Maintenance-free batteries do have the potential to freeze in winter. Low temperatures will reduce the charge capacity and starting ability of the battery, and may even cause the battery to fail to work properly. In order to avoid freezing of the battery, some measures can be taken, such as using a thermal sleeve or heater to maintain the temperature of the battery, regularly checking the electrolyte level and charging state of the battery to ensure that the battery is in good working condition. In addition, avoiding long periods of parking in a cold environment can also reduce the risk of freezing the battery.
Maintenance-free batteries are afraid of freezing in winter.
Electric vehicle battery belongs to lead-acid battery, lead-acid battery is the most suitable working temperature is 25 degrees, if below minus 10 degrees, the active substance activity inside the battery weakened, will cause the battery charged, the battery power can not be fully released, there will be a state of power attenuation and acceleration, may affect the vehicle start. Therefore, in the cold winter, electric vehicle battery charging is best in a warm room.
Answer, maintenance-free batteries are not afraid of freezing in winter, but their power utilization is still much lower.