This Sub-class includes the manufacture of secondary (rechargeable) batteries and/or electric accumulators including parts of accumulators such as separators, containers, covers, lead plates and/or grids. This Sub-class includes the manufacture of: •electric accumulators, including parts thereof such as separators, containers, covers •lead acid batteries •NiCad batteries •NiMH batteries •Li-ion batteries •Li-ion polymer batteries •wet cell batteries