Cell Phone Batteries
Lithium Ion, Nickel Cadium and Nickel Metal Hydride batteries . . .
What kind of cellular batteries are in your phone? If you are a still using Ni-Mh or Ni-Cd batteries, you would be delighted to switch to Lithium Ion (Li-ion) batteries. Li-ion cellular batteries are about 30-50% lighter and 20-30% smaller in size. They can be charged faster, maintain charges longer, and don't suffer the "memory effect" from quick charges.

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Different types of Cell Phone Batteries
- Nickel Cadium (NiCd) - These cellular batteries are the oldest and most economical battery chemistry. To maximize the efficiency of these cellular batteries, they must be fully discharged before recharging. Otherwise, they will be prone to "memory effect" - a gradual reduction in capacity caused by repeated charging before the cellular batteries have been completely discharged.
- Nickel Metal Hydride (NiMh) - The Nickel Metal Hydride cellular batteries are becoming much more tolerant that the Nickel Cadmium. They can be recharged quickly and easily, do not suffer as much "memory effect" and do not need to be fully discharged before recharging.
- Lithium Ion (Li-lon) - Lithium Ion cellular batteries are the most advanced technology and offer the greatest energy density of the three chemistries. Li-lon cellular batteries do not suffer from "memory effect", do not have to be fully discharged before recharging, and deliver more energy per charge than NiMh or NiCd chemistry batteries. They offer maximum talk and standby times combined with the lightest weight chemistry commercially available today. As a result, LiIon cellular batteries are significantly more expensive than either NiCd or NiMH.
- Extended Lithium Ion (Li-lon) - Cellular batteries are measured in Milliamp hours (mAH) which determines the length of standby and talk time provided.
Benefits of Lithium Ion vs NiCd/NiMh cell phone batteries
- High Energy Density - The weight of lithium-ion cellular batteries are approximately half in comparison with a same capacity nickel-cadmium or nickel-metal hydride cellular batteries. Moreover, the volume of lithium ion batteries are 40 to 50% smaller than that of nickel-cadmium and 20 to 30% smaller than that of nickel-metal hydride cellular batteries.
- High Voltage - A single lithium ion battery cell has voltage of 3.7V is equal to either three nickel-cadmium or nickel-metal hydride battery cells connected in series. Hence, designers use less cell per battery to supply required power, resulting in lighter cellular batteries to customers.
- High Drain Capability - The lithium ion cellular batteries are capable of being continuously discharged up to 1.5CmA (CmA stands for the battery's one hour rate current).
- Pollution-free - The lithium ion cellular batteries don't contain any polluting substances such as cadmium, lead, mercury, etc.
- Non-metal Lithium - The lithium ion cellular batteries don't employ any metal lithium. They are not governed by aircraft transportation rules relating to carrying lithium cellular batteries in passenger airplanes.
- Long Cycle Life - Under normal conditions, the lithium ion cellular batteries have a life of more than 500 charge/discharge cycles. This means longer usage time for the battery.
- No Memory Effect - The lithium ion cellular batteries are free from the so-called memory effect, a phenomenon seen in nickel-cadmium & NiMh in which the apparent cellular batteries capacity decreases when shallow charge and discharge cycle are repeated.
- Fast Charge Capability - The lithium ion cellular batteries can be fully charged in 1 to 2 hours, using a constant-current/constant-voltage (CC/CV) type dedicated charger with a rated voltage of 4.20V per cell.
Note: If you are switching from a NiMh battery, Make sure that your charger is compatible with lithium ion cellular batteries.
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