Railway Battery

Batteries should be initially charged as follows: The cells should be filled with grade sulphuric acid of appropriate specific gravity to the level of 50mm over separator guard. To measure the correct heigh of electrolyte, use an ebonite or plassic rod and press down the separator guard before reading the level. A stick marked or notched ar 50mm from the bottom is useful. The battery should then be allowed to stand for eight to twelve hours. The level will fall due to absorption after filling in and should be restored by adding more acid of the filling-gravity.