3.7v 2200mah 18650 lithium battery

　　How to maintain 3.7v 2200mah 18650 lithium battery if they are not used for a long time?

　　Lithium iron phosphate batteries have no memory effect and can be charged at any time, but be careful not to over-discharge the lithium battery, as over-discharge will cause irreversible damage. When the machine prompts that the battery is low, it is necessary to charge the battery immediately. In daily use, freshly charged 3.7v 2200mah 18650 lithium battery should be left aside for half an hour, and the charging performance should be stable before use, otherwise the battery performance will be affected. When not in use, remove the battery and store it in a dry and cool place.

　　Operating environment of 3.7v 2200mah 18650 lithium battery: The charging temperature of 3.7v 2200mah 18650 lithium battery is 0℃~45℃, and the discharge temperature of 3.7v 2200mah 18650 lithium battery is -20℃~60℃. Do not mix lithium iron phosphate batteries with metal objects to prevent metal objects from touching the positive and negative electrodes of the battery, causing a short circuit, which may harm the battery or even cause danger. Do not knock, acupuncture, step on, modify, or expose 3.7v 2200mah 18650 lithium battery to the sun, and do not place batteries in microwave, high-voltage, or other environments.

　　Use a regular lithium battery charger to charge the battery. Do not use inferior or other types of battery chargers to charge the lithium battery. Lithium iron phosphate batteries should not be charged to 50% to 80% for a long time, and should be removed from the instrument and stored in a dry and cool environment. The battery should be charged every 3 months to prevent the battery from being stored for too long. Discharge causes the battery to be too low, resulting in irreversible capacity loss.

　　The self-discharge of 3.7v 2200mah 18650 lithium battery is affected by ambient temperature and humidity. High temperature and humidity will accelerate the self-discharge of the battery. It is recommended that the battery be stored in a dry environment between 0°C and 20°C. When not in use for a long time, the lithium battery should be taken out and placed in a cool, dry place. Never freeze to avoid moisture corrosion. Avoid use in hot cars. If stored for a long time, charge the battery to 40% and then leave it alone.

　　If the lithium battery is not used for a long time, it should be stored scientifically and rationally to avoid damage to the lithium battery and shorten its service life. The self-discharge rate of 3.7v 2200mah 18650 lithium battery in one month is generally 5-10%. Generally speaking, it is not a big problem if it is not used for one or two months, but it is best to recharge it, because the battery capacity will drop a lot if it is not recharged for a long time. When a lithium battery is left with low or no power for a long time, the internal resistance of the battery to the movement of electrons increases, resulting in a smaller battery capacity and the possibility of not being able to be charged.

　　How to activate a lithium battery that has not been used for a long time? 3.7v 2200mah 18650 lithium battery that have just been used usually have remaining power, so do not charge them at this time. Put the battery into the product and use it normally until the power is so low that it cannot be turned on at all. For the first time charging, it is best to use the original lithium battery charger, and it is better to turn off the phone to charge. Many people do not turn off the phone to charge for convenience, which is not conducive to activating the lithium battery capacity. Continuous charging for more than 12 hours and less than 15 hours. If it says it is full, do not unplug it and keep it charging.

　　After being fully charged for the first time, it will not turn on if used normally. You can continue with step 2. Completely discharge and completely charge (i.e. repeat process two and process three) three times. At this time, the lithium battery is successfully activated and can reach the best capacity state.

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