A laptop battery is what makes your laptop run. Without it, you won't be able to use your laptop unless it is plugged-in directly to a wall outlet. Think of the battery like the gasoline that fuels your car. These days, batteries are made of lithium ion and have an average power of around 4 hours. Unlike gasoline though, your laptop battery would degrade over the long run. Why does this happen? There are two facts that affect this; one is that notebook batteries today last for an average of 300 recharges, and second these batteries have a lifespan of 3 years. If you go over these limits then your battery would not operate at its peak performance. It would be time then to get a replacement battery.
 

Now yes was ist kobalt it depends on how you're using it. But the Apple creators say it will play movies solidly for 10 hours for example before the iPad battery says "feed me".

Nonetheless, the Volt is not something in GM's immediate plans. The idea for the Volt would require that a cost efficient 400-lb lithium-ion battery be found. lithium facts-ion batteries of this size are not currently available. Further advances in battery technology would be required to allow GM to consider making the Volt a production car. These are enhancements that could occur in as little as a year, or as many as 20 years. GM has stated that they feel the technology is almost there, yet a vehicle like this is probably about a decade away.

ONickel Cadmium (NiCd) - The oldest battery type used in cell phones. They are the heaviest and lowest capacity battery type. These can be somewhat hard to find.

Step 2 - Turn off your iPod and set the hold button to the on position. Take a flathead screwdriver, as thin as possible but oftentimes the retail store that sends you the battery will give you a tool. In any case you must open up the unit by lithium bettery stock putting the tool or screwdriver between the plastic and the metal. Once you sense a clip, pry it ever so gently. Continue around the iPod, opening each latch.

Li-ion cells have a good peak output current and low source resistance. When you overload the tool, the voltage stays up, and they just keep pumping current into the motor. Power tools have thermal overload trips in the motors, and that's a good thing with Li-ion batteries, if they didn't they'd just burn the motor out!

The Bleu 355X is a sleek bar shaped mobile phone has a 65k colors display. The Bleu 355 X Mobile Phone has an inbuilt FM radio and MP3 player. It supports an external 2 GB memory. It is also equipped with an LED torch light and motion sensors. This Bleu Mobile has a Li-Ion Standard Battery and offers connectivity options like Infrared, WLAN, WAP Enabled and A2DP Stereo Bluetooth.