Storage advice: Solar batteries are dangerous goods

11/7/18, 5:00 PM -

Lead is a toxic heavy metal, furthermore, the battery cells are filled with sulphuric acid or dangerous gel. And lithium storage units come under transport provision UN 38.3. It is legally binding for all lithium storage units, rather than just for lithium cells.

Installation with the Axitec storage system.

UN 38.3 represents tests that ascertain the transport safety of lithium ion cells and batteries. Products that have not passed the UN 38.3 test may only be transported under exceptional circumstances. Because of their size and quantity, domestic stationary storage units usually do not warrant an exception.

Tests include mechanical vulnerability to vibrations and shocks by exposure to forces of up to 50 or 150 grams, safety in a vacuum and from a short circuit as well as thermal stability. Many tests are undertaken at accredited laboratories; the manufacturers generally do not the necessary equipment.

The results of these quite elaborate UN tests are usually recorded in a detailed audit document for internal documentation as well as in a short report/test certificate or presentation for public submission. Well-known accredited service providers such as the TUV Rhineland, VDE, UL or Cetecom provide such tests. Having passed the UN 38.3 tests certifies transport safety, if all requirements are met. However, this does not automatically also certify the product as safe to use. (HS)

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