A customer using a patrol car on a cold day may find that one day it had 80 percent battery, and the next day it had only half. Why is that? In fact, this is not a leakage, but the battery in the winter night cooling, voltage decreased, then BMS automatically adjust the displayed power and range, it looks like there is no power, so we should pay attention to some charging.
Winter car should be slowly accelerated, avoid high speed, uniform speed is uniform, as far as possible to reduce rapid acceleration, rapid deceleration, fierce turning, sudden braking, in order to save energy consumption, gentle driving can help the owner to extend the range. Of course, if you don't want to run out of power and have to call a rescue, it's a good idea to plan your mileage well before you go, and allow for some leeway.
Charging an electric patrol car by parking it in a warm garage will improve the activity of the power battery, which will not only reduce the range loss, but also improve the efficiency of charging and save time. It is necessary to start charging again 1-2 hours before the car is used. At this time, the vehicle charging system will heat up the battery, which can improve the service performance of low temperature.
Winter batteries are affected by low temperatures, more or less affecting the range. Therefore, in the process of driving, we should also try to avoid excessive consumption of electric energy, affect the range. Specifically, if the electric patrol car is idle for a long time, it must be vigilant about the remaining power of the car, and it is forbidden to park in the state of power loss. Every once in a while start up or start up and charge the power battery to over 50%.
Since there is also weak current consumption in the vehicle's electrical system during parking, sitting the vehicle for a long time will lead to battery depletion. Therefore, for the long-term use of vehicles, the battery should be removed from the negative electrode, to avoid too fast consumption of battery power.