Proper Lithium Battery Charging

1. To achieve optimal performance from a new battery quickly, it can be fully charged and discharged three or more times. However, this is not strictly necessary. If the manual recommends this, it should be done accordingly to ensure proper lithium battery maintenance.

2. Choose a charger from an authorized manufacturer and use it according to the instructions. When the charging indicator on a fast charger changes, it is 90% charged. Wait until the battery is fully charged.

3. The operating temperature range is between -20°C and 60°C. Therefore, it is best to charge at room temperature and not cover the phone with anything else while charging.

Scientific Discharge of Lithium Batteries

1. The discharge current should not be too high.

Excessive current leads to internal heating of the lithium battery, which can cause permanent damage. The higher the discharge current of the lithium battery, the lower its discharge capacity and the faster the voltage drop.

2. Never over-discharge.

To optimally protect the battery, the discharge of a lithium battery should not exceed 80% of its capacity. Internal electrical energy storage in lithium batteries occurs through a reversible chemical change in the electrochemistry. Excessive discharge leads to an irreversible chemical change. Therefore, lithium batteries are particularly susceptible to over-discharge. Once the discharge voltage drops below 2.7 V, the battery can be scrapped. The lithium battery in a mobile phone is equipped with a protection circuit. Before the voltage drops so low that the battery is damaged, the protection circuit is activated and the discharge is stopped.

3. Avoid High-Power Discharge

When a lithium battery is discharged, Li+ is released from the negative electrode and migrates through the electrolyte to the positive electrode. The positive electrode is then in a lithium-rich state. This means that the battery discharges during normal use, while the opposite occurs during charging. The voltage drop of a lithium battery decreases more rapidly with increasing discharge rate. However, the sooner the final voltage is reached, the slower it will decrease at the end. Therefore, low-rate discharge characteristics are better than high-rate discharges. Avoid high-power discharges.

∠ Proper Storage of Lithium Batteries

1. The optimal storage temperature is between 4°C and 35°C. Do not expose the battery to high temperatures or extreme cold. An activated lithium battery is typically in a dormant state for at least half the time. Therefore, maintaining a suitable temperature is crucial for the proper care of lithium batteries. The most common and important points are:

2. Lithium batteries that have not been used for an extended period should be charged and discharged once a month, similar to the initial activation procedure. A performance calibration should also be performed once a month. Since the electrodes of lithium batteries that have not been used for a long time become passivated, the electrons within the battery should be flowing freely. Passivation damages the electrode structure and thus reduces the battery's lifespan. It is best to keep the battery at a half charge.

3. Storage in areas with strong static electricity and strong magnetic fields is prohibited, as this can easily damage the battery's protective device and create hazards.

4. If the battery emits unusual odors, heat, discoloration, deformation, or exhibits any other abnormalities during use, storage, or charging, immediately remove the battery from the device or charger and discontinue use.

5. The electrodes of discarded batteries should be wrapped with insulating paper to prevent fire and explosions.