Abstract: Burners are provided above a battery for burning together high profile bushings inserted in the battery cover and lead posts extending generally upward from the battery. The high profile bushings surround the battery posts. In order to insure a complete weld throughout the entire lead bushing and post, the burners are supported in such a way as to orbit between the bushing and post. The burners orbit within this support in close proximity to the heat of the burner flame. To provide heat insulation from the tips of the burner, a heat shield is provided intermediate the battery post and bushings and the rotation mechanism of the burners themselves. Means for automatic ignition of the burners are provided as well as molds for the battery posts and bushings. The molds are provided with a water cooling capability and a separating means which surrounds the molds and holds the battery motionless as the molds are retracted after the burning has taken place.