Associated Press — Consider a battery pack
There is a growing choice of cases and protective covers on the market for iPhones, and one or two with a built-in top up battery are starting to roll out for the more popular devices. The Mophie Juice Pack Air, for example, can add another 36 hours of use to an iPhone, while iWalk has a number of battery cases and external units that are compatible with both Android and Apple handsets.
Install a battery-saving app
Manually adjusting settings will save battery power but it can be laborious as can switching everything back on again when it is needed. Using an app, such as the Du Battery Saver app for Android or the Battery Saver for the iPhone will do all of this automatically and can even re-educate users as to when to charge a device and for how long for preserving its useful life.
We would never dream of rationing daily smartphone, or tablet use because there's always a power socket or USB close at hand, but keeping batteries topped up and working well while on holiday is not so simple. With that in mind here are our top tips to squeeze as much use as possible out of your mobile device between charges.