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BATTERIES (Lead Acid)

Description: Such batteries are invariably shipped dry (i.e. without electrolyte in the cells) or the components may be shipped loose. Damage which may be suffered by cells shipped unassembled will either be mechanical or through entry of excessive moisture, fresh water or seawater, into the cells. Mechanical damage can be remedied by dismantling the battery and replacement of the affected parts. Damage through entry of water will ruin the plates and separators if the amounts of moisture are considerable. In slight cases, however, the effects of moisture can be minimized by the following treatment: See also IMDG Code & US CFR. Fresh-water contamination - The batteries should be put into service normally but the length of the first charge may have to be extended from the normal number of hours. At the end of the charge of electrolyte may be necessary if impurities are present. Sea-water contamination - Batteries should be put into service normally, but the length of first charge may have to be extended from the normal number of hours. At the end of the charge, the electrolyte should be changed and a further charge given. Chemical tests should be carried out and changes of electrolyte continued until impurity limits are satisfactory. The changing of electrolyte is most important. In the case of dry charged, partially dry charged, or short first charged batteries, entry of moisture would destroy the charge characteristics and it would be necessary to treat the batteries as standard long first charge types as above. Breakage of seals or restrictive devised fitted to dry charged batteries may result in loss of dry charged characteristics although not necessarily in permanent damage to the cells if they are given an adequate first charge. Battery plates shipped loose may be damages permanently if allowed to come into contact with most packaging material. Such damage may not become evident until after the cells have been in service for some time. If moisture is suspected the plates should be swilled in pure water and put into service at once. This treatment may only be partially effective. Microporous plastic (or similar) separators may be rendered useless if accidentally wetted. Wet treated wood separators will be damaged if the packing material is disturbed. Neither type of separator can be restored and should be destroyed. During transit the temperature should be kept moderate and the batteries or crates in which they are packed should be shielded from direct ray of the sun. Note: - In the event of moisture gaining access to the plates, the battery manufactures should be consulted at once if the amount of damage is to be kept to a minimum.
Index: 77
Commodity Name: BATTERIES (Lead Acid)

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