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Best Overall: MAXOAK External Battery Power Bank for Laptop & Notebook at Amazon
"The MAXOAK External Battery is a versatile power beast."
Runner up, Best Overall: Jackery 20,800 mAh Portable Charger at Amazon
"The brick-looking, tower aesthetic is pretty refreshing on this device."
Best for Laptops: ChargeTech Portable AC Battery Pack at chargetech.com
"The ChargeTech Portable AC Battery Pack has become a popular item that anyone can buy on Amazon."
Best Mobile: Anker PowerCore+ at Amazon
"The PowerCore+ is a sizeable charger for any tech, but the fact that it offers USB type C Power Delivery means it’s perfect for charging MacBooks and other USB-C devices."
Best for Travel: RAVPower USB-C Power Bank at Amazon
"Many of RAVPower’s options center on mobile devices and tablets, so you’ll have to choose a USB-C power delivery option like this one if you’re looking to charge up a laptop."
Best for AC power: Mophie Powerstation AC at Amazon
"For charging everything from a smartphone to a 15-inch laptop, the Mophie Powerstation AC is a must-have."
Most Versatile: Best Omnicharge Omni 20 USB-C+ at omnicharge.co
"This power bank is like the swiss army knife of adapters and chargers."
Best for PCs: POWERADD Pilot Pro2 at Amazon
"The POWERADD Pilot Pro2 is a portable charger that is very clearly focused on the laptop market."
If you're on the go for travel or work, you don't want to worry about your laptop running out of juice. Fortunately, for areas where plug points are scarce, you have plenty of options for laptop battery chargers that can top you up on the go. We've researched and reviewed the best ones, evaluating them based on size and weight, ports, charging speed, and capacity. If you don't need quite so much juice, you should check out our best portable chargers.
Includes a ton of adapters
Slow and underpowered ports
The MAXOAK External Battery is a versatile power beast. First, it features six charging ports. One is a 20-volt/3-amp port for laptops, one is 12-volt/2.5-amp port for digital cameras, two are 5-volt/2.1-amp USB ports and two 5 volt/1 amp USB ports. Second, it has 50,000 mAh of battery life, meaning you could recharge your laptop and phones many times before having to recharge the external battery power bank.
Our tester also liked that it measures just 8.1 x 5.3 x 1.3 inches and weighs 2.77 pounds, so it could easily fit into your camping bag and it won’t be that much heavier. Finally, it includes 14 types of laptop connectors, so it covers most models but not Apple laptops. If you don’t have an Apple laptop or a laptop that uses USB Type C, you’ll likely be able to plug it in, but be sure to check if your laptop is supported before purchasing.
"At 50000mAh/185Wh, the MaxOak power bank offers one of the highest capacities out there for a device of its size." — Gannon Burgett, Product Tester
QuickCharge USB port
Not completely silent (due to fan)
The Jackery portable charger has a slightly different look than most of the slim, rectangular chargers you’ll find on this list. But the brick-looking, tower aesthetic is pretty refreshing on this device. Our reviewer liked the way the design minimized weight, putting the charger at just 1.5 pounds, which the company promises will be ideal for camping and on-the-go outdoor activities. The 85W A/C output is designed for all the latest laptops, including 12-inch MacBooks, the new MacBook Pros, Dell & HP laptops, the Microsoft Surface and more.
On the flipside, there are a few varieties of USB outputs from USB-C to the new USB 3 for the fastest charging at 5V/2.4 amps. The device promises 6 to 10 full charges for iPhones, 6 to 10 full charges for Samsung phones, 8 to 10 cycles for GoPros and 1 to 3 charges for tablets. There’s built-in protection for temperature overheating, unexpected surges and overcharges, so you won’t mess up any of the devices you’re trying to juice up. The company has even taken steps to make sure the device meets TSA regulations in case you want to bring it in your carry-on.
