How to maintain the enclosed electric patrol car?

The battery of electric patrol car is strictly forbidden to be in power-off state when stored. The state of insufficient power means that the battery is not charged in time after use. When the battery is stored in a state of insufficient electricity, it is easy to be sulfated, and the lead sulfate crystal adheres to the electrode plate, which will block the ion channel, resulting in insufficient charging and decreased battery capacity. The longer the battery is idle, the more serious the battery damage is. Therefore, when the battery is idle, it should be charged once a month, which can better keep the battery healthy. ? Attention should be paid to the charging of electric vehicles: in the process of use, the charging time should be accurately grasped according to the actual situation, and the charging frequency should be grasped with reference to the usual use frequency and mileage. When driving normally, if the meter indicates that the red light and yellow light are on, it should be charged; If only the red light is on, please stop running and charge it as soon as possible, otherwise the excessive discharge of the battery will seriously shorten its life. After being fully charged, charge the battery for a short time, not too long, otherwise it will be overcharged and the battery will heat up. Overcharging, overdischarge and undercharge will shorten the battery life. Generally speaking, the average charging time of a battery is about 10 hour. If the battery temperature exceeds 65℃ during charging, please stop charging.