mobiles accessories, cell phone parts

1. The most common types of Cell Phone Batteries
The four most common types of batteries for cellular phones are Lithium Ion (Li-Ion), Lithium Polymer (Li-Poly), Nickel Metal Hydride (NiMH) and Nickel Cadmium (NiCd).

Formerly, the most common form of mobile phone batteries were nickel metal-hydride, as they have a low size and weight. Lithium Ion batteries are sometimes used, as they are lighter and do not have the voltage depression that Nickel Metal Hydride batteries do. Many mobile phone and mobile accessories manufacturer have now switched to using Lithium Polymer batteries. The main advantages is that it is even lower weight and has the possibility to make the battery a shape other than strict cuboid. Mobile phone and mobile accessories manufacturers have been experimenting with alternative power sources, including solar cells and Coca Cola.

2. How to Choose a Battery?
Choosing cell phone batteries is not as simple as buying a pack of AA batteries at a store. There are various types of batteries available, like Blackberry Battery, Nokia Battery, Siemens Battery, Sony Ericsson Battery, etc; and many factors should to be taken into account. Cell phone batteries have different weight, lifetime, talk time and thickness. All of this can have a significant impact on your cell phone experience. Here is some quick information to help with your buying decision.

Battery type is one the most misrepresented characteristics. In general, there are four battery types used in cell phone batteries (see above). Whenever possible, you want the newest type.

Capacity is measured in mAh (milliamp-hour). The higher the capacity, the longer the standby and talk time. The first impulse is to get the cell phone battery with the highest capacity. However, keep in mind that the capacity has to fit somewhere. The highest capacity cell phone battery is generally heavier and bulkier than lower capacity batteries. You may still need the highest capacity cell if you want to use your phone longer between recharges. Most people are happy with a standard capacity cell phone battery. 

Battery life is a factor of battery capacity and battery drain. Any quotes that you see for standby and talk time assume ideal conditions. Most of us will never use a battery full under ideal conditions the whole time. Using a phone in analog mode drains a battery really quick. So leave a phone on when there is no signal. This can happen when you are in a building, tunnel, underground, or in a plane. In these cases, the phone will spend a lot of power trying to reestablish a connection to the tower.

Size, or more generally, thickness, is determined by the battery type and capacity (see above).  Extra capacity will make a battery larger. You can offset this by selecting a battery made from lithium ion or lithium polymer since these newer type cells have a higher power density (they pack more power in the same amount of space). You will see terms like slim, ultra slim, main, and extended used by different vendors. This is not a good indicator of the size as everyone''s idea of slim is different. Size is usually measured in mm (millimeter). 

Weight is closely related to the size of the battery. The higher the capacity, the thicker the battery, the heavier it will be. Weight can be offset by selecting lithium ion or lithium polymer batteries as they have a higher power density (they pack more power in the same amount of weight).

Battery freshness is often overlooked. Make sure that you purchase a fresh battery. The batteries'' ability to hold a charge is reduced over time. Be wary of clearance items that have been sitting on a shelf for a long time.