My housemate turned to me on Saturday and quipped, 'I may as well have a landline, given the amount of time my phone lasts away the charger!'
Of course she is exaggerating slightly - although reportedly the new update has really hit the latest iPhone's battery life. Yet another reason why I toil on with my bouncing iPhone4. The good news is that chargers are becoming more and more mobile (pun intended!)
There are chunky cases that charge your phone, 'emergency' chargers you can tote around for a top up, and as any barista or barstaff will tell you, a pretty high proportion of people are happy to carry around their phone chargers.
But Monday brings good news, in the form of trainers that capture your kinetic energy to charge your phone. It's an idea so obvious you have to wonder why it's not already refined and mass-marketed.
These smart shoes could be the answer though, as boffins at the University of Wisconsin-Madison have developed a pair of trainers capable of recharging your phone as you walk. Dubbed InStep NanoPower, the new "bubbler" tech makes use of the kinetic energy generated by repeatedly putting one foot in front of the other. The shoes use a high-tech sole fitted with a pair of flat plates separated by a small gap filled with a conductive liquid. They're capable of creating up to 10 watts of power per square meter walked - more than enough energy to charge your 2 watt requiring phone.