Lithium batteries do not have a memory effect, the first charge does not need to be filled. Most of the current electronic products use lithium batteries, while a few years ago most electronic products use nickel-cadmium batteries, the memory effect of these two types of batteries is different. The so-called memory effect refers to the first few charging, if not full to stop, then later charging, the battery will remember the capacity of the previous charge.
Lithium batteries do not have memory effect and do not need to be charged for the first time.
Li-ion battery does not have a memory effect, the first charge does not need to be filled for 10-14 hours, the first few times full full put the practice is only for the management of the battery capacity of the electrical equipment. Later in the process of use can also be charged with the release, will not affect the capacity.
For the previous lead-zinc, cadmium-nickel and other (memory effect) batteries, the first charge needs to be filled for 6 to 12 hours, and need to be released and filled. For the current use of nickel-hydrogen batteries, lithium batteries (memory effect is very low), especially for lithium batteries, do not need to be released before charging, not full can also be used. And the battery itself has an electronic protection circuit, when the electricity is full automatically disconnected, usually charged 2, 3 hours on.
Lithium batteries do not have a memory effect, can be charged at any time, in order to reduce the number of recharging and deliberately fill the battery after exhaustion, does not extend the battery life, but has a negative impact on the life of the battery. In addition, if the phone is used to automatically shut down, the lithium battery will be discharged excessively resulting in low internal voltage, may not be able to turn on and charge the situation. Therefore, lithium battery charging is about "less food and more meals", frequent shallow charging and discharging will help extend its life.
Precautions for the first charge of lithium battery
1, we recommend that you avoid waiting until the battery power is less than 20% and then charge the battery, excessive discharge will lead to faster battery loss. You can charge as you go to extend the life of the battery.
2, there are many users often charge the phone is still on, in fact, this will easily harm the life of the phone, because in the process of charging the phone's circuit board will heat up, at this time, if there are external calls may produce instantaneous reflux current, causing damage to the internal parts of the phone.
3, do not leave the phone idle for a long time, the battery should be fully charged from time to time. The phone is not used for a long time, not charged, the battery power will be completely consumed, which will lead to charging abnormalities or can not be charged.
4, the life of the lithium battery is determined by the number of repeated charging and discharging, so you should try to avoid charging when the battery has a residual charge, such a charging situation is going to shorten the life of the battery. The phone should not be turned off for more than 7 days, first of all, the phone's battery should be completely discharged disposal, wait until the electricity is sufficient after use.
5, lithium batteries or chargers in the battery will automatically stop charging, and there is no nickel charger called "trickle" charging that lasts more than 10 hours. In other words, if your lithium battery is full, put on the charger is also a white charge.
6, the battery will stop charging inside the phone after the battery is full, but the phone will continue to turn on charging after the standby power drops, you are advised to remove the charger in time to avoid prolonged charging, otherwise the battery may be damaged and shorten the life of the charger.
The above is about whether the lithium battery charging needs to be full and charging precautions. Different battery products need different methods to charge, be sure to use according to product instructions. Early NiCd and NiMH batteries require similar "activation". These batteries will produce a "memory effect", charging in a state of incomplete discharge, easy to overcharge the battery, over time, the user will feel that the electricity will soon run out.
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