Even though smartphones get smarter with every iteration, battery life is still a challenge that manufacturers and consumers alike are trying to tackle. While we all anxiously await a more efficient battery technology that succeeds lithium-ion, portable power banks are currently the best solution to keep your smartphones and tablets charged during travel.
Best Portable Power Banks Reviewed
Portable power banks have become an almost essential part of every person’s electronic arsenal. It’s important to have one that balances portability with ample power, so you can keep your smartphone(s) charged while on the road (or in the air) while not having to carry a dozen cables around as you desperately search for a wall socket.
We’ve handpicked some of the best portable power banks available right now and reviewed them for you. From giants like Anker, RAVPower, and more, you’ll certainly find what you’re looking for.
Our Top Pick
Anker PowerCore Speed
Fast Charging and Large Capacity
The Anker PowerCore Speed is a 20,000mAh power bank with Qualcomm Quick Charge 3.0 technology combined with Anker’s proprietary PowerIQ and VoltageBoost technologies. It offers fast charging and the Anker level high-quality standards, with a focus on efficiency and safety.
The Anker PowerCore Speed is our favorite high-capacity portable power bank out there. We recommend it to all travelers who own multiple mobile devices and spend their time on the road (or in the air) extensively.
- Capacity: 20,000mAh
- Charging Technology: Qualcomm Quick Charge 3.0, PowerIQ
- USB Charging Ports: 2
- Output: 5-8V = 3A; 8-10V = 2.4A; 10-12V = 2A; PowerIQ 5V = 2A
Anker is the leader in mobile power solutions, so it’s no surprise to see their product make it to the top of the list. The PowerCore Speed is a wonderful solution for all travelers looking to keep their smartphones charged for several days even under heavy use and with no immediate access to a wall socket.
Anker’s PowerCore Speed improves open the already popular and highly praised PowerCore line of power banks. The highest capacity versions aren’t the most portable, but they’re slimmer than most other 20,000mAh power banks out there.
Anker has integrated Qualcomm’s Quick Charge technology in the PowerCore Speed to offer fast-charging for most devices that support it. You can reap the benefits if you own a Google Pixel 2/3, or any of the modern Samsung devices. iPhone users will also get plenty of juice from this portable charger, though they’ll be limited to the speeds the lightning port can supply.
As with most power banks, the Anker PowerCore Speed uses a microUSB connection for charging it. Given its high capacity, you can expect to invest a lot of time in charging it – around 6 hours, according to Anker. However, in return, the Anker PowerCore Speed will charge your average 3500mAh smartphone around 6 times.
Anker has also ensured safe operation by implementing temperature sensing technology inside the power bank. If the temperatures reach high, the charger automatically modifies the power output to reduce heat. This is ideal for those who will use the power bank in hot climates, where other lithium battery banks would heat up and cause concern.
Anker is generous enough to include a portable charger with this power bank, in addition to a microUSB cable and a pouch. The PowerCore Speed also comes with an 18-month warranty.
Best USB Type-C Power Bank
ZMI USB PD Backup Battery & Hub
One of the Most Advanced Power Banks
The ZMI USB PD Backup Battery & Hub behaves as both a power bank as well as a USB hub. This power bank uses USB Type-C port for faster charging of devices, as well as fast charging for itself. It doubles as a USB hub for laptops with Thunderbolt 3 ports. You can also charge your laptop with it if your laptop utilizes Thunderbolt 3 charging.
It’s not the slimmest or smallest power bank out there, but it is certainly one of the most versatile and fastest. Rapid speed combined with high capacity and versatility makes it a must-have for any owner of a MacBook or Ultrabook with USB Type-C ports.
- Capacity: 20,000mAh
- Charging Technology: Qualcomm Quick Charge 3.0 support
- USB Charging Ports: 2x USB Type-A, 1x USB Type-C
- Output: USB Type-C 5-20V = 3A; USB Type-A 5V = 2.4A, 9V = 2A, 12V = 1.5A
The ZMI USB PD Backup Battery and Hub is a versatile and powerful power bank with multiple uses. Firstly, it doesn’t limit itself to just charging your smartphones and tablets. The USB Type-C port delivers enough power to charge laptops like the MacBook Pro, Dell XPS 13, and HP Spectre 13x which use Thunderbolt 3 ports for charging.
It has enough capacity to easily charge most 13-inch laptops fully or charge most smartphones at least five times. Furthermore, it is also one of the fastest power banks to charge because of the USB Type-C port, which it also uses as the power input. This makes it an extremely convenient power bank for frequent flyers and individuals who spend most of their days out only to take a short nap in a hotel room.
In addition to its USB Type-C port, the ZMI power bank also features two USB Type-A ports. This power bank also supports Qualcomm Quick Charge 3.0 technology for fast charging most smartphones. It’s not the slimmest portable power bank out there, but it makes up for its bulkiness with its versatility. You shouldn’t expect to keep it in your pocket, but even a slim laptop bag should be able to carry this power bank with ease.
One of the coolest aspects of the ZMI USB PD Backup Battery and Hub is that it doubles as a USB hub. For anyone running a super-slim laptop with no USB Type-A port, the ZMI power bank can behave as a USB hub. Simply connect it to your laptop with a USB Type-C cable, then plug in a USB Type-A peripheral such as a mouse or dongle into the USB Type-A ports and you’re good to go.
Inside the box, you’ll get the power bank itself, a 20-inch USB Type-C to Type-C cable, a 2-in-1 micro-USB and USB-C to USB-A combo cable, and a storage pouch. ZMI offers an 18-month warranty for this device as well.
Best Compact Portable Power Bank
RAVPower Portable Charger 6700mAh
Fast Charging in a Small Form
The RAVPower Portable Charger is a pocket-sized portable power bank that delivers fast charging in a compact and attracted form factor. It has an ergonomic design for easy handling and features high-quality safety protection features.
RAVPower 6700 is a compact and light-weight portable charger that is attractively priced. With its three ports, it can charge multiple gadgets at a time, and it’ll provide enough power to charge both a mobile and a tablet from 0% too.
- Capacity: 20,000mAh
- Charging Technology: Proprietary
- USB Charging Ports: 1x USB Type-A
- Output: USB Type-A 5V = 2.4A
While Anker dominates the mobile power solutions market, RAVPower has come close in offering fantastic products for the niche. One of our favorite products from RAVPower is this highly portable 6700mAh power bank. The RAVPower Portable Charger 6700mAh is a portable power bank that will fit in your pocket.
It has enough juice in it to charge most modern smartphones twice and will charge some of the bulkier 4000mAh smartphones over 1.5 times. A great thing about the RAVPower is that its USB Type-A port has an output of 2.4 amperes for fast charging. This ensures you can fast charge almost all smartphones that support the technology. The power bank will automatically detect the optimal charging current for any devices connected to it and adjust accordingly.
You can buy the RAVPower 6700mAh Portable Charger in three colors: black, red, and silver. The design is simplistic and ergonomic and has a high quality metallic shell encasing the battery and circuits. There are four status LEDs integrated on this compact body to indicate the charge level of the power bank as well.
- Capacity: 13,000mAh
- Charging Technology: PowerIQ
- USB Charging Ports: 2x USB Type-A
- Output: USB Type-A 5V = 3A
You shouldn’t be surprised to spot Anker on our list again, this time with the PowerCore 13000. This medium-sized power bank packs enough juice to charge most modern smartphones up to 4 times, while charging some of the largest ones up to 3 times. The small design ensures all that power is available to you in the palm of your hand, as this is one of the most compact 10000mAh+ power banks out there.
As with most of Anker’s power banks, the Anker PowerCore 13000 comes with the company’s own esteemed technology. PowerIQ is at the help again, enabling users to fast charge most of their devices at faster rates than standard power banks. Additionally, PowerIQ is supported by VoltageBoost technology to regulate the current output. The max speed on offer is 3A charging. The PowerCore 13000 doesn’t support Qualcomm Quick Charge, but it should be able to deliver fast enough charging for most devices.
When you buy the Anker POwerCore 13000, you’ll get a microUSB cable with it in addition to a travel pouch. As with most of their products, Anker offers an 18-month warranty for this product.
- Capacity: 10,000mAh
- Charging Technology: Qualcomm Quick Charge 3.0
- USB Charging Ports: 2x USB Type-A, 1x USB Type-C
- Output: USB Type-A 5V = 3A (Quick Charge 3.0), 5V = 2.4A (Regular); USB Type-C 5V = 3A, 9V = 2A, 12V = 1.5A
The Aukey Power Delivery Power Bank is designed to support high speed fast charging ability that comes with the flagship Android phones and iPhones over USB Type-C power delivery. Aukey’s power bank isn’t the fastest portable charger out there, but it is faster than most standard power banks thanks to its integration of the USB-C port.
The USB-C port offers 3 amperes at 5V to offer 18 watts total power. This is marginally greater than the standard 15 watts offered on regular chargers, but it will add a few percentage points faster when your smartphone or tablet has a low battery.
As on most power banks with USB Type-C ports, the USB-C port on the Aukey power bank is bidirectional. You can thus use it to charge the power bank from a wall charger at faster speeds than you would through the conventional micro USB port.
Combined with the two additional USB Type-A ports, the Aukey is capable of charging three devices at a single time – one from the USB Type-C port and two from the USB Type-A. However, the power is shared by the devices connected to it, so none of them will charge at full speed if you use all three ports simultaneously.
With the purchase, you’ll get t eh power bank and a USB-A to USB-C cable. Aukey confidently offers a 45-day money back guarantee and a generous 2-year product replacement warranty for their product.