Cell phone batteries use common sense and charging techniques 1, mobile phone battery consists of three parts: batteries, protection circuits, and the shell. All the current mobile phone battery for lithium-ion battery (non-standard situations often referred to as the lithium battery), cathode material for lithium cobalt oxide. Standard discharge voltage of 3.7V, the charge cut-off voltage of 4.2V, the discharge cut-off voltage of 2.75V. The power unit is Wh (watt-hours), to replace the mobile phone battery standard unified discharge voltage for 3.7V, can also be used mAh (milliamperes). The conversion between these two types of units in the mobile phone battery is: Wh = Ah x 3.7.
Overcharge, over discharge and short circuit would seriously impair the performance of the battery, and may lead to the use of risk. To this end, cell phone batteries generally have a slender protection circuit board, used to prevent these risks. 3, the charger is divided into straight and backlash. Straight to 220 AC power is converted to 5V DC input charging circuit step-down into the mobile phone by the phone to the battery, usually buy the phone there will be distribution. Charger and the battery is connected to the mains is converted to the required voltage to the battery. If you want to use the charger, please try to select the original or good quality products. Charging circuit in the cradle, if the quality is poor, there is risk of charge. 5, the lithium-ion batteries have no memory effect, but inert, long-term use may have a passive phenomenon, rushed to put the best performance can be restored several times. 6, before charging, lithium batteries do not need special discharge. Some quick charger when the lights change, only 90 percent full, the charger will automatically change to trickle charge the battery is full. In general, as long as the display is full, that can be removed. 7, without prejudice to the battery life, charging is best to slow enrich my knowledge; time need not be too long. 8, cell phone batteries self-discharge, over discharge can damage the batteries, cell phone
batteries do not long, and should ensure that the battery has a certain power. 9, even though our phone within the coverage area, but the phone off when charging, the phone has been unable to accept and make calls. At this point, we can use the phone did not pass transfer function, the phone is moved to the side of the fixed telephone in order to prevent the loss of calls, this method is also applicable for the phone is not network coverage within the region or a weak signal can not be connected. 10, do not expose the battery to heat or cold, like a dog day weather, should not phone in your car, to withstand the scorching sun exposure; or get air-conditioned rooms, on the air-conditioning blowing straight. When charging, the battery a little heat is normal, but you can not make it to weather the high-temperature "suffering". To avoid this from happening, it is best at room temperature for charging is the machine and do not cover anything. 11, the charge is not time as long as possible, filled with inferior battery protection circuit shall be made to stop charging. When unused for long periods so that the separation of the battery and phone. Should be noted that the use of lithium, the battery into hibernation place for some time, and lower than normal capacity, the use of time has also come to shorten. However, lithium batteries can easily activated, the battery can be activated as long as 3-5 times the normal charge-discharge cycles back to normal capacity. Battery lithium own characteristics, it is almost no memory effect. The new lithium battery in the user's mobile phone during the activation process does not require special methods and equipment. Not only in theory, from my own practice, from the outset, the standard method of charging that "activation" is the best way. More phone tips: www.suntekstore.com