As a frequent traveler across the country, I always carry a bag brimming with tech gadgets. The challenge often lies in keeping everything powered, especially when I'm far from an outlet. Fortunately, the evolution of power banks has largely solved this issue for me. By ensuring my power bank is fully charged before departure, I can confidently avoid the frustration of a dead phone in the middle of nowhere.

TL;DR – These Are the Best Power Banks:

Our Top Pick### Belkin Boost Charge Plus 10K

1See it at Amazon### Anker 737

2See it at Amazon### Charmast Portable Charger

4See it at Amazon### Anker MagGo

2See it at Amazon### Veektomx Mini Power Bank

0See it at Amazon### JSAUX Power Bank 20000mAh 65W

0See it at Amazon### Emperor of Gadgets Portable Power Bank

0See it at Amazon

A quick search on Amazon reveals hundreds of power banks from lesser-known brands. While these devices are essentially large batteries and not overly complex, choosing a substandard one can lead to serious issues like overheating or swelling. It's crucial to opt for reputable brands like Anker, Belkin, and Mophie, which are known for their reliable power banks. Even Energizer is now entering the market, bringing more competition and innovation. Many modern power banks now support Qi wireless charging, a convenient feature if you forget your USB-C cable.

When selecting a power bank, capacity is key. A 20,000mAh battery pack can typically provide about two full charges for an iPhone and one for a tablet. For laptops, especially gaming ones, you'll need a power bank with at least 45W of output. Having tested numerous power banks, I'm here to guide you in choosing the perfect portable charger for your next trip.

Contributions by Danielle Abraham

1. Belkin Boost Charge Plus 10K

Best Power Bank

Our Top Pick### Belkin Boost Charge Plus 10K

1This 10,000mAh power bank comes with built-in cables, eliminating the need to carry extra ones. See it at AmazonProduct SpecificationsCapacity10,000mAhTotal output23WPorts1 x USB-C, 1 x LightningSize6.1" x 2.9" x 0.7"Weight0.5lbPROSHas a USB-C and Lightning cable built inCharges multiple devices CONSDoesn't have additional ports for other devices

Forget the hassle of packing cables with the Belkin Boost Charge Plus 10K, which features integrated five-inch Lightning and USB-C cables. Belkin ensures these cables stay organized with slots on either side of the charger. Despite the cables, the power bank remains compact, similar in size to a smartphone and weighing just half a pound.

This power bank is limited to charging via the two built-in cables, which might require an adapter for less common devices. However, it's compatible with most electronics, including the latest iPhones that support USB-C charging. With a 10,000mAh capacity, it's sufficient for smartphones and some tablets, though its 18W output per cable isn't ideal for laptops. iPhones can reach 50% charge in under 30 minutes, and it supports simultaneous charging of two devices at a total output of 23W. Pass-through charging is also available, allowing you to recharge the power bank and a device at the same time.

2. Anker 737 Laptop Charger

Best Power Bank for Charging Laptops

### Anker 737

2This robust charger keeps your laptop powered throughout the day. See it at AmazonProduct SpecificationsCapacity24,000mAhTotal output140WPorts1 x USB-C, 1 x USB-ASize6.13" x 2.15" x 1.95"Weight1.39lbPROSTons of wattage for fast chargingInformational display CONSIt's BIG

Laptops demand more power than phones or tablets, and the Anker 737 meets this need with a 140W output, suitable for most laptops and some gaming models. Its 24,000mAh capacity can fully charge most laptops once or twice. However, its size is a notable drawback; it's thicker than many laptops and weighs 1.39lbs, which can add significant weight to your bag.

Despite its bulk, the Anker 737 is invaluable for on-the-go work, especially during events like CES where power outlets are scarce. It's a reliable choice when you can't afford to run out of battery mid-project.

3. Charmast Portable Charger

Best Budget Power Bank

### Charmast Portable Charger

4This charger offers many features of the Mophie Powerstation Plus at half the price, though it's bulkier and charges slower. See it at AmazonProduct SpecificationsCapacity20,000mAhTotal output20WPorts1 x USB-C/Micro combo, 1 x Lightning, 1 x USB-A Size5.91" x 2.83" x 1.09"Weight368gPROS20W fast chargingDigital display showing remaining powerCONSA little bulky

Quality power banks can be pricey, often around $80, but the Charmast Portable Charger offers a 20,000mAh capacity for half that price. While it's limited to 20W output, it still supports fast charging. Its design resembles the Belkin Boost Charge Plus 10K but is thicker and heavier at about 1-inch thick and 0.8lbs. It's a cost-effective option, though it may take an hour and a half to charge your phone fully.

