The battery is still conventional, but no longer fashionable attribute of life. But the project Bаtthead on Kickstаrter promises to make ordinary rechargeable batteries are much "smarter": they will be embedded Bluеtooth and accelerometer.
The purpose of the device is quite simple — you can remotely turn off the battery to conserve power in the device. Or, for example, remotely through the iPhone to power off the portable gaming console, which is the child. Now the device is compatible with all devices on iOS in the near future promise to implement support for Android.
The accelerometer can be configured so that the battery is activated only when it is in motion, or set in a certain position. Thus, it is possible to make a flashlight with the "miracle battery" he would light up when you pick it up.