The battery becomes empty in 1 or 2 days Although it is a large-capacity mobile battery that is useful when carrying a smartphone or tablet, as the battery capacity increases, the charging time ...

The problem with extended battery packs is not the time it takes to charge up your phone, but the time they take to charge themselves. The Pronto is a Kickstarter project that aims to solve that issue ...

The trouble with most backup batteries designed to keep your smartphones juiced up, is that they are not a fast charge battery, and take so long to charge when flat or aren’t powerful enough to ...