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In other words, the initial battery charge, low voltage, and when a call comes in, the phone to ring, it must maintain a certain power. In the case of low voltage, battery current will increase, excessive current caused by the battery protection circuit moves to cut off the battery and the external connection, causing the phone to automatically shut down. Second, to enhance the charging efficiency, high current lithium battery to first constant current charging to 90% of electricity, the battery voltage is 4.2V, this will probably take almost 2 hours; and then to a small constant current charging until the battery is fully charged action until the internal protection circuit, which takes about half an hour, taking into account the battery, charger, individual differences in each product, lithium battery to charge 3 to 4 hours is appropriate.

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Taking into account the error of cell phone battery and other factors show that when the charger shows green light, they can charge 1.5 hours more. Another point we should note that lithium batteries will not impose long-term placement dormant, normal use before the need to activate. Usually after 3 to 5 charge, discharge cycles can be activated. According to the first two reasons we know that expectations for the sleep of the lithium battery to charge through a long period of activation is meaningless. Because the battery is full (about 2 ~ 4 hours), lithium battery protection circuit has been movement, cutting off the external power supply. The role of the protection circuit, for a long time although the charge on lithium no harm, but the protection circuit will start the energy consumption of batteries, in case of loss of protective effect of the circuit, ranging from damage to the battery, while in damage to the phone, and then re-imagine the consequences of not . Therefore, taking into account cell phones, lithium batteries and chargers individual differences, charging three times before and after charging are the same, only 3 to 4 hours.

lithium batteries and chargers individual differences, charging three times before and after charging are the same, only 3 to 4 hours Recently, many readers wrote in to ask friends to call or how to properly give cell phone lithium battery charging problems, it seems this problem is a problem we are more concerned about, I am here to say something more: to buy a new cell phone lithium battery charging how long the previous three? Many of my friends think that we should charge 12 to 14 hours, so as to Dell inspiron 1520 Battery Dell 75UYF battery Dell D5318 battery Dell TC030 battery activate the dormant cells in many businesses is also true when consumers purchase said. Actually, this is not a conclusion, and I personally think that the lack of scientific basis for this argument, in fact, after the first three charging and charging are the same, there are 3 to 4 hours is sufficient. First, we all know that when the lithium battery from overcharging, over discharging, or charge and discharge current is too large, the capacity of the battery life and has great damage and even cause cell deformation or explosion, it is generally in the internal lithium battery electronic circuit are set to protect the batteries. When the battery from overcharging, over-discharge current is too large, will be cut off from outside connections. As some friends, as reflected in: cell APPLE A1185 Battery APPLE A1189 Batteryphone charger in the boot when a call came in automatic shutdown will cause problems.