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The best portable chargers will power your electronics while you’re on the road. They can charge a variety of devices including phones, tablets, e-readers and laptops. Since you’ll inevitably leave home with low battery life, you need a reliable portable charger to keep your electronics running. Not having one can be very inconvenient.
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We’ve tested the batteries (pun intended) of some of the best and most highly rated portable chargers on the market To that end, we have distanced ourselves from both big brands and popular competitors. Our tests include seeing how fast each power bank charges devices and how many full phone chargers are stored. Although these particular portable chargers regularly appear on bestseller lists, they differ in several important ways.
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These best portable chargers are ranked by our must-buys, including the best portable chargers, our favorite compact chargers, and the best portable chargers for USB-C.
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A glaring setback for the top slot is the absence of the anchor (common standard-bearer) INIU’s 10000 mAh charger. This brick is one of the best portable chargers. Not only is its charging time and speed top of the charts, it also gets 2 USB-A output ports to the Anker PowerCore Slim 10000’s single USB-A charging port. We give the INIU the nod overall, because that second port can be the difference between powering a secondary device while charging your phone (or helping a friend in need of them).
For a brand we’re not as familiar with, this INIU charger clocked in at 15 minutes and 1 hour charging time (22%, 78%) within 1-2 percentage points of the Powercore Slims. Method once it couldn’t beat Anker to fill the whole phone, it was 2 hours, four minutes behind Anker. Both chargers hold about 2.2-2.25 iPhone 12s full, so it’s practically a tie. INIU has a longer warranty: its 3-year plan is double Anchor’s 18-month window.
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This charger has been reviewed by over 9,000 customers on Amazon and is rated 4.7 out of 5 stars. One reviewer who gave it 5 stars said:
“I love this portable charger! I don’t think it’s a good idea because usually your portable chargers die on the first charge. I’ve charged my phone 4 times and never had to charge it! I’ve had it for weeks including leaving it in my bag. Need it again. It does not disappoint! I love it!”
Our No. 2 pick (and still one of the best portable chargers) is the Anker PowerCore Slim 10000, which is slightly heavier than the INIU 10000 pack (7.3 ounces to 6.9 ounces). But if the second USB had an output port, it would have taken up the top slot. This is because its charging times were very close to the INIU Brick (21% in 15 minutes, 76% in an hour) and the overall time to fill the iPhone 12 was 4 minutes less at 1 hour 56 minutes.
But since it’s so close to the INIU, it should be kept as the #2 ranked portable charger. These bricks are very close, practically within the margin of error in testing. If you want to charge one device at a time and the sale price makes the Slim 10000 much cheaper than the INIU, go for it.
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This product has been reviewed by nearly 50,000 customers on Amazon and is rated 4.6 out of 5 stars. A reviewer who rated it 5 stars said:
“I love the solid and sleek construction. Fits easily in my pocket. Most importantly it works! Fast charging, enough power to charge my phone multiple times over several days, and tolerates me dropping it and pulling the stick awkwardly and accidentally.”
Not everyone needs a full brick that can fully charge their phone. Sometimes you want a little cylinder of juice to ease your mind. And (again) the numbers are close between the Poweradd Slim 2 and the competing Anker 5000 mAh stick. Poweradd won in the 1-hour charging (67% to 62%) and lost in the 15-minute window (16% to 19%).
In terms of internal efficiency, the Poweradd couldn’t really beat the Anker, but was in the 97% to 105% margin of striking distance. This difference is hardly worth mentioning. So, how did the PowerAdd Stick make it onto our list of best portable chargers? It’s often the cheapest on this list, usually around $10.99 (which is more than half of almost all similar chargers). And at 4.4 ounces, it’s lighter than the 4.7-ounce Anker Powercore 5000.
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The updated model of the Poweradd Slim 2 has now been reviewed over 500 times and is rated 4.4 out of 5 on Amazon. “It’s noticeably bigger, but has 4x the charge capacity of regular small cylinders. It will recharge a Kindle and a smartphone. No complaints,” said one customer who rated it 5 out of 5 stars.
USB-C is no longer the port of the future, it’s the port of today. While the INIU’s 20-watt brick is a bit heavy (the second heaviest on this list), its dual-function USB-C port clearly makes it one of the best portable chargers for those who charge with a reverse port. That way, you can charge it and charge other devices with the same USB-C cable, and you’ve got two USB-A ports for recharging other devices.
On top of that, it brought our dead iPhone 12 up to 81% of its charge, with excellent performance in a 1-hour charging window. And its 1-hour and 57-minute time to bring that iPhone to a full charge is second best of the pack, just one minute behind the Powercore Slim 10000. 4.78 iPhone 12 with refill, more than most of these chargers.
This product has been reviewed by nearly 4,500 customers on Amazon and is rated 4.6 out of 5 stars. One reviewer who rated it 5 stars said: “I used it to charge my phone and GoPro for 5 days on vacation and the battery had 44% of its life!”
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As is the 10,000 mAh battery — it’s small enough to be mistaken for a 5,000 mAh charger. But it packs two full iPhone 12 charges into its shell, a surprisingly long-lasting power supply, and one of the best portable chargers overall.
Don’t worry so much. Its 15-minute and 1-hour charging scores (20% and 71%) are on the right side of the score range. The only thing that’s a bit disappointing is that it only has one USB-A out port, but that’s understandable given the small size. That portability is one of its biggest strengths, however, and your whole crew won’t expect you to. They can help keep their phone charged if you don’t carry a tank of portable chargers.
This product has been reviewed by nearly 200 customers on Amazon and is rated 4.4 out of 5 stars. “This is a great little power bank and a great size for travel,” said one reviewer who rated it 5 stars.
Anker’s 20,000 mAh brick weighs a few ounces less than comparable bricks, but its charging scores consistently lag 3 to 4% behind. Another success is its USB-C input for fast charging, but since it only has one USB-A output, you’re going to be doing less refueling than you’d like. It has fewer USB-A outputs than competitors.
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However, a person may find this to be the perfect charger for their needs. Anyone who primarily wants to charge their own phone and wants a high-capacity pack should pay less for fuel. All you need is a bag big enough to hold it, and you’ll have juice day after day.
This product has been reviewed by over 50,000 customers on Amazon and is rated 4.8 out of 5 stars. “The Anchor product is amazing and I highly recommend it,” said one reviewer who rated it 5 stars
The Anker PowerCore 5000 lags behind the top-rated 5,000 mAh charger on our list (the Powerdate Slim 2). The iPhone 12 only refueled at 62% in the first hour of charging, the second lowest score on the list.
The best part about the PowerCore 5000 is that it reaches 19% after 15
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