2007 Evinrude E-Tec 75, 90 HP outboards Service Manