Buy a new cell phone lithium battery How long before the three
2010-07-28
Buy a new cell phone lithium battery How long before the three? Many of my friends think I should gain 12 to 14 hours, in order to activate sleeper cells in many companies is also true when shopping for consumers, he said. In fact, this is not a conclusion, and I personally believe that the lack of scientific basis for this view, in fact, after the first three charges and charge the same, three ~ four hours is sufficient.
First, we all know that when the lithium battery from overcharging, excessive loading and unloading or discharge current is too large, the capacity of the battery and has a tremendous damage and even cause cell deformation or explosion usually in the internal lithium battery is set to protect the batteries from the electronic circuit. When the battery from overcharging, excessive discharge current is too large, will be cut and the external connections. As some friends, as reflected in: cell phone charger in the trunk when a call comes automatically cause shutdown problems. In other words, the initial battery charge, low voltage, and when a call, the phone rings, it must maintain a certain amount of power. In the case of low voltage, battery current will increase, excessive current caused by the movement to protect the battery circuit to cut the battery and the external connection, causing the phone to automatically close.
Secondly, in order to improve the efficiency of the charge, lithium first constant current charging with high current to power 90%, the battery voltage, 4. 2V, it almost takes about 2 hours and then to a small constant load current until the battery is fully charged out of action until the internal protection circuit takes about half an hour, taking into account the battery, charger and differences of each product, the lithium battery charging 3-4 hours is adequate.
Given the failure of the phone battery indicator and other factors, when a green light when the charger can charge more than 1.5 hours. Another point to note is that lithium batteries will not impose long-term out to sleep, usually require activation before use. Usually, after 3-5 charge and discharge cycles can be activated. Known in the first two reasons, lithium batteries expect to sleep through the burden of shift time is meaningless. Because after the battery is full (about 2 ~ 4 hours), has been movement in the protection circuit of the lithium battery, cutting off the external power supply. As the role of protective circuits, long charged with lithium Although there is no damage, but the protection circuit will start the consumption of battery power, if the protection circuit to lose meaning, ranging from the idea of damage the battery and damaged the phone once again of the consequences of failure. Therefore, taking into account cell phones, lithium batteries and chargers, individual differences, charging three times before and after loading are the same, only 3 to 4 hours.
First, we all know that when the lithium battery from overcharging, excessive loading and unloading or discharge current is too large, the capacity of the battery and has a tremendous damage and even cause cell deformation or explosion usually in the internal lithium battery is set to protect the batteries from the electronic circuit. When the battery from overcharging, excessive discharge current is too large, will be cut and the external connections. As some friends, as reflected in: cell phone charger in the trunk when a call comes automatically cause shutdown problems. In other words, the initial battery charge, low voltage, and when a call, the phone rings, it must maintain a certain amount of power. In the case of low voltage, battery current will increase, excessive current caused by the movement to protect the battery circuit to cut the battery and the external connection, causing the phone to automatically close.
Secondly, in order to improve the efficiency of the charge, lithium first constant current charging with high current to power 90%, the battery voltage, 4. 2V, it almost takes about 2 hours and then to a small constant load current until the battery is fully charged out of action until the internal protection circuit takes about half an hour, taking into account the battery, charger and differences of each product, the lithium battery charging 3-4 hours is adequate.
Given the failure of the phone battery indicator and other factors, when a green light when the charger can charge more than 1.5 hours. Another point to note is that lithium batteries will not impose long-term out to sleep, usually require activation before use. Usually, after 3-5 charge and discharge cycles can be activated. Known in the first two reasons, lithium batteries expect to sleep through the burden of shift time is meaningless. Because after the battery is full (about 2 ~ 4 hours), has been movement in the protection circuit of the lithium battery, cutting off the external power supply. As the role of protective circuits, long charged with lithium Although there is no damage, but the protection circuit will start the consumption of battery power, if the protection circuit to lose meaning, ranging from the idea of damage the battery and damaged the phone once again of the consequences of failure. Therefore, taking into account cell phones, lithium batteries and chargers, individual differences, charging three times before and after loading are the same, only 3 to 4 hours.
Posted by usbphone