laptop Battery and charger

Laptop has a battery pack which provides power to the laptop while it‟s not connected to the wall-plug through AC/DC power adapter, laptop batteries come in many different shapes and they are model-specific, the laptop battery life depends upon many conditions and circumstances: screen brightness, intensity of running programs, the temperature of the working environment, etc. Current batteries have aperiod of between 2 and 10 hours.

 

 

Types of Batteries Different types of batteries use different types of chemicals and chemical reactions Some of the more common types of batteries are: Lithium-ion battery: These batteries are found in laptop, call phones and other high-use portable equipment. Nickel-Cadmium: (NiCad) batteries were the first type of battery commonly used in laptop and older laptop sometimes still use them, they have a life of roughly two hours between charges, but this life decreases with each charge based on the memory effect, gas bubbles form in the cell plates, reducing the total amount of available cell space for recharge. 

The only way around this is to discharge the battery completely before recharging it. The other drawback of NiCad is that if the battery charges too long, it can explode. Nickel-Metal Hydride: (NiMH) batteries are the bridge between NiCad and the newer Lithium-Ion (Lion) batteries. They last longer between charges than NiCad but overall have a shorter total lifespan. They suffer from the memory effect, but to a lesser extent than NiCad batteries. Power adapter AC adapters provides converts the high voltage AC power from a wall outlet into the low voltage DC power needed for laptop. The AC/DC adapter provides power for the laptop and charges the battery.

 

 

It‟s very important to use the right adapter for laptop, the output voltage must be the same, the amperage could be the same or higher than on the original power adapter.