Do not let the positive and negative poles of the lithium-ion battery come into contact with metallic objects during use. Also, keep it away from metal items and hot areas when placing it to prevent a short circuit in the lithium-ion battery.

2. When not in use, lithium-ion batteries should be stored in a cool, dry environment, away from heat sources and direct sunlight. It is generally recommended to charge them to about 40% and store them at temperatures between 10-30 degrees Celsius, with a recharge approximately every six months.

Before charging and discharging lithium batteries, it is recommended to check the voltage of each cell. The voltage of cells within one month of manufacture is approximately 3.8V. The maximum voltage the cells can withstand is 4.25V, with a limit voltage of 2.75V. When the battery voltage exceeds 4.25V or falls below 2.75V, it may damage the cells' charging and discharging performance and safety, potentially leading to overheating, leakage, or swelling.

4. Lithium-ion batteries differ from nickel-cadmium and nickel-metal hydride batteries due to their poor aging characteristic. This means that after a period of storage, even without cycling, a portion of their capacity is lost. Fully charging the lithium-ion battery before storage can reduce capacity loss. The rate of aging varies with different temperatures and states of charge.

5. It's not advisable to overcharge or over-discharge during the charging process. We often like to keep charging our devices even after they're fully charged, in an attempt to extend their runtime. Prolonged overcharging and over-discharging can severely damage and degrade the performance of lithium-ion batteries, leading to extreme situations such as explosions. Therefore, it's best to stop charging once the battery is fully charged.