| Types of Cell Phone Batteries: | | | | advanced, safest and lightest cell phone battery ever |
| Nickel Cadmium (NiCad): The capacity, run time, and life | | | | manufactured. Li-Poly does not suffer from memory |
| span of all NiCad batteries are reduced by the | | | | effect, and will deliver up to 40% more battery |
| ?memory effect?, also known as voltage depression, | | | | capacity than NiMH battery of the same size. |
| in which the battery has to be discharged before | | | | Performance Advantages of Cell Phone Battery |
| recharging it, in order to avoid damage. NiCad batteries | | | | Models: |
| also use chemicals that are not environmentally friendly | | | | ?Slim? is a thin, light battery that still retains its capacity. |
| so they have to be disposed off carefully. Almost all | | | | ?Extended? has increased capacity, longer talk and |
| cell phone manufacturers have now stopped using | | | | stand-by time. ?Main? allows for simultaneous use of a |
| NiCad batteries and are replacing them with newer | | | | primary battery and a second, ?auxiliary? battery. |
| products such as Nickel Metal Hydride (NiMH) batteries. | | | | ?Super? can apply to ?Super-slim?, |
| Nickel Metal Hydride (NiMH): These batteries are of the | | | | ?super-performance? etc, and ?vibrational? allows for |
| same size with NiCad batteries but will run for | | | | vibration mode in phones that have the feature. |
| 30%-40% longer, and twice as much energy can be | | | | What is Initial Charge Cycle? |
| packed into a given unit. They are also less prone to | | | | A new cell phone battery is never fully charged. The |
| the ?memory effect? problem that older generation | | | | user will have to charge it for a full 14 to 20 hours for |
| batteries are, and they are also more environmentally | | | | the first time before it can be used effectively. This |
| friendly since they do not contain toxic materials like | | | | can be necessary for the first 2 ? 3 cycles. Cell phone |
| cadmium. NiMH are now one of the most popular | | | | batteries require a "break-in" period, and may not hold |
| battery types for cell phones but after a few hundred | | | | a full charge immediately. The battery may not power |
| charge cycles, the crystals inside become coarser | | | | up right away, may show false full charge (voltage), or |
| which can result in voltage drops (only) when in use. | | | | "Not charging". This is not unusual. The best thing to do |
| Lithium Ion (Li-Ion): The technology used to make Li-Ion | | | | is to charge the battery and leave it undisturbed for a |
| batteries is more advanced in comparison to the | | | | full 24 hours or so. |
| above two, and gives exceptional capacity for its size | | | | The Life of the Cell Phone Battery: |
| and weight. It does not have memory effect, and a | | | | Decline in the life of the cell phone battery will be |
| Li-Ion battery can deliver up to 40% more battery | | | | demonstrated by shorter talk and stand-by times. If |
| capacity than NiMH battery of the same size. Li-Ion | | | | regularly used, a typical cell phone battery lasts up to |
| batteries, however, are quite expensive and will not be | | | | 300 and 500 cycles. This also depends on the battery |
| compatible with older cell phones. | | | | type. For example, a Li-Ion will die quite abruptly while |
| Lithium Polymer (Li-Poly): Enclosed in plastic pouches | | | | you?ll notice a gradual decline in performance when a |
| instead of a metal can, this battery is the latest, most | | | | NiMH battery nears the end of its lifetime. |