An effective and efficient battery is very vital to a particular mobile phone. It is like the lifeline of a cell phone. Mobile phones are fast evolving and developing and at the same time efficient batteries are still perhaps to be developed.

Currently most cell phones can function for four to five days without any shortcomings, but when speaking of an in call battery life they fail.

Older cell phones used Nickel Cadmium or Nickel Metal Hydride powered batteries which both had their shortcomings. The most prominent malfunction was the memory issue and the metal used in the production was very heavy. The memory issue is the decreased voltage of the mobile phone’s battery. In other words if you completely do not release the entire charge then you won’t be ale to charge it to the maximum capacity again. Furthermore the battery remembers the low level at which it was previously charged and from that particular point it behaves like it was discharged. NiCD batteries suffered a lot in the memory malfunction than the NiMH mobile batteries.

Currently the mobile phones are built only by Lithium Ion or Lithium Polymer. Lithium Ion is the frequently used battery for mobile phones. The Lithium Ion batteries are much lighter, thinner and don’t have memory malfunction when compared to NiCD or NiMH batteries. But the major drawback is that they tend to slack roughly 10- 30% of their capacity.

Lithium Polymer batteries have a longer shelf life and have a 30% superior energy compactness when compared to Lithium Ion batteries. They are very expensive than Lithium Ion batteries and with the gradual manufacturing costs to go higher, may be lithium polymer batteries will loose their pre-eminence.

Developers are trying hard to bridge the gap between hi- tech modern mobile phones and the lack of necessary and efficient batteries to support these high end mobiles. Manufacturers are developing low voltage displays and are trying to execute more effective power and energy reduction programs in the latest mobile phones.

A lot of sincere effort and dedication will be needed to generate effective and efficient batteries for latest and modern cell phones.

Even though big giants like Nokia, Samsung or Sony Ericsson are trying their best to develop proficient batteries for mobile phones but it will take some time to achieve the desired results. Nowadays mobile users want the latest and hi- tech features in every handset and perhaps this will only deteriorate the shelf life of the mobile battery.