You can either solder them together properly with a metal strip on the front, or just try positioning the metal correctly inside the case with the cells.
你可以使用前面的金属条将他们焊在一起，或者只是定位好电池盒里面的电池单元的金属条。
2
Before you solder, make sure that the pipes fit together properly.
焊接之前，要确认管子是否般配。
3
Used with the solder wire together, soldering a stainless steel etc metal.