See our article on 'How we test power banks' for more information. We multiply the number of charges (including partial charges) by the 80% phone battery capacity value to give the usable capacity of the power bank. Best Small Power Banks 2022: All-Day Charging, Best. For USB-C power banks, we calculate what 80% of the battery capacity of our test phone is, then we use the power bank to charge the test phone to 80%, multiple times, until the power bank is fully discharged. The best small power banks include supersized batteries that last for days and portable chargers so lightweight youll forget theyre there. In 2022 this method was altered to be a general performance test observed over the course of 30 minutes.įor USB-A power banks, we use a a Maynuo M9712 DC electronic load reference instrument to work out the total milliamp hours that the battery supports. 82 Best portable power packs in 2022 Published Gannon Burgett Tweet Over the past few years, more and more camera manufacturers have added USB charging to their respective camera models. This does not contribute to the overall score. Higher scoring models showed a limited drop in charging performance when two or more devices were plugged in. This refers to the power bank's ability to charge multiple devices at once, if more than one port is available. This score takes into account the position of the display on the unit and how easy it is to view and understand at a glance. This gives us the total milliamp hours that the battery supports.īased on port labelling (are inputs like USB-A, USB-C and fast charge clearly labelled?) and quality of instruction manual. The voltage is determined by the power bank itself and recorded in the output, and data is graphed to show capacity drain over time. Tell us what you think.Įach 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. We're currently testing this service and will consider providing more shopping links in the future. 100% of the money we make goes straight back into our nonprofit mission. Power Banks in Power & cables(1000+) Anker PowerCore III Sense 20K USB-C Portable Battery Charger - Black Swiss Tech Antreiben 10K mAh Portable Power Bank. While we make money if you buy through some retailer links, this doesn't influence any of our rankings. Clicking a link will take you to a retailer's website to shop. Shopping links on the CHOICE websiteĬHOICE is an independent, nonprofit organisation dedicated to helping consumers. 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. 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. Our interactive comparison table shows the number of devices each power bank can charge simultaneously, whether they can power a laptop and Nintendo Switch, and other useful features and functions such as auto on/off settings, fast charge and USB-C output. Whether it's an iPhone or Android with a micro-USB or USB-C input, a power bank will help keep your phone charged throughout the day. The faster the input, the faster your battery pack rechargers, the faster you’re ready to hit the road.The battery life of your smartphone is under a lot of extra strain from apps, social media, music streaming and online video. Look at the specs of the battery, and ensure that its input isn’t limited to slow charging such as 5V/1A.Read this Macworld report on USB-C packs to learn more about batteries and capacity. Battery capacity and efficiency varies based on a number of factors.
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