Jackery Mini Review
Reviews are generally favorable, and the company has upped the capacity, but some have found that this device doesn't hold a charge or stops working after a few charges.
The Jackery Mini (starting at $20, Amazon) is an OK choice for a portable charger, thanks in large part to its lipstick-size design. Jackery has also increased the capacity to 3,200 mAh from 2,600 mAh and decreased the cost to well below the list price of $69.95. Although Jackery Mini reviews are generally favorable, some reviewers find the device unreliable and difficult to use. Dozens report that it doesn't hold a charge or stopped working after a few months.
Expert review sites such as TechRadar count this among their recommended portable chargers but seem to have low expectations for such a small, inexpensive device and often include caveats in their reviews. For example, the TechRadar reviewer warns that the power button is easy to press accidentally, leaving a low battery when you need it.
User reviews on Amazon likewise note that the power button is apt to get bumped in a bag or pocket and drain the battery. Another frustrating design quirk: Buried in the product manual, and in an FAQ on the company site, are instructions to press and hold the power button for at least three seconds to begin charging after the Jackery Mini has been sitting dormant. That may explain some of the many complaints from consumers who say they used the charger only once or twice before it quit working.
On the whole, the Jackery Mini is fairly well reviewed on Amazon. It has about four stars based on more than 900 reviews at the time of writing. Users appreciate the LEDs that show the level of charge left in the battery and often comment on the handy little size. It's tiny, at 3.7 x 0.9 x 0.8 inches and 2.7 ounces. The Jackery Mini charges most major smartphones and other 5-volt devices using an included micro-USB cable or the cable that came with the device being charged. The Jackery Mini has an advertised charge time of two-and-a-half to four hours.
The Jackery Mini is compact enough for stowing wherever you go, but other similarly small external batteries seem to offer a more reliable charge for the buck.