The characteristic of lithium batteries is that there are strict limits on the total voltage and the discharge cut-off voltage. Generally, the full charge voltage of a single lithium battery is 4.2V, and the discharge cutoff voltage is 2.8V. When the voltage drops below 3V, electronic products generally cause a power failure and when it drops to 2.8V, they turn off automatically.
Lithium batteries are charged with a constant current then a constant voltage, i.e. with a fixed current (e.g. 500 mA) at a voltage of 5 V. When the battery reaches 4.2 V, the current increases gradually. reduced until it cannot be loaded. Due to slow charging, the charger will stop charging at that time. Continuing to charge may cause heat or even an explosion.
The discharge cut-off voltage of the lithium battery is 2.8V.Once the battery voltage is lower than 2.8V, you should stop using it immediately. Indeed, once it is below 2.8 V, there is a discharge cut-off voltage. in fact, there is not much energy in the battery. If you continue to use it, the voltage will increase rapidly, resulting in irreversible loss of battery capacity.
For example, for a 1000 mAh lithium battery, this means that it starts discharging at a constant current of 1000 mA from the fully charged state, or 4.2 V. After continuously discharging for 1 hour, the voltage drops to 2.8 V. This indicates that the capacity of this battery is 1000 mAh. Of course, the battery still has energy at this time and can continue to discharge. For example, if you continue to discharge it for 10 minutes, the voltage will quickly drop to 2V. Although the battery may still be charged at this time, thetotal capacity is probably only 800 mAh. Discharging a single lithium battery with a voltage lower than 2.8V will cause irreversible damage to the battery.
It should be noted that the battery will discharge slowly even if it is not in use, which is commonly known as leakage or self-discharge. If a lithium battery is stored empty, that is, the voltage has reached 2.8 V during storage, self-discharge of the battery will cause the voltage to drop below 2.8 V, causing loss irreversible loss of battery capacity.
The correct way to store lithium batteries is therefore: if they are not used for a long time, at least half of the battery should be charged and discharged every six months. Of course, if you use the battery frequently, you don't need to protect it so carefully. Nowadays, the price of lithium batteries is getting lower and lower and they do not cost more.no longer constitute a valuable product.
The correct way to store lithium batteries is: if they are not used for a long time, at least half of the battery should be charged and discharged every six months.
If it is not used for a long time, it should be recharged every 2-3 months.
How long can the Maverick n1s electric vehicle lithium battery sit idle without being charged
Lithium batteries should be fully charged when not in use for a long period if stored without. power, the lithium battery will be damaged.
How to save cell phone batteries:
1. If the cell phone battery has been left unused for too long, it is best to contact the cell phone maintenance department to request it. battery activation, or you canuse it yourself. A DC voltage regulator adjusts the voltage to 5~6V and the current to 500~600mA to connect the battery in reverse. Note that you can release it as soon as you touch it and repeat up to three times. After this process, use the original charger to charge during the "adjustment period".
2. Do not expose the battery to high temperatures or intense cold. For example, during summer days, you should not place your cell phone in the sun to resist the scorching sun or take it to an air-conditioned place. room and place it in a place where the air conditioner blows directly. When charging, current flows back into the product and it is normal for the battery to become a little warm.
If lithium batteries are not used for a long time, they should be charged to 50% to 80% of their capacity and stored in a dry and cool environment. They can generallybe stored for 10 months to 1 year. However, if you want to ensure battery life, you should charge the battery every 3 months to avoid being stored for too long. The battery will be too weak due to self-discharge, resulting in the lithium battery remaining. a state of deep sleep, leading to irreversible loss of capacity and the inability to recharge the consequences of use. Precautions for charging lithium batteries As lithium batteries for electric vehicles become more and more common in the market, many people do not understand the correct charging method for lithium batteries for electric vehicles. Lithium batteries are now the first choice for electric vehicles. Lithium batteries are lighter. In terms of performance, lithium batteries are also more efficient and can be charged and discharged.Normally stored between -20°C and 55°C. °C, and their lifespan is that of lead acid batteries for electric vehicles, 3 to 4 times longer than the lifespan of batteries.