1969 Evinrude 40 HP Big Twin, Big Twin Electric Lark Service Manual 4596, Page 88Get this manual
cTurn on an to 10 ampere load by turning ignition switch to "ONposition and turning on lights or other accessoriesAfter minute, with to 10 ampere load still on, read individual cell voltages of battery with voltmeter having .01 volt scale divisionNOTE After testing, close openings made in sealing compound by the prods of the voltmeter above the connector strapsby pressing the sealing compound with blunt toolIf any cell reads 195 volts or more, and the differ-
specific gravity readings with battery hydrometerIt is suggested that specific gravity readings and