We had to use a camera to track each battery through its charging cycle, as the monitor continues to collect data after the battery is fully charged (charging is normal and unfortunately interferes with our tests). While we have made some top picks, be sure to read through each review, linked at the bottom of this page to help you find the best powerbank for your needs. We think you better spend a little more on one of our high-performance power bank picks, which all offer many output options, have hub functionality (you can pass power and data through them) and are powerful enough to charge most laptops. If you want the fastest possible charge and the highest capacity of each power bank we've tested — and you can carry one or two separate charging cables around with you — this is a great option. Remedy: Consumers should immediately remove the recalled power banks from the grid and stop using them and dispose of the recalled electricity banks by following local legislation for the disposal of lithium-ion batteries. A drop-ship list must be provided in an Excel® table with separate columns for the merchant company name, order number, ship-to-name, address 1, address 2, city, state, zip, and quantity per drop. Each battery highlighted above is the one we recommend about the dozens, if not hundreds, of others currently sold on Amazon and elsewhere, which is why we dispensed with a handful of favorite brands: Mophie and Anker, with some remarkable one-off solutions from Aukey, Ventev, Moshi and Harman Kardon, which are designed for a good measure. But able to quickly top off your phone while trekking through The Legend of Zelda: Breath of the Wild on the Nintendo Switch at the same time is worth the extra weight and price. We then used the Total Phase Data Center program, checked the power profile and any errors and recorded the volts and amplifiers (to calculate the input in watts). We then ran the Total Phase Data Center program, checked the power profile and all errors, and recorded the volts and amplifiers (to calculate the input in watts). These powerbanks are robust yet portable, so you can charge other devices — wireless headphones, mouse, keyboard, vaporizer, digital camera and more. The product colours shown in this catalogue may differ slightly from the actual products due to the inherent limitations in photography, film separations, offset printing and plastic molding processes. It also has a small built-in flashlight that does not take up extra space and can be useful when digging through your pocket to find your keys. But if you're looking for a small and lightweight device that can still charge your smartphone a few times during your trip, this could be your perfect sweet spot between size and ability. However, the cables are almost impossible to get back into their slots after charging — compared to those on the Chargers and Jackery Bolt that slip in and out velvety velvety — and the materials seem to be more flimsy. What makes the a little more useful than the other charging banks on this list is the fact that you can see its exact remaining charge, not a rough estimate as in some of the competitors, so you know how much more you can charge your devices for. Authorized returns found incorrect due to our error will be replaced or credited free of charge if the customer takes the following steps. As long as your device is compatible and lightness/portability is not your main concern (it weighs approximately the same as a can of soup), buying this portable charger is a no-brainer. First, if you find yourself away from a power point for a long time and constantly work on different devices, then you will want a high battery capacity. If you use a battery case to get the extra juice you need to keep your Android devices running all day, you're not alone — but battery cases have some significant drawbacks. It's also a bit cheaper than some of the other power banks on this list as well, so it's a good choice if you want a reliable power bank that provides a lot of battery life for your devices while not breaking the bank. We also made sure that this list of the best powerbanks is filled with devices that are compatible with a variety of smartphones, tablets and more.