The rods for the battery holder are held together with these soldered terminal blocks
Tail assembly for the battery holder
Head assembly for the battery holder
My custom made 4 x AAA battery holder
Leg connector ready to be soldered (side view)
Leg connector ready to be soldered (front view)
A soldered joint of my custom made helping hand for soldering leg connector
My custom made helping hand for soldering leg connector
4MM ELECTRICAL TERMINAL BLOCK