The working principle of lithium-ion batteries is simply to charge them to store energy and discharge them to convert and release other forms of energy. They are idle when neither charging nor discharging. Therefore, the correct use of lithium-ion batteries can be broadly categorized into three aspects: correct charging, correct discharging, and correct maintenance.
Be mindful of timing and avoid overcharging. Do the right thing at the right time. While lithium-ion batteries possess excellent electrochemical performance, anything deviating from equilibrium poses a safety risk. Specifically, charge when necessary. Use the same charger/cable for different brands and types of electrical appliances, ensuring compatibility. Once charging is convenient, users should ensure the battery always has a usable charge level. Normally, devices will alert you when the charge is low, prompting you to recharge promptly. While low charge won't cause immediate safety issues, overuse can damage the battery structure over time. Fully charge only. Lithium-ion battery cells are composed of numerous components. New batteries are fine, but after prolonged use, some components may degrade, leading to overcharging safety risks.
Correct Discharge Method for Lithium-ion Batteries
Charge promptly to prevent over-discharge. Ordinary lithium-ion battery users are unaware of the dangers of over-discharge because there are usually no reported safety incidents related to it. Furthermore, some even believe that periodic deep discharge is beneficial for battery performance maintenance. This is not the case, as the memory effect of lithium-ion batteries is negligible; there is no such thing as eliminating the memory effect through deep discharge. Theoretically, deep discharge of lithium-ion batteries will result in a longer overall cycle life, but the risk is that excessive discharge will lead to excessively low battery voltage, preventing normal recharging. Between two evils, choose the lesser; a shorter lifespan is better than no lifespan at all.
