18650 lithium batteries in the correct use method

Time:2019/10/7 13:57:25

Should pay attention to in the use of lithium batteries is, for a period of time after the battery is placed into hibernation, the capacity is lower than the normal value, the use of time is also shortened. But the lithium battery is easily activated, long after the 3 - 5 charge discharge cycles of normal battery can be activated, the resumption of normal capacity. Because of the characteristics of lithium battery itself, its decision almost no memory effect. Therefore, the new lithium battery in the mobile phone users in the activation process, does not require special methods and equipment. Not only in theory is that, from my own practice, from the beginning of the method of charging standards of the "natural activation" mode is the best.

For lithium batteries, "activate" the problem, many say 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" is the first three, obviously from the nickel battery (such as nickel cadmium and nickel metal hydride) inherited from the argument. So this statement, can be said that the beginning of miscommunication. There was a big difference between the charging and discharging characteristics of lithium batteries and nickel battery, but also can be very clear to tell you, I have had access to all the serious official stressed that all technical information overcharge and over discharge of lithium battery, in particular liquid lithium ion battery causing great harm. Charge and therefore the best time and in accordance with the standard method of charging standards, especially not more than 12 hours of super long charging. Usually, the use of charging method manual describes the standard, is the method of charging.
At the same time, long charging takes a long time, often at night, and to China's power grid situation, at night in many parts of the voltage is higher, and volatile. As already mentioned, the lithium battery is very delicate, ability than nickel in the electric charge and discharge the fluctuation of resistance is much worse, so this brings additional risk.
In addition, another can not be ignored is the lithium battery is also not suitable for over discharge, over discharge of lithium batteries is also very unfavorable.
Tools / raw material
Lithium batteries, nickel hydrogen batteries, lithium-ion battery, Ni MH battery charger
Procedure / method
In normal use, should start charging
The forum can often see this statement, because the number of charging and discharging is limited, so should the battery rechargeable light as possible. But I found a charge discharge cycle of lithium ion battery cycle life experiment table, a data are listed as follows:
Life cycle (10%DOD): >1000
Life cycle (100%DOD): >200
Where DOD is the depth of discharge English abbreviations. Seen from the table, charge and discharge times the depth, the cycle life of 10%DOD than the much longer 100%DOD. Of course, if the relative total capacity equivalent to the actual charge: 10%*1000=100100%*200=200, fully charge and discharge of the latter was better than some, but the argument in front of friends to do some revision: under normal circumstances, you should be wary of remaining battery run out of charge of the principle of charging, but if your battery is in you second days may not persist for two hours, you should promptly start charging, of course, if you're willing to carry that office should be regarded as a different matter.
You need to charge is expected when not convenient or conditions do not allow charging to cope with, even when the battery is a lot more than power, then you may advance charge, because you haven't really lost "1" single charge cycle life, also is the "0.x" times, and often this x will be very small.
Remaining battery run out of charge principle does not want you to go to the extreme. A statement and long charging a wide spread like, is to "try to put the battery runs out, the best use automatic shutdown". This is only the nickel batteries, the purpose is to avoid memory effect occurs, unfortunately it also on the spread of lithium batteries today. Because of the battery due to excessive discharge and cause the voltage is too low, so do not have the normal charge and start-up conditions.
The correct approach for lithium batteries
To sum up, my most important for lithium batteries in the charging and discharging cue is in use:
1, according to the standards of the time and procedure of charging, even to do so before three;
2, when the power is low, should be timely start charging;
Activated 3, lithium batteries do not need special method, in normal use lithium batteries will naturally activated. If you insist on using the spread of "three times before 12 hours long activation charge" approach, in fact will not have effect.
Therefore, all 12~16 hours long pursuit of the lithium battery charge and practices used in automatic shutdown, are wrong. If you used to be done in accordance with an error saying, please correct them in time, maybe it isn't too late.
END
Matters needing attention
The original charger itself protection and control circuit quality is good, the protection of lithium battery or a guarantee. So the charge rule understanding is the key, and in some cases can also make some concessions. For example, do you think the battery must be charged when you sleep the night before the words, you can start charging at bedtime. The crux of the problem, you should know what is the right thing to do, and don't follow the wrong to do that.