When using lithium batteries, we know that the battery will enter a sleeping state after being placed for some time. So the capacity is lower than the original value, and the usage time is rereduced. For this, lithium batteries need to be activated, as long as 3-5 charge-discharge cycles can activate the battery and restore its rated capacity.
For the "activation" of lithium batteries, there are many expresssion: the charging time must be more than 12 hours, and must be repeat three times to activate the battery. It is a continuation way from nickel batteries (such as nickel-cadmium and nickel-metal hydride), which is wrong for lithium batteries. Charging and discharging characteristics of lithium and nickel batteries are very different. Over-charge and over-discharge will cause great damage to lithium batteries, especially liquid lithium-ion batteries. Therefore, it is best to charge according to the standard time and standard method, especially not to charge for more than 12 hours. Usually, charging is according to the standard charging method described in the manual. Greenbatt portable power station only 2 hours can be fully charged.
Another statement about charging is because the number of times charging and discharging is limited, the battery should be recharged when capacity runs out or the electronic device automatically shuts down. This charging method is only suitable for nickel batteries because it has a memory effect. Lithium battery such as portable power supply, power wall, and electric vehicles have no memory effect and better charge when only has 30% capacity. Charging in advance does not lose the "1" cycle, that is, the "0. x" cycle, and often this x will be very small.
To sum up, the esstional tips for charging lithium batteries are:
1. Charge according to standard times and procedures, even for the first three times.
2. When it prompts that the battery is low, you should start charging as soon as possible.
3. The activation of a lithium battery does not require any special method. It will be activated naturally during normal use. 12-hour charging and use of the lithium battery until automatically shut down are wrong.
