Reasonable lithium battery activation and charging and discharging methods

In the use of lithium battery should be noted that the battery after a period of time into a dormant state, at this time the capacity is lower than the normal value, the use of time is also shortened. But lithium battery is very easy to activate, as long as after 3-5 times of normal charge and discharge cycle can activate the battery, restore the normal capacity. Due to the characteristics of lithium battery itself, it has almost no memory effect. Therefore, the new lithium battery in the user's mobile phone does not need special methods and devices during the activation process. Not only in theory, but in my own practice, the "natural activation" of the standard method of charging from the beginning is the best.

For the lithium battery "activation" problem, many people say: charging time must be more than 12 hours, repeated three times, in order to activate the battery. This "first three charges to charge more than 12 hours," apparently from the nickel battery (such as nickel-cadmium and nickel-metal hydride) continuation of the argument. So this statement, it can be said, is misrepresented at the beginning. The charge and discharge characteristics of lithium battery and nickel battery are very different, and it can be very clear to tell you that all the serious formal technical data I have looked up emphasize that the charge and discharge will cause great harm to lithium battery, especially liquid lithium ion battery. Therefore, it is best to charge according to the standard time and standard method, especially do not exceed 12 hours of ultra-long charging. Generally, the charging method described in the operation manual is the standard charging method.

At the same time, long charging takes a long time and often needs to be done at night. In the case of China's power grid, nighttime voltage in many places is relatively high and fluctuates greatly. Having said that lithium batteries are delicate, they are much less resistant to fluctuations in charge and discharge than nickel batteries, which poses additional risks.

In addition, another aspect that cannot be ignored is that lithium battery is also not suitable for over discharge, over discharge of lithium battery is also very adverse.

Tools/materials

Lithium battery, nickel metal hydride battery, lithium battery charger, nickel metal hydride battery charger

Steps/methods

When should you start charging during normal use

This is often seen on BBS, because the number of charges and discharges is limited, so the battery should be used up as much as possible to recharge. However, I found an experimental table about charging and discharging cycles of lithium ion batteries. The data about cycle life are listed as follows:

Cycle life (DOD, 10%) : >, 000

Cycle life (100%DOD) : >200

DOD stands for discharge depth. As can be seen from the table, charging times are related to discharge depth, and the cycle life of 10%DOD is much longer than that of 100%DOD. , of course, if the conversion to the actual charge relative to the total capacity: * 1000 * 200 = 200 = 100100%, 10% of the latter to fully charge and discharge is still relatively good, but in front of the net friend of the idea to do some correction: under normal circumstances, you should have a reservation, according to the principle of battery remaining power run out to refill charging, but if your batteries in your expected to 2 days can't stick to two hours of time, you should start charging in a timely manner, of course, if you are willing to carry the charger to the office when BieLun again.