How to Choose the Right Power Bank for Your Needs

Your Guide to buying the best power bank


A power bank is an essential device for anyone who needs to stay connected while on the go. With advancements in technology, the range of power banks available has grown exponentially, making it difficult to choose the right one. This buying guide will provide useful information on the various types of power banks, features to consider, and tips for finding the best power bank for your needs. With the right information, you can make an informed decision when selecting a power bank that meets your requirements and provides reliable performance.

Key features

  1. Capacity (mAh): The capacity of a power bank determines the number of charges it can provide. Look for a capacity that meets your needs.
  2. Outputs: Power banks are available with multiple outputs for charging different types of devices. Make sure to get one with the right output ports for your needs.
  3. Inputs: Look for a power bank that offers multiple inputs, such as micro-USB, USB-C, and Lightning, so you can recharge it quickly with a cable you already have.
  4. Size and Weight: Power banks come in a variety of sizes and weights. Choose one that fits your needs and is easy to carry around.
  5. Safety Features: Choose a power bank that has safety features such as over-charge protection, short-circuit protection, and temperature control.
  6. Warranty: Look for a power bank with a warranty so you can be sure of its quality.

See the most popular power bank on Amazon

Important considerations


  • Portability - Power banks are small, compact, and lightweight, making them easy to carry around and use on the go.
  • Convenience - With a power bank, there's no need to hunt for an AC power outlet or swap batteries; you can just plug in your device and be on your way.
  • Backup Power - Power banks are a great way to provide a backup power source in case of an emergency.
  • Multi-Device Charging - Many power banks are capable of charging multiple devices at once, making them ideal for keeping multiple gadgets topped up.
  • High Capacity - Some power banks are capable of storing enough charge to fully charge a smartphone several times over.
  • Durability - Power banks are built to last and can easily withstand the daily rigors of life.


  • Size/Weight - Power banks can be large and heavy, making them difficult to carry around with you.
  • Battery Capacity - Power banks may not have the right capacity to charge a device multiple times.
  • Charge Time - Power banks usually take a long time to charge a device, often resulting in users running out of power before their devices can be charged.
  • Durability - Power banks are not always designed to last for a long period of time and may break down over time.
  • Heat Generation - Power banks can generate heat when they are in use, which can be a safety concern.
  • Price - Power banks can be expensive, so it is important to consider your budget before making a purchase.

Best alternatives

  1. Solar charger - A device powered by solar energy which can charge batteries or mobile devices.
  2. USB wall charger - A device that plugs into an electrical outlet and has a USB port to charge mobile devices.
  3. Power strip - An electrical device which provides several outlets and often surge protection for plugged-in electronics.
  4. Car charger - A device that connects to a vehicle's cigarette lighter socket and provides a USB port for charging mobile devices.

Related tools, supplies, and accessories

  • Power Bank - A portable battery that supplies power to USB-powered devices such as smartphones and tablets.
  • USB Charger - A device used to charge a USB-powered device, usually through a wall outlet.
  • Power Strip - A device that has multiple outlets to plug in multiple devices.
  • USB Cable - A cable used to connect USB-powered devices to a power bank.
  • Car Charger - A device used to charge a USB-powered device while in a car.
  • Carrying Case - A protective case designed to store and transport a power bank and its accessories.
  • Solar Charger - A device used to charge a USB-powered device using solar energy.

Common questions

  1. How do I choose the right power bank?
    • When selecting a power bank, consider the capacity, size, number of USB ports, and output. The capacity is the most important factor when choosing a power bank. You should also consider the number of USB ports and the output of the power bank.
  2. What is the difference between mAh and Wh?
    • mAh (milliampere hour) is a unit of measuring electrical charge, while Wh (watt hour) is a measure of energy. mAh is usually used to measure the capacity of a battery, while Wh is usually used to measure the energy output of a power bank.
  3. How long does it take to charge a power bank?
    • The charging time of a power bank depends on its capacity, the type of USB port, and the input voltage. Generally, it takes about 5-7 hours to fully charge a power bank.
  4. Can I use power banks to charge my laptop?
    • Some power banks are capable of charging laptops, but it is best to consult the manufacturer’s guidelines when using a power bank to charge a laptop.
  5. How can I maintain a power bank?
    • To maintain a power bank and ensure its longevity, avoid extreme temperatures, make sure to store it at 50% charge, and use the original power adapter to charge it.


One funny fact about power banks is that they can actually explode! This is because lithium-ion batteries are very sensitive and prone to overcharging, which can cause them to overheat and catch fire. In fact, in 2018, there were over 200,000 reported cases of power bank explosions in China alone. Fortunately, this can be easily avoided by following the instructions and avoiding overcharging. Source: The Sun.

Disclaimer: This buying guide was not created by humans, and it is possible that some of it's content is inaccurate or incomplete. We do not guarantee or take any liability for the accuracy of this buying guide. Additionally, the images on this page were generated by AI and may not accurately represent the product that is being discussed. We have tried to convey useful information, but it is our subjective opinion and should not be taken as complete or factual.