The correct way to use lithium-ion batteries:
Lithium-ion battery operating environment: Lithium-ion batteries should be used in a clean, dry, and well-ventilated environment with a temperature of 0~40℃ and a relative humidity of no more than 75%. They should be kept away from corrosive substances and away from fire and heat sources.
Charging Precautions: Lithium-ion batteries must not be charged through the discharge terminal; they must be charged using the dedicated charger connected to a charging socket. When the charging indicator on the charger stops scrolling, promptly remove the charging plug to prevent overcharging.
Discharge precautions: Lithium-ion battery products have overcurrent protection. When the operating current of the electrical device exceeds the maximum output current of this product, the overcurrent protection circuit will activate, causing the electrical device to appear to malfunction.
Although lithium-ion battery products have output short-circuit protection, the positive and negative power outputs should not be frequently short-circuited during daily use.
Even if your electric vehicle's lithium-ion battery can last 2 to 3 days on a single charge, it's still recommended to charge it daily. This is because used lithium-ion batteries are in a shallow cycle state, and daily charging will extend their lifespan. Timely charging is also important because lithium-ion batteries undergo sulfation after discharge. Timely charging can remove minor sulfation. Therefore, charge the lithium-ion battery as soon as possible after use to keep it at a full charge. Periodically performing a deep discharge also helps "activate" the battery, slightly increasing its capacity. A common method is to periodically perform a complete discharge. A complete discharge is done by riding on a flat road under normal load until the first undervoltage protection signal appears. It's crucial not to use the battery during this first undervoltage protection signal, as it can severely damage the lithium-ion battery. Finally, try to use the original charger. Chargers from different lithium-ion battery manufacturers often have specific requirements; avoid changing chargers without proper knowledge.
To prevent over-discharge of your phone's lithium-ion battery, avoid using it when the battery level is below 20%, and especially avoid using it when it's below 5%, as this can cause irreversible damage. The ideal state for a lithium-ion battery is when it has about 40% charge remaining. Don't keep the battery at 100% for extended periods, as this can also shorten its lifespan. Avoid using the phone in extremely high or low temperatures. Charging at these extreme temperatures can severely damage the lithium-ion battery; high temperatures may cause it to explode, while low temperatures will significantly impact battery life. Avoid leaving the battery completely depleted for extended periods; if the battery remains completely dead for a long time, the phone may become unusable. Use the original phone charger, check the lithium-ion battery's lifespan and expiration date, and replace the battery if necessary. It's best to turn off or avoid using the phone while charging, as this is beneficial for the battery and allows it to charge more quickly.
The most critical storage conditions for lithium-ion batteries are temperature and humidity. Generally, room temperature has little impact on the state of lithium-ion batteries, but they should not be exposed to direct sunlight. High temperatures can easily cause model lithium-ion batteries to bulge or explode. Therefore, lithium-ion batteries are usually stored in light-proof and airtight metal or plastic boxes. If a single model lithium-ion battery has excellent discharge performance, it is also necessary to purchase a lithium-ion battery explosion-proof protective bag. These reinforced bags have a reinforcing mesh inside, which can prevent the lithium-ion battery from damaging other items in the event of a gas leak or explosion.
Correct charging method for lithium-ion batteries:
1. Charging
The safe operating voltage range for lithium batteries is 2.8~4.2V. Below or above this range, the lithium ions in the battery become very unstable, potentially causing accidents. To ensure the battery operates within this safe range, a dedicated charger is required. These chargers automatically adjust the charging method based on the battery's current state.
2. Activate
Before a lithium-ion battery charger starts charging, it supplies a small current to the battery while simultaneously detecting changes in battery voltage, and gradually increases the current until it reaches the set value. This process can be considered an activation or test charging.
3. Constant current transformer charging
The charger charges the battery with a constant current. As the lithium-ion battery voltage increases, the charger simultaneously increases the charging voltage to speed up the charging process.
4. Variable current constant voltage charging
When the lithium-ion battery reaches the 4.2V cutoff voltage, it has only been charged to about 70% (not fully charged). At this point, the charger continues to charge the battery with a constant voltage and a gradually decreasing current, stopping charging only when the current is less than 0.1A and the charger detects that the battery voltage is still rising.
