Depending on the manufacturer, size or shape and function of the phone, the phone runs on a variety of batteries.There are basically four types of cell phone batteries: lithium polymer, lithium ion, nickel-metal hydrogen and nickel-cadmium.Lithium polymer is the latest type with the latest technology applied in DC power supply.This type of battery is light in weight and will not explode even if perforated.The battery element is encapsulated in a platic bag with no memory defects.This battery has a life span of 50 times that of the thanNickel metal hydrogen battery.Lithium ions also have memory efficiency and a longer life span than nickel metal hydrogen batteries, but they are very light.They tend to be expensive and are only suitable for new models of mobile phones.Most Lithium-The ion battery uses afast charging technology to quickly charge the phone with a charging capacity of up to 80%, and then slowly fill the phone with electricity in about two hours.Nickel-metal hydroxide also has memory efficiency, with a duration of about 40 times longer than the NIM type.This type of battery is good for people who need a quick charge, and if used with a car charger, it can be fully charged within 1 hour.The special formula allows the energy concentration in a single package to sometimes be twice the power of nickel and cadmium.This type is the first choice for many mobile phone users because it lasts for a long time and is cheap.Again, they are notToxic and attractive to environmental activists.Nickel-cadmium is the oldest type with many memory defects.Another serious drawback is that they have to be fully discharged before you charge again, otherwise you may damage them irreversible.Similarly, this type is highly toxic due to the presence of nickel and cadmium, and handset manufacturers are phasing out this type.Battery life is usually between 300 and 400 charging cycles.This is because whenever you charge your battery, the battery loses some of its effectiveness, resulting in a power drop.If you consider that the price of the Nokia 3310 battery can be as high as $24, the cell phone battery can be very expensive.95.Do not have the material stuck on the terminals, as this will cause the battery to lose contact with the terminals, resulting in improper connection.Keep the batteries in the shade and allow them to adapt to room temperature before charging, as a sharp rise in temperature during charging can damage the battery.The life of the phone depends on the effectiveness of the battery.Knowing how they operate and how to take care of them can make sure your mobile device is working well over the years.