1.The Problem of Not Charging the Battery:
Leaving the battery uncharged for an extended period can lead to irreversible sulfate formation on the battery plates, causing issues. Important properties of sulfate plates include: rapid voltage increase during charging, premature gas evolution, and quick temperature rise; rapid voltage drop during discharging and reduced capacity.
2.Reasons for Irreversible Sulfation of Battery Plates:
*Prolonged storage with high self-discharge rate and lack of maintenance or charging.
*Continuous or frequent deep discharging or over-discharging at low currents.
*Failure to recover supply within 24 hours after excessive discharging.
*Overcharging or frequent undercharging.
*Heavy current operation without recharging the battery.
*Extreme environmental temperatures, either too high or too low, can affect battery performance. For example, for every 10-degree increase in temperature, the sulfation rate doubles.
*Insufficient electrolyte. Low water level due to excessive evaporation or accidental leakage of the electrolyte can lead to sulfation at the top of the plates.
Proper Battery Storage:
Batteries need to be cared for like any other device. Regular maintenance is crucial. If an electric vehicle is left unused for more than a week, attention should be given to battery charging and discharging. It is also essential to prevent the above-mentioned situations from occurring.
Finally, Xiaobian would like to remind everyone once again that electric vehicle batteries should not be left in a fully charged state for extended periods, and it is strictly prohibited to store them without charging during power outage situations.
