One of the features that counts when it comes to choosing a gadget or a device is the span or the duration that its battery can last. Most users would love to have a gadget that has battery that can last for days even without charging. The battery duration is one thing that makes a gadget's portability achieved its purpose. A user can drag it anywhere he wants to as long as there is a battery. It is a lot more convenient to have a device that has good battery duration than the one which needs to be charged after a short use. Nevertheless, battery problems can't be avoided in some devices.