest for charging greater than two units: Anker PowerPort Four

USB phone charger

Photograph: Michael Murtaugh

The Anker PowerPort Four provides 4 USB-A ports in a compact design, making it ultimate for a pair who’s touring (or one one that makes use of a ton of substances). It is what I personally carry when my spouse and I are on the go, charging our iPhones and Apple Watches from a single outlet.

The PowerPort Four is likely one of the quickest multiport chargers we examined throughout all of its ports. Regardless of its marketed 40-watt most output, we measured 12-watt draw from all 4 ports on the similar time, for about 48 W whole. Until you’ve a Fast Cost–succesful gadget, that is as quick as USB-A can cost, and plenty of multiport chargers like this will’t present that a lot energy to each port on the similar time; for instance, the final two ports on the RAVPower 60W 6-Port Desktop Charger with QC (RP-PC029) maxed out at 10 watts when the others had been in use throughout our assessments. Even when the speeds do drop a bit in sensible use, you’ll be able to nonetheless make sure of quick USB-A charging throughout all of the ports.

At simply over an inch thick, the PowerPort Four is similar thickness as all the different Anker chargers we advocate on this information. It is ever so barely wider and taller than the Anker PowerPort PD 2. Fairly than requiring a cable between the wall outlet and the charger’s physique as most multiport chargers do, the Anker PowerPort Four plugs straight into an AC outlet (with out masking the second outlet), so it is much less cumbersome to hold than an adapter that requires a cable.

The competitors


The RAVPower USB C Energy Supply Charger (RP-PC108) is a powerful runner-up to the Anker PowerPort PD 2 in case you worth dimension over energy. It is roughly the identical thickness as our high decide however about half an inch shorter and narrower. The USB-A port helps the identical 12-watt energy draw, and the USB-C port helps 18-watt charging. However here is the rub: In contrast to on the Anker, the ports on this charger do not each assist full-speed charging on the similar time—in case you cost on each ports, the mixed velocity drops by roughly 50 p.c.

The Aukey Amp 36W Energy Supply Wall Charger (PA-Y16) carried out simply in addition to Scosche’s dual-port USB-C charger and has nearly precisely the identical dimensions. However the Scosche has the benefit of USB-IF certification, which means it has been independently verified to carry out as anticipated.

The Nekteck PD 39W USB-C & 12W USB-A Journey Charger is extra highly effective than the fashions we advocate, and it comes with a USB-C–to–USB-C cable. Nevertheless it’s bodily bigger, and the additional energy is superfluous for charging a cellphone.

The RAVPower 30W Three-Port Wall Charger with USB-C (RP-PC060) we obtained for testing did not assist USB PD over its USB-C port, which meant slower charging, particularly when the cellphone’s battery was almost empty. Plus, its whole output was solely 30 watts throughout the three ports, so that you’d get slower speeds in case you had been charging on all of them without delay. RAVPower has up to date this charger’s itemizing to say it now helps 18 W charging, although, so we’ll check the brand new model at a later level.

The RAVPower 60W 5-Port USB Charging Station (RP-PC059) is best suited to a desk than a bag, and its amperage studying within the Information Heart software program was far and wide, in distinction to the sleek ranges we noticed from better-performing chargers.

ESR’s Twin-Port 36W PD Charger has the identical ports and energy output because the Scosche PowerVolt, however it’s not USB-IF licensed. On this case, we predict you must spend a couple of further dollars for the peace of thoughts of USB-IF certification.

Aukey’s Minima 27W arrived in packaging calling it “Minima 30W,” and the we obtained has completely different energy profiles than what’s listed on the corporate’s web site. That strangeness apart, the Minima is bigger and costlier than the Anker PowerPort III Nano, and the additional energy is greater than essential to cost a cellphone.

USB-A solely

The RAVPower 36W Fast Cost Wall Charger (RP-PC006) is bigger than the Anker twin–USB-A chargers we advocate for about the identical value. Its solely benefit is QuickCharge assist, so when you’ve got a appropriate cellphone, you could desire it.

The ZMI PowerPlug Four-Port Charger is shockingly low cost. (At this writing it is promoting for $10, and the corporate informed us the worth would by no means be above $20.) Every port is rated for two.Four amps. Though our assessments confirmed this, a tiny bump above that power-draw degree—at the same time as small as zero.01 amp—precipitated the variable load to reset. The opposite chargers we examined provided extra wiggle room at their most output with out resetting.

We decided that the RAVPower 60W 6-Port Desktop USB Charging Station with iSmart (RP-PC028) and the RAVPower 60W 6-Port Desktop Charger with QC (RP-PC029) had been each too giant for journey and that we would desire a equally priced mannequin with USB-C if we had been utilizing our charger at a desk.

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