Power supply output capacity
Portable computer systems like the laptops, notebooks, and also the PDA's run on batteries when not connected to any power source. There are many types of power sources available for a portable device like a laptop. Some of them are:
Nickel-cadmium.
Nickel-metal-hydride (NiMH).
Lead-acid.
Lithium-ion.
Lithium-ion-polymer.
Reusable Alkaline.
Fuel cell.
Let us look at some of these power sources in detail.
