There is tons of money being spent on research into batteries. Most of that research is being conducted on batteries that will offer more run time. There is also lots of research being done on batteries that can charge faster. A battery that lasts for 15 hours in a notebook is a great thing, but one that can be recharged in 5 minutes is fantastic too.
We are still a long way away from that sort of battery for the most part. You can get smaller batteries for gadgets like the Freeplay ZipCharge that offer long runtime and fast charging. The maker of the device claims that with a 15-minute charge the ZipCharge can fully recharge your iPod.
If you charge the thing for only a minute the maker claims you can get two more hours of run time from your iPod. The device charges via a wall outlet or a DC car adapter, which isn't included. It has eight tips that let it charge Nokia, Blackberry, iPhone, HTC, LG, Samsung, Motorola, Sony Ericsson, iPod & MP3 players. You can get yours now for £49.95.