4. Anker MagGo Power Bank

Best Power Bank with Wireless Charging

### Anker MagGo

2The Anker MagGo offers efficient wireless charging on the go, despite its smaller 10,000mAh capacity. See it at AmazonProduct SpecificationsCapacity10,000mAhTotal output15W (Qi2), 30W (USB-C)Ports1 x USB-CSize4.09" x 2.78" x 0.58"Weight0.44lbPROSExtremely portable and lightweightQi2 wireless charging at 15WCONSOnly 10,000mAH

While many power banks support wired charging, fewer offer wireless charging, and even fewer do it well. Most use the first-generation Qi standard, limited to 7.5W, but the Anker MagGo supports Qi2, providing up to 15W for faster charging. Its compact size and light weight make it highly portable, though its 10,000mAh capacity limits it to one or two full iPhone charges.

5. Veektomx Mini Power Bank

Best Compact Power Bank

### Veektomx Mini Power Bank

0This tiny yet powerful charger offers a 10,000mAh capacity with three charging ports. See it at AmazonProduct SpecificationsCapacity10,000mAhTotal output22.5WPorts1 x USB-C, 1 x USB-A, 1 x MicroUSBSize4.2" x 2.7" x 0.6"Weight0.36lbPROSUltra-compact dimensionsLED battery indicatorCONSIncludes older microUSB

The Veektomx Mini Power Bank is exceptionally compact, similar in size to a deck of cards but thinner, and weighs only 5.8oz. Despite its size, it packs a 10,000mAh battery, sufficient for a full smartphone charge. It features three ports: USB-A, USB-C, and microUSB, supporting fast charging up to 22.5W. Its durable plastic body and LED battery indicator enhance its appeal, all for around $25.

6. Jsaux Power Bank 20,000mAh 65W

Best Power Bank for Steam Deck

### JSAUX Power Bank 20000mAh 65W

0This 65W charger is perfect for the Steam Deck, featuring a built-in USB-C cable and additional ports. See it at AmazonProduct SpecificationsCapacity20,000mAhTotal output65WPorts1 x USB-C (cable), 1 x USB-C, 2 x USB-ASize6.26" x 2.68" x 1"Weight1.1lbPROS65W PD supportBuilt-in USB-C cableCONSBulkier design

The Steam Deck's battery life can be a challenge, but the Jsaux Power Bank 20,000mAh 65W offers a solution with its 20,000mAh capacity and 45W charging speed. It includes a built-in USB-C cable and additional ports for multi-device charging. Though bulkier, it's manageable and can be attached to the Steam Deck with a ModCase for convenience. It's also compatible with other handheld gaming PCs.

6. Emperor of Gadgets Portable Power Bank

Best Power Bank for Nintendo Switch

### Emperor of Gadgets Portable Power Bank

0This 10,000mAh battery straps onto your Switch, offering a built-in USB-C cable and additional ports. See it at AmazonProduct SpecificationsCapacity10,000 mAhTotal output15WPorts1 x USB-C (cable), 1 x USB-C, 1 x USB-ASize5.3" x 2.8" x 0.7"Weight0.47lbPROSAttaches directly to SwitchIncludes USB-C cable and an additional USB-A and USB-C ports to charge other accessoriesCONSAdds bulk to Switch

The Nintendo Switch's battery life can be limited, especially with demanding games. The Emperor of Gadgets Portable Power Bank, designed specifically for the Switch, doubles your playtime with its 10,000mAh capacity. It straps onto the Switch, adding minimal bulk, and includes a built-in USB-C cable for easy charging. It also supports other devices, including the upcoming Nintendo Switch 2.

What to Look for in a Power Bank

Capacity

Capacity is the most crucial factor when choosing a power bank. Measured in milliamp-hours (mAh), a 3,000mAh capacity can double the battery life of most flagship phones. A 10,000mAh or higher capacity is standard and can provide multiple charges. Keep in mind that some power is lost during transfer, so you won't get the full capacity.

Ports and charging speeds

Different chargers offer varying charging capabilities. Standards like Power Delivery (PD) can maximize energy transfer. For quick phone charging, aim for at least 20W, ideally 30W. For iPads, 30W is a minimum, while laptops require 45W or 60W. Consider the charger's input speed as well; a 20,000mAh battery with only 5W input will take longer to recharge.

Power Bank FAQ

Should you drain your power bank before charging it again?

No, it's not necessary to fully drain lithium-based batteries found in power banks. Doing so can damage the battery and reduce its capacity. Charge your power bank before it's completely depleted or every few months if not in use.

Can you bring portable power banks on a plane?

Yes, you can bring power banks on a plane if they use lithium-ion or lithium metal batteries. The TSA allows them only in carry-on luggage, not in checked bags, due to fire risk. The size limit is typically 100Wh or around 27,000mAh, so a standard 10,000mAh charger is usually fine.

How long do power banks last?

The lifespan of a power bank depends on usage, build quality, and capacity. Reputable brands like Anker and Belkin typically last 2 to 4 years. To extend the life of your power bank, avoid overcharging, store it in a cool, dry place, and charge it fully every three months.