Now the mobile phone is used in lithium ion battery, so there is no memory effect, also does not need to be activated, the first charge does not need to like nickel as red more than 12 hours, only need to charge 4 hours or so, ion battery life only has a relationship with the number of charge cycles, lithium ion batteries can be recharged 1000 times or so. A standby time and use. However, before selling mobile phone said three charging time up to 12 hours. What's going on? 1, how to charge batteries should be paid attention to in the use of lithium batteries is a period of time after the battery is placed into the dormant state, the capacity is lower than the normal value, the use of time also shortened. But the lithium battery is easily activated, as long as 3 to 5 times the normal charge discharge cycle of the battery can be activated, restore the normal capacity. Because of the characteristics of lithium battery itself, determines that it is almost no memory effect. So the user The new mobile phone lithium battery in the activation process does not require special methods and equipment. Not only is the theory that, from my own practice, from the start with the standard method of charging the "activation" is the best way for lithium battery "activation", many that is: charging time must be more than 12 hours, repeated three times, in order to activate the battery. The charging to charge more than 12 hours "before three, apparently from the nickel battery (such as nickel cadmium and nickel metal hydride) inherited from the argument. So this argument can be said is the beginning of different misinformation. Very large charge discharge performance of lithium batteries and nickel batteries, and can be very clear to tell you, I have had access to all serious formal technical data are emphasized and charge off will discharge lithium batteries, especially liquid lithium ion battery Cause great harm. In accordance with the standard charge and therefore the best time and method of charging standards, in particular for not more than 12 hours of super long charging. Usually, the instructions on the mobile phone charging method, charging is suitable for the mobile phone standard method. In addition, the mobile phone lithium battery or the battery charger will automatically stop after a charge and there is no electricity nickel charger for 10 hours the so-called "trickle charging. That is to say, if your lithium batteries in full, but also put the charger white charge. And we can not guarantee the charge discharge protection circuit features and never change the quality of the battery so you no danger of anything going wrong. The battery will be at risk of long verge. This is our another charge against the chief reason. In addition to some mobile phone charging, over a certain period of time, if not remove the charger At this time, not only do not stop charging system, will start to discharge charge cycle. Perhaps the manufacturer has its own purpose, but apparently the battery / charger and mobile phone in terms of life is unfavorable. At the same time, long charging takes a long time, often at night, and to China's power grid situation in many places, the night of the voltage is high and volatile. As already mentioned, the lithium battery is very delicate, its ability than nickel in the charge discharge resistant fluctuation is much worse, so this brings additional risk. In addition, another can not be ignored is that the lithium battery is also not suitable for discharge, discharge of lithium batteries is also very unfavorable. This leads to the following questions. 2, in normal use when you should start charging in our forum, often can see this argument, because the number of charge and discharge is The limit, so it should be possible to use mobile phone battery rechargeable light. But I found a charge discharge cycle of lithium ion battery experiment table, on the cycle life of the data are listed as follows: the life cycle (10%DOD): >1000 (100%DOD) life cycle: >200 where DOD is the depth of discharge English. Seen from the table, can charge and discharge times the depth, the cycle life of 10%DOD when compared to the much longer 100%DOD. Of course, if the relative total capacity equivalent to the actual charge: 10%*1000=100100%*200=200, the latter is to fully charge and discharge better, but that in front of friends need to do some revision in: under normal circumstances, you should have a reservation in accordance with the remaining battery run out of charge of the principle of charging, but if your battery in your expected second days can not adhere to the day when When is the time to start charging, of course, if you are willing to carry the charger to the office. You need to charge and should be regarded as a different matter to cope with the upcoming events will lead to an important communication busy, even if there are a lot more than electricity in the battery, so you can just mention before charging, because you haven't really lost 1 "the battery cycle life, which is 0.x times, and often this x will be very small. The remaining battery power to run out the principle is not to charge you to go to extremes. A long argument and charging a wide spread like that," as far as possible the mobile phone run out of battery power, best use automatic shutdown. This is only the nickel batteries, the purpose is to avoid the occurrence of memory effect, unfortunately it also in the spread of lithium batteries today. It has been because the mobile phone low battery warning appears Still, do not charge to use the example has been used in automatic shutdown. The results of this example in the mobile phone in the later charge and no response in the boot, sent to customer service maintenance. This is because the battery due to excessive discharge caused by the voltage is too low, so do not have the normal charge and start-up conditions. 3, the correct approach on the mobile phone battery down, my most important problems in the use of charge and discharge of the lithium battery of the mobile phone that is: 1, according to the standard of charging time and procedure, even if it is to do so before three times; 2, when the mobile phone battery is too low when prompted, should be timely start charging; 3. The activation of lithium batteries do not need special method, the normal use of lithium battery in the mobile phone will naturally activated. If you insist on using the spread of "three 12 hour long activation charge" method is not practical There will be effect. Therefore, all 12 hours long pursuit of the lithium battery charge and mobile phone use automatic shutdown procedure, are wrong. If you are in accordance with the wrong doing, please correct them in time, maybe it isn't too late. Of course, support and control circuit of good quality in the mobile phone and the charger itself under the protection of lithium battery or a guarantee. So to understand the rules of charging is the key, and in some cases can also make some concessions. You must find such as mobile phone charging in your sleep at night before, you can start charging at bedtime. The key problem is that you you should know what is the right thing to do, and don't follow the wrong argument to do.