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