Question 142Electricity & Electronics - Assistant Engineer

The correct answer is D) The battery should be kept in a fully charged condition. Keeping the battery in a fully charged condition is the best method to prevent the freezing of batteries continuously exposed to low temperatures. When a battery is fully charged, the electrolyte solution has a lower freezing point compared to a partially charged or discharged battery. This helps prevent the electrolyte from freezing, which could damage the battery. The other options are not the best methods to prevent freezing. Sealing the battery cap vents (A) or removing the battery caps (B) does not address the underlying issue of the electrolyte freezing. Disconnecting the battery from its charging source (C) may allow the battery to discharge, increasing the risk of freezing.