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Mobile power bank reviews

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Last updated: 24 February 2022
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Checked for accuracy by our qualified fact-checkers and verifiers. Find out more about fact-checking at CHOICE.

The battery life of your smartphone is under a lot of extra strain from apps, social media, music streaming and online video. A power bank will help keep your phone charged throughout the day whether it's an iPhone or Android with a micro-USB or USB-C input.

We test power banks designed to keep even the most power-hungry smartphones kicking day and night. Our detailed test reveals:

  • approximate charge time
  • approximate portable battery recharge time
  • size, weight and which models can fit in your pocket.

Not sure where to start? Check out our power bank buying guide to see what features you want and need.

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Our interactive comparison table shows the number of devices each power bank can charge simultaneously, whether they can power a tablet, laptop and Nintendo Switch, and other useful features and functions such as auto on/off settings, fast charge and USB-C output.

Note: We removed the "total number of charges" element of our test as we felt it had become arbitrary with the huge range of phones on the market. You can calculate the approximate number of charges yourself by dividing the usable measured capacity of the power banks you're considering by your smartphone's claimed battery capacity.

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Brand

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List of brands we tested in this review.

    Price

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    Recommended retail price.

    enter value/s in increments of 1 between 15 and 169

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    Performance score

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    Each power bank is connected to an electronic load reference instrument, which is set to draw the maximum supported current from the fastest charging USB-A port. The voltage is determined by the power bank itself and recorded in the output, and data is graphed to show capacity drain over time. This gives us the total milliamp hours that the battery supports.

    enter value/s in increments of i between 1 and 92

    Weight (g)

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    In grams, without any cables or packaging.

    enter value/s in increments of i between 114 and 1018

    Can power a laptop via USB-C

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    Some USB-C enabled power banks can power USB-C enabled laptops using a USB-C to USB-C connection. This means the laptop battery will last longer as the power bank is essentially operating as a second battery. Charging is different to powering, as it replenishes the battery during use or when it's off. Power banks in this test can't charge laptops, but some can power laptops. If the laptop didn't indicate that it was on battery power, then we determined that the power bank on test couldn't power it.

      Included in this review

      Members-only access
      • Overall score
      • Performance score
      • Ease of use score
      • Display score
      • Multiple device score
      • Pocketability
      • Power bank charge time (hh:mm)
      • Usable capacity measured
      • Fastest charging 5V USB port amps
      • Slowest charging 5V USB port amps
      • Maximum combined output watts
      • Overload protection
      • Short circuit protection
      • Can power a laptop USB-C
      • Can power a Nintendo Switch
      • Good points
      • Bad points
      • Price
      • Year tested
      • Stated capcity mAh
      • Number of USB-A ports
      • Number of USB-C ports
      • Battery type
      • Weight
      • Size mm HDW
      • Quick charge output
      • Wireless charging
      • Charge indicator
      • Over-charge protection
      • Other features

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