Because the performance of batteries is severely degraded at cold temperatures, ship's personnel who use battery-powered equipments are more likely to become involved with the handling of batteries during a cold weather cruise than under normal conditions. This handling may include recharging batteries, warming up batteries, which have become too cold or replacing batteries, which are no longer serviceable. In recognition of the potential serious safety hazards involved in handling batteries and electrolytes, this section describes some of the safety precautions which should be enforced at all times. Emphasis is given to considerations, which are especially important under cold weather operating conditions. These and other precautions are described in greater detail in NSTM, Chapter 313.