With the arrival of winter and continuously decreasing temperatures, the operation and maintenance of new energy vehicles in low-temperature environments is particularly important.
To ensure driving safety, maintain operational efficiency, and extend vehicle lifespan, we have compiled the following winter driving guide for new energy heavy-duty truck users. Please read it carefully and refer to it for implementation.
01 The Impact of Low Temperatures on Range and Battery
In cold environments, the power battery consumes some electricity for self-heating, leading to increased vehicle energy consumption and a decrease in driving range (this will gradually recover as the battery temperature rises). It is recommended to plan routes and mileage reasonably before traveling, reserve sufficient battery power, and try to keep the battery level above 20%. In addition, after starting the vehicle in winter, it is recommended to preheat it to a suitable temperature before driving, which helps improve battery performance and extend its lifespan.
02 Charging Precautions
In low-temperature environments, the battery’s allowable charging current decreases, and some electricity will be used for battery self-heating, thus potentially extending the overall charging time. To improve charging efficiency, it is recommended to charge the vehicle promptly after use, when the battery temperature is higher, resulting in faster charging.
Please note the following:
(1) Before charging, check that the charging gun head is dry to prevent condensation or ice buildup, which could pose a safety hazard.
(2) If the battery level drops below 30% while the vehicle is running, it is recommended to recharge it promptly.
(3) Fully charge the vehicle every three days to help maintain a good battery condition.
(4) If the vehicle has not been used for a long time, it is recommended to charge it when the battery temperature is suitable.
03 Vehicle Starting and Power-Off Procedures
Before driving, please confirm that the instrument panel self-check is complete and there are no fault indications. Please note the following during operation:
(1) If high-voltage power-on fails three times consecutively, please wait 5 minutes before trying again to avoid damage to high-voltage components.
(2) After parking, first turn off the ignition switch, and then turn off the main power switch after 30 seconds.
(3) When powering on the high voltage, turn the key to the START position and hold it for 3–5 seconds until the high-voltage indicator light illuminates before releasing it.
(4) After the vehicle is powered off, wait at least 10 seconds before attempting to power it on to prevent the high-voltage system from failing to start properly. Special Reminder: The drive, steering, and braking systems of new energy vehicles all rely on electronic control. It is strictly forbidden to turn off the ignition switch while driving to avoid accidents.
04 Driving Safety in Rain and Snow
In rainy or snowy weather, please control your speed, maintain a safe distance, and avoid sudden acceleration, deceleration, or sharp turns. If necessary, please install snow chains on your tires.
Special Reminder for Towing Vehicle Users: When driving on icy or snowy roads, please turn off the energy recovery function to prevent the vehicle from fishtailing.
05 Recommendations for Long-Term Vehicle Storage
If the vehicle is to be idle in cold weather, please ensure the battery is charged to at least 50%. For long-term storage, it is recommended to maintain the battery charge between 40% and 80%.
During long-term storage, the power battery should be balanced every three months and before being put back into operation to optimize battery performance and lifespan.
In addition, vehicles experience static power consumption and low-voltage battery self-discharge. If the vehicle is not used for a long time, it is recommended to disconnect the negative terminal of the low-voltage battery and reconnect it before using the vehicle again to avoid starting the vehicle due to a low charge.
Proper use and regular maintenance not only effectively improve the performance of new energy vehicles in cold seasons, but also provide strong protection for your driving safety. May this guide help you stay warm this winter and travel with peace of mind.
