Article 4

The symbol described in Article 2 shall cover 3 % of the area of the largest side of the battery or accumulator, up to a maximum size of 5 x 5 cm. For cylindrical cells the symbol shall cover 3 % of half the surface area of the battery or accumulator and shall have a maximum size of 5 x 5 cm.

Where the size of the battery or accumulator is such that the symbol would be smaller than 0,5 x 0,5 cm, the battery or accumulator need not be marked but a symbol measuring 1 x 1 cm shall be printed on the packaging.

The symbol referred to in Article 3 shall be printed beneath the symbol referred to in Article 2. It shall cover an area of at least one quarter the size of the symbol described in paragraph 1 of this Article.

The symbols shall be printed visibly, legibly and indelibly.