The best portable chargers and battery packs add extra power to your electronic devices when you don’t have close access to a wall or outlet. They can power all kinds of devices, including phones, tablets, and laptops. Here are our top picks.
The best portable chargers charge all your essential devices. They come in all shapes and sizes, from tiny 2,000 mAh (milliamp hour) charging sticks to high-capacity power banks that contain over 30,000 mAh of pure electricity.
Choosing the right portable charger comes down to three key criteria: capacity, size, and charge time.
Portable chargers have a capacity between 2,000 mAh and 30,000 mAh. Small 5,000 mAh chargers are typically adequate for two full smartphone charges, while a 20,000 mAh portable charger can charge devices with larger batteries, such as laptops, multiple times.
Also, portable chargers come in different sizes and weights. Portable pocket chargers are easy to carry, but generally have a single USB port. Larger capacity portable batteries weigh more but charge faster and have additional USB ports to charge two or more devices simultaneously.
Lastly, loading time is important. Quick chargers can charge a smartphone from zero to full in 40 minutes, while pocket and solar-powered chargers can take longer. You need to compare the charging time with the size of the charger to find the right product for you.
Consider the devices you plan to charge, the capacity of your device, the number of devices to charge, and how often you have to access a wall charger. A portable charger that doesn’t suit your needs is likely to be left at home unused, so definitely think about what you need.
Now, read on to learn more about our picks for the best portable chargers in 2021.
The Anker PowerCore Slim 10000 se portable charger carries our top award for best overall portable charger. Its efficiency is on point, with 10,000 mAh good for charging an iPhone 12 twice.
The recharge time from zero to full is modest, taking about 6 hours. It also rocks with an ultra-slim profile and fits comfortably in a front or back pocket. With a lightweight, textured surface that mimics plaid, this portable charger looks good too.
The PowerCore Slim also features a proprietary technology called PowerIQ , which identifies all connected devices and automatically adjusts the voltage output to maximize charging speed.
A separate proprietary feature, VoltageBoost, also helps smooth out erratic voltage output due to cable resistance. Expect it to recognize your device and deliver uninterrupted upload speeds this way.
Although it is not the more resistant option out there, the Anker PowerCore Slim 10000 carries all essential safety features (eg, Overload and Short Circuit Protection), plus a fireproof housing and temperature controls.
Our only drawback with the Anker PowerCore Slim 10000 is that it can only charge one device at a time. However, its exceptional build quality, fast / constant charging, and appraised price are well worth it.
The Iniu portable charger It is an excellent and inexpensive option for users with a single device to charge regularly. Using triple 3A outputs, you can charge up to three devices at the same time. From zero to full charge, its 10,000 mAh capacity is enough to power an iPad Air once and an iPhone 13 up to 3 times.
Also, unlike the Anker PowerCore Slim 10000, the Iniu portable charger comes with a power indicator. Curiously shaped like a footprint, it lets you know how much juice is left.
We also love the fact that the Iniu portable charger is super slim. At just 0.5 inches thick, it’s pocket and purse friendly. For the price, this portable charger offers a good combination of capacity, size, and triple 3A outputs for multi-device charging.
The Omni 20 portable charger It is our preferred choice for laptops. It’s an absolute monster of a portable charger, with a 20,000 mAh battery capacity, a USB-C port, a Qi wireless charger, and two USB-A ports.
It also comes with pass-through charging, making it a universal power adapter that charges itself while charging other devices.
One of our favorite features of the Omni 20 portable charger is its design and construction. A sharp LCD screen displays remaining power, and a soft-touch rubber construction helps absorb shock and provides grip in tight spaces.
The Omni 20 isn’t the cheapest portable charger out there, but it’s worth the price of admission.
The Goal Zero Nomad 7 portable charger It’s a smart choice for outdoors where you often don’t have access to power outlets.
Unlike traditional brick-style portable chargers, this portable solar charger features a 7-watt foldable solar panel with a removable kickstand to place it in place to ensure catching the sun’s rays. It also comes with a ventilated pocket to prevent overheating. There is also an LED indicator, which uses a series of 4 LED lights to indicate how strong the solar energy is at the moment.
However, please note that this unit only provides power when exposed to sunlight and does not hold a real charge. That is an unfortunate disadvantage, but you can choose a different portable charger to make sure you have a battery pack when needed.
The Novoo waterproof portable charger it’s a rock-solid piece of technology that can withstand a lot of punishment. Run this through the wringer and it will come out unscathed.
Offered as a 10,000 mAh package, this robust portable charger can charge two devices simultaneously using a USB-C port and a port compatible with QuickCharge 3.0, which works great with any smartphone.
Plus, it’s shock-, dust- and water-proof, and includes a flame-retardant plastic casing that doesn’t flinch at all when dropped. A built-in LED flashlight can also run continuously for up to 45 hours straight, a potential lifesaver in dark and dangerous workplaces or in the middle of nowhere.
One knock on Novoo’s waterproof portable charger is that it doesn’t offer transfer charging. Pass-through charging allows the portable charger to charge itself while charging other devices, saving a lot of time. But, where would this charger lead, pass-through charging probably won’t be a concern anyway.
The Slim 2 portable charger is a charger nifty and simple about the size of a lipstick. Despite a low 5,000 mAh capacity, it is adequate for almost two full iPhone 13 recharges, more than enough for lighter users.
A single 2.1A fast output port optimizes charging speeds based on your smartphone. The portable power bank itself can also be fully charged in 3 hours using the supplied adapter.
Four LED power indicators on the base of the Slim 2 portable charger also let you know the amount of power remaining. The Slim 2 is simple, but it’s still an incredibly useful charger.
The Mophie Snap + portable charger It is our favorite iPhone charger. It packs a 5,000 mAh battery, which is good enough to charge an iPhone 12 and iPhone 12 Pro from 0-100 almost twice.
Where the Mophie Snap + shines with its compactness and design. It measures just 2.64 by 4.41 by 0.49 inches with a bronze aluminum texture, with all buttons and ports strategically placed on the bottom. A MagSafe accessory also allows you to connect to the back of your iPhone, allowing you to charge wirelessly without a charging cable.
The Mophie charger may not be the biggest battery pack, but it’s just great for the iPhone. This portable charger is compatible with iPhone 13 , iPhone 13 Pro Y iPhone 13 Pro Max .