"The Jackery PowerBar lives up to its estimated charge amounts and times; we didn't see a single discrepancy in our testing." — Gannon Burgett, Product Tester
Courtesy of Chargetech
Two 2.4A USB ports
TSA approved for checked luggage
Requires additional power adapter
ChargeTech Enterprises is a fascinating small company that got its start on Indiegogo, raising about $450,000 to make “the best portable AC power supply.” Since that time, the ChargeTech Portable AC Battery Pack has become a popular item that anyone can buy on Amazon. This unit measures 7.5 x 5.2 x 1 inches and weighs 1.56 pounds.
It offers 27,000 mAh of battery and can charge electronic items that are up to 85 watts, including laptops, digital cameras, curling irons and more. One thing that impressed our reviewer was the fact it has an AC outlet, it also has two USB ports that charge at 2.4 amps, so you can easily charge your phone or tablet too. On the top of the unit, you’ll find four blue LED lights that tell you how much battery the device has left. Keep in mind that with this battery only being able to charge electronics up to 85 watts, you’ll want to closely check the settings on what you are attempting to charge before charging.
"If capacity is your priority in a charger that also has an integrated AC plugin, the ChargeTech 27,000 will get the job done." — Gannon Burgett, Product Tester
No AC plugin
One USB Type-C port
Between the Bluetooth speakers and portable charging options, Anker has a lot to offer the space of mobile tech. The PowerCore+ is a sizeable charger for any tech, but the fact that it offers USB type C Power Delivery means it’s perfect for charging MacBooks and other USB-C devices. It contains both USB-C ports and USB-A ports, the former offering 30W output and the latter putting out 5V and 3A of power. This compatibility will let you charge anything from iPhones to Android devices, all the way to tablets and the aforementioned laptops. The battery sports 26,800 mAh of charge, which the manufacturer promises is enough power to recharge an iPhone X as many as six times. It will charge a full laptop far less, but that’s to be expected. The bundle also comes with a 30W USB-C wall charger with Power Delivery — a nice bonus that will also work for laptops and other high power devices like pro-level tablets and the Nintendo Switch.
"From zero percent battery life, the PowerCore+ 26800 charged to 100 percent in four hours flat, both in our initial test and our eight additional battery cycles, with only ten or fifteen-minute variances." — Gannon Burgett, Product Tester
Large capacity, while still being TSA approved
Many of RAVPower’s options center on mobile devices and tablets, so you’ll have to choose a USB-C power delivery option like this one if you’re looking to charge up a laptop. That Power Delivery tech amounts to 30W of continuous power, so look for that when going for a portable laptop charger (note that it might be referred to as “PD” on the product description). It’s a 26,800 mAh battery pack that will recharge itself in four to five hours and hold enough juice to charge up a MacBook and an iPhone 10 times, an Android around six times, and more (though it’s important to note that these estimates are only just that: estimates). The LED indicator on the outside is clearly visible and readable to determine the battery level. It also offers a 2.4A USB charger for mobile devices, and it’s housed in a wear-resistant shell that looks and feels good.
30W output over USB-C
Single USB-C port
Fan gets loud when using AC power
For charging everything from a smartphone to a 15-inch laptop, the Mophie Powerstation AC is a must-have. The 100W output is best-in-class with the option to plug in devices through AC, USB-A and USB-C ports. At 2.4A, this power bank can safely handle just about anything you want to charge. It even has USB-C 30W input for fast-charging certain compatible devices — it’s one of the few chargers currently capable of fast-charging the iPhone X or iPhone 8 smartphones.
The 22,000mAh internal rechargeable battery can provide up to 15 hours of dedicated charging for a laptop. LED lights indicate battery levels and charging status. And with the Priority+ charging feature, you can plug in a device and then plug the Powerstation into the wall overnight, and both will be charged by morning. All this capability is built inside a 7.5 x 4.5 x 1.1-inch and 1.7-pound frame. The exterior is wrapped in premium fabric so your devices won’t get scratched if they’re packed together.
