Do we still need to charge new battery for 12 hours on first charge?

"Now the mobile phones are all lithium-ion batteries. Do we still need to charge new battery for 12 hours on the beginning?" The public is generally unaware of this problem.

On May 24, Mr. Liu from Nanchang City came to the mobile hall for consultation. A few days ago, he bought a new mobile phone. The sales clerk told him that the first three mobile phone batteries had to charged for 12 hours. He did not know if it was correct.

Jiangxi mobile technicians told reporters that the first three charges of 12 to 14 hours are very necessary for the early nickel-cadmium batteries. At the current technical level, the activation of mobile phone batteries requires consumers to complete them themselves. However, most mobile phones now use lithium batteries. The activation of lithium batteries must pass the charging process without charging protection. For consumers, the chargers currently available are all equipped with a charging protection function. When the battery charged to a certain standard, the charging process automatically stopped. The so-called 12-hour activation is impossible. Therefore, the original mobile phone battery we purchased has activated before leaving the factory, which is "live" and does not need to charge for 12 hours. Therefore, if you buy a new mobile phone or a new battery, you can use it normally and charge it normally.

In general, in order to improve the efficiency of charging, the lithium battery first charged to about 90% of the battery power with a large constant current. This process is generally about two hours, and then charged with a small constant current until the battery is almost full. The entire charging process is about 5 hours. When fully charged, the charger will automatically stop charging to protect the battery. It is not only meaningless to continue charging, and it will damage the battery if the protection circuit fails.

Therefore, in order to ensure battery life of mobile phone, you should follow the charging method and charging time provided in the user manual.

The page contains the contents of the machine translation.