The misunderstanding of Lithium battery charging method

1. Lithium battery charging method -- how to charge a new battery

The most popular method of charging new batteries is "charging the first three times for more than 12 hours to activate the battery", but is this correct? Or is it wrong? The answer is wrong

Reason one: this kind of statement continues from nickel battery, but the charge and discharge characteristics of lithium battery and nickel battery are very different, for lithium battery, over discharge and over charge will bring serious damage to the battery, so it is best to charge according to the standard time and standard method, remember not to charge more than 12 hours.

Reason 2: lithium battery will automatically stop charging after it is fully charged, but if it is always placed on the charger, discharge - charging cycle may occur. The characteristics of battery charging and discharging protection circuit may change, and the battery is at the edge of danger.

Ii. Lithium battery charging method -- how to charge it in normal use

For lithium battery in normal use should be how to charge this issue, opinions vary, some friend said "used to automatically shut down, there was no electricity left recharge", but some friend said "increases with the increasing in charge", for that matter, small make up has been used in practice with the first action, but find it is not necessary to do so, why? Let's have a look

Reason 1: the life of lithium battery is generally 300~500 charging cycles, assuming that the power provided by a complete discharge is 1Q, regardless of the reduction of the power after each charging cycle, lithium battery can provide 300Q~500Q of power. If you charge it 1/2 at a time, you can charge it 600-1000 times. If you fill it up a third of the time, you can fill it 900 to 1,500 times; If the charging is random, the frequency is uncertain. In short, the total power that can be added to 300q-500q is constant. Therefore, the life of lithium battery is related to the total charge amount of the battery, but has nothing to do with the number of charges. Deep discharge or shallow discharge does not have much impact on the life of lithium battery.

Reason 2: in fact, shallow discharging and shallow charging are more beneficial to lithium battery. Only when the power module of the product is calibrated for lithium battery can deep discharge and deep charge be necessary. Therefore, in the process of daily use, cannot be stuck to with photoelectric recharging, can be used with charging, in order to facilitate the first.

Iii. Lithium battery charging method -- matters needing attention

Note 1: avoid charging when the temperature is too high

If charge temperature is above the operating temperature (35 ℃), lithium battery power will be reduced, namely full electric power supply time of the cases, can cause damage to the battery quality, reduce the battery life.

Note two: avoid charging when the temperature is too low

If charge at low temperature (4 ℃), when the battery power will be reduced, and even without electricity, but with high temperature environment is different, is not permanent damage, when the temperature rises to the appropriate battery will also return to the previous state.

Note 3: regular use

Regular use will keep the electrons in the lithium battery in a flowing state, which is conducive to the extension of its life. If you don't use it often, remember to charge the lithium battery once a month.