What are the common sense of battery maintenance?

Storage: The battery that has not been used for a long time should be taken out of the electrical device and stored in a low temperature and dry environment (0-20°C) to prevent mixing with metal conductive materials. It is better to charge the rechargeable battery at about 50% before storage. When using it again, charge and discharge with a small current. Charging: Use low-current charging as much as possible, especially for batteries used for the first time. High-current chargers must have intelligent detection and protection functions. High-current charging will damage the battery life. Overcharging may cause damage to the battery (overheating, leakage, and explosion). Use it as much as possible. It should be charged in a normal temperature environment as much as possible, and the charging efficiency in a high temperature environment will decrease. Discharge: When the battery is discharged to a low voltage state that cannot work effectively, the power should be cut off in time. The minimum operating voltage of a nickel-hydrogen/nickel-cadmium single-cell battery is 0.8V. The lithium-ion battery is controlled by a protection device. Over-discharge can damage the battery. Pay attention to observation: During use, you should pay attention to the changes in the appearance of the battery, the heating of the battery during charging and discharging, the changes in the charging time and discharging time of the battery, and the use should be stopped if there is any abnormality. Prevent mixed-use: When using more than two batteries in a group, confirm the consistency of the batteries: the same brand, the same charge, and discharge history, and the same state of charge. Excessive differences in performance and state of charge between batteries will cause some batteries to overcharge and some batteries to over-discharge, causing accidents in severe cases. Performance recovery: complete charging and discharging once or twice every two to three weeks. Special note: The battery should be prevented from falling, impact, puncture, short circuit, water immersion, rain, and keep away from fire and children.