Plenty of ports
No case or accessories
The first thing you notice about the Omni 20 is how different it looks from an average portable charger. From the unique trapezoidal corners to the super-bright OLED screen that displays (probably) way more information than you’ll ever need to know, the visual features on this charger are truly eye-catching. The other standout aspect on the Omni is its versatility, this power bank is like the swiss army knife of adapters and chargers.
Along the perimeter there are two 60W USB-C ports (ideal for charging up power hogs like a laptop or a Nintendo Switch), two 45W USB-C ports for less power draw, two full-sized USB-A ports that are QC 3.0 compatible, a full-on wall socket, and a DC in/out port. This spread of functionality is pretty compelling, but there are two additional features that Omnicharge has thrown in. First, there’s the ability to use the ports as a USB 2.0 file transfer hub, doing away with the need to throw a bunch of USB-C dongles in your bag on top of your charger. And arguably the coolest feature is the ability to use the flat side of the brick as a 10W wireless charging pad. The whole unit has a 70h capacity, and that full charge can be achieved in as little as 3 hours using the 45W USB-C input. All of this functionality does come at a cost as this unit will run you around $200, more than double what you’d expect to pay for more limited, similar-capacity charger. But if the best is what you want, the Omni USB-C+ is a definite contender.
Plenty of included adapters
Flat and professional-looking
Somewhat cheap accessories
Wide and bulky
The POWERADD Pilot Pro2 is a portable charger that is very clearly focused on the laptop market. This charger ships with ten different adapters that allow for native connection to notebooks from Sony, Lenovo, Asus, Samsung, Dell, HP, and more. The outputs are a bit more limited than you might expect from a high-capacity power brick, as there are only two USB-A ports that max out at 5V/2.5A.
This should be plenty for phones and tablets, and POWERADD does state that you can charge an iPhone up to 8 times and a larger screen phone like a Galaxy Note up to 6 times. However, it’s the max 20V barrel-style port that you’ll need to use to charge a laptop. As such, you don’t get any USB-C support right out of the box, though an adapter should allow for this expansion. The charger sports a bright LCD screen to monitor the remaining charge, a comparatively moderate capacity of 23000mAh, and a bright silver aluminum build.
While the POWERADD does look good at less than an inch thick, it’s a little bulky on the overhead footprint, measuring almost seven and a half inches tall and almost five inches wide. If you want the latest and greatest, with USB-C charging out of the box, then you should look elsewhere. But if charging a variety of different PCs with different style connectors is your priority, this could be a great bet.
If running low on power is a concern, the best portable laptop battery charger to get is the MaxOak external battery. It's a beast with six charging ports, plenty of output, and 50,000mAh of battery life to keep you topped up for days. However, if you own an Apple laptop, you may want to go with the Jackery portable charger. It has a rugged design, supports fast charging, and unlike the MaxOak it has USB-C so it can work with MacBooks.
Gannon Burgett has been writing for Lifewire since 2018. Specialiing in computers and peripherals, he's previously been published on Gizmodo, Digital Trends, Yahoo News, and other sites. He tested several of the batteries on this list, using them with his personal MacBook, iPad, iPhone, and other devices. He liked the MaxOak for its huge capacity and the Jackery for its rugged design and ability to charge MacBooks.
Capacity - When picking a portable laptop battery charger, one of your primary considerations should be its capacity to store energy (measured in mAh) — this denotes the device’s battery life before it needs to be recharged. Be sure that the battery has equal or more capacity than the one already inside your machine so that you can expect a full charge.
Output - Some portable chargers can be a bit slow when outputting a charge, so be sure that the battery you’re purchasing has an output equal to or higher than the wattage of your typical laptop charger.
Connectors - Obviously, it’s critical to make sure that you can plug your laptop into your new portable charger. Check to see the type of inputs the charger supports — whether that’s a standard wall outlet plug, a USB-C port, or other universal solutions.