The problem with smartphones is not that they all have terrible batteries. The tech inside their batteries has actually improved significantly int he last few years.
The problem is really that we're just asking our phones to do a lot more complex stuff - and that takes even more power to do.
Take the iPhone, for instance. Left alone doing nothing, the iPhone can survive for a couple of days at least with no problems. It's only when you start playing endless games of Plants Vs Zombies and Threes while browsing Twitter, listening to music and chatting on a Bluetooth headset that it gets tricky.
Fortunately, there is something you can do - short of buying a new phone. Or investing in this Israeli startup.
In the videos above we've collected three simple ways for you to extend the life of your iPhone's battery.
Of course, you could just buy a new phone after all. And we've got you covered there too: