The Best USB Battery Packs in 2024

Given how much we rely on our devices, especially smartphones, running out of battery can be frustrating. Moreover, finding an outlet to recharge is not always practical, making it essential to have a portable charging solution. For individuals who have busy schedules or those who are always on the go, a USB battery pack becomes an invaluable tool.

In this guide, we'll dive into the world of USB battery packs, break down why they're a must-have, highlight the top high-capacity models, and help you choose the right one so you're never left powerless again. 

What Is a USB Battery Pack? 

A USB battery pack is a portable battery that allows you to charge electronic devices such as laptops, tablets, and smartphones while on the go. A USB battery pack is charged through an external power supply, such as a wall socket. Once the USB battery pack is fully charged, you can use its output port to connect and charge your other devices. USB battery packs operate in a manner similar to any other rechargeable battery, as they are conventional batteries with additional functions.

Why Do You Need a USB Battery Pack?

Here are some reasons why you might need a USB battery pack:

• Portability:USB battery packs are small and lightweight, making them easy to carry around with you.
• Emergency Power:They can provide backup power for your devices when you don't have access to a wall outlet.
• Extended Battery Life:For devices with shorter battery life, a USB battery pack can help extend their usage time.
• Multiple Device Charging:Many USB battery packs have multiple ports, allowing you to charge multiple devices simultaneously.
• Outdoor Activities:USB battery packs are essential for outdoor activities such as camping, hiking, or traveling where electrical outlets are limited.
• Disaster Preparedness:USB battery packs can be a lifesaver in the event of a power outage or emergency.
• Convenience:They offer a convenient way to keep your devices charged on the go. 

Best High-Capacity USB Battery Packs

Now that you understand the importance of having a USB battery pack, let's explore some of the best options available in the market.

1. Anker Prime 20,000mAh Power Bank

The Anker Prime 20,000mAh Power Bank is an excellent choice for on-the-go charging, ideal for busy professionals and travelers. With a remarkable capacity, it can charge a smartphone over three times or fully charge a MacBook Air, making it perfect for busy professionals and travelers. Its compact design (4.9 × 2.1 × 1.9 inches) ensures it fits easily into your bag, while the two high-powered USB-C ports and one USB-A port deliver a total output of 200W, allowing simultaneous charging of two laptops at 100W each.

Additionally, the power bank features lightning-fast recharging, reaching full capacity in just 1 hour and 15 minutes through its 100W USB-C port. The smart digital display provides real-time information on battery capacity and charging status, ensuring you’re always informed. With the advanced ActiveShield™ 2.0 safety system, the Anker Prime offers secure and efficient charging, making it a must-have accessory for anyone in need of reliable power on the move. 

2. Anker Prime 27,650mAh Power Bank 

Building on the impressive features of the Anker Prime 20,000mAh Power Bank, the Anker Prime 27,650mAh Power Bank takes portable charging to the next level. This powerhouse is designed for those who need even more capacity and faster charging options. With up to 250W of output from its two USB-C ports and one USB-A port, it can quickly boost a MacBook Pro 16" (M2 Pro) to 50% in just 28 minutes, making it an ideal companion for busy professionals.

Like its 20,000mAh counterpart, the 27,650mAh model is compact—about the size of a soda can—yet delivers enough power to charge a 13-inch MacBook Air 1.28 times or an iPhone 14 nearly five times. It features lightning-fast 170W USB-C recharging, allowing you to fully replenish it in just 37 minutes. The intuitive Anker app enhances usability by providing real-time stats and alerts, ensuring you stay connected no matter where you are. With its combination of high capacity and advanced technology, the Anker Prime 27,650mAh Power Bank is the perfect upgrade for anyone who demands reliable, on-the-go power.

How to Choose a USB Battery Pack?

There are many power banks with different brands, sizes, and features. Not all of them are suitable for daily usage, and with so many options available, choosing the right one can be challenging, especially if we are unfamiliar with the technical requirements. Here are some things that you have to consider before purchasing a USB battery pack.

1. Capacity

Capacity refers to the amount of energy a battery can store and provide to your devices, measured in mAh (milliampere-hours). To determine the capacity you need, consider how many devices you’ll be charging and how frequently you can recharge the USB battery pack.

2. Size

USB battery packs come in different sizes. Size is a crucial factor to consider when choosing a battery pack if you plan on using it on the go or traveling frequently.

3. Charging Speed

The charging speed of a USB battery pack refers to the amount of power it can deliver to your devices. A higher charging speed enables faster charging for your devices, but it also means the battery pack may deplete more quickly.

4. Compatibility

Ensure that the USB battery pack is compatible with your devices. Certain USB battery packs might only accept particular devices or require extra cables or adapters.

5. Safety Features

Safety features such as temperature management, short circuit protection, and overcharge control help protect your USB battery pack and prevent device damage. Choose a power bank with these safety precautions to avoid unwanted accidents.

6. Brand and Quality

Select a well-known brand and quality power bank to guarantee reliability and durability. Low-quality, cheap power banks might not offer the stated capacity or charging speed and might be prone to damage or failure.

Conclusion

USB battery packs are portable batteries that can charge devices like laptops, phones, and tablets anywhere. If you travel frequently or work in areas with limited access to electricity and rely heavily on gadgets, a USB battery pack—especially a high-capacity and compact one—can be a lifesaver.

The Anker Prime 20,000mAh Power Bank strikes a great balance between capacity and portability, while the Anker Prime 27,650mAh Power Bank offers even more power for quickly charging larger devices. When selecting a battery pack, consider factors such as capacity, size, charging speed, device compatibility, safety features, and brand to ensure you choose the right one for your needs.

FAQs

What is the difference between a power bank and battery pack?

A power bank and a battery pack essentially refer to the same device—a portable charger for electronic devices. "Power bank" is the more commonly used term, while "battery pack" can sometimes refer to a specific type of battery or a component of a larger system, but often they are interchangeable.

How long will a USB battery pack last?

Most quality USB battery packs are expected to last 2-3 years or 300-500 charge cycles if they are properly maintained. Factors that impact battery lifespan include capacity, charging habits, usage patterns, and exposure to extreme temperatures.

Can you charge a laptop with a USB battery pack?

Yes, most laptops can be charged with a USB battery pack. Nowadays, USB battery packs are available specifically designed for laptops and feature higher battery capacities and greater output power. These battery packs often utilize USB-C connectors, which have become standard on many modern laptops.

What’s the biggest USB battery pack?

The biggest USB battery packs currently available can have capacities up to 50,000 mAh or more. These high-capacity packs can charge multiple devices multiple times and often include several output ports for simultaneous charging. However, it's essential to check compatibility and weight, as larger battery packs can be quite bulky and heavy.