For lithium battery charging what is the correct way?

Source: 2020 - 03 - 29 and clicks: time for lithium battery is the proper way? New battery shall generally be activated, place the battery after a period of time, will enter a dormant state, when the capacity is lower than normal, use time is shortened, so demand was activated. Lithium battery activation method is very simple, as long as through the 3 - Five times the normal charge and discharge cycle can activate cells, back to normal capacity. Old cell 1. Old batteries charging method is the charging and discharging of the battery, rather than dead battery. The life of the lithium battery has nothing to do with the number of charging and discharging. It has no recall effect, no matter how much you charge fees, will not affect the amount of charge. Therefore, do not use the battery to fully charge, it is best when you can charge as much as possible to recharge the battery, charging time is 2 - 3 hours, of course, you don't always full. 2. The safety of the lithium battery charging voltage working voltage scaling of 2. 8 - 4. Below or above 2 v, the voltage scaling. In lithium ion battery become very unstable, even lead to failure. Need special charger to ensure the safety of cell size. The charger according to the current state of the battery active adjustment mode. 3. The correct charger when lithium batteries to use the special charger, to ensure the safety in charge. When the charger is working, it with stable current for the battery. With the increase of the battery voltage, the charger at the same time increase the charging voltage, speed up the charge. When the battery reaches 4. 2 v cutoff voltage, battery charging about 70% ( Not charging) 。 At this point, the charger continue to stabilize the voltage and gradually reduce electricity to recharge the battery. When the battery value less than 0. 1 a, the charger will stop charging when the battery voltage continues to rise. 4. Responsible for regular work for a long time use lithium battery, battery should be halved, stored in a cool and dry place. Charging registers are dangerous, the battery may be damaged, and not charging register, battery may be damaged and lose its function. In the process of storage, every 3 - 6 months to complete a charge cycle, and a power calibration. Lithium-ion batteries have how old? Lithium battery can charge 300 ~ 500 times, beyond the number can't use, of course, this is for reference only. Lithium battery life has nothing to do with the number of charging, and is associated with the cycles of charge and discharge, that is, from zero to full charge. Means everything in the battery charging cycle from full to empty, and then from empty to full, not as a single charge. Lithium-ion batteries used in the first day, for example, half of the battery, then charge. If you do so the next day, with half of the electricity, you have two power decline, it counts as a charge cycle, instead of two. In daily life, may take a few time charge to complete a cycle. Every cycle, the battery capacity will reduce a little. But the vibration is small, high quality of the battery after charging can keep the original capacity by 80%, many lithium-ion products can still be used in two to three years. Of course, when at the end of the lithium battery life, it will still be replaced by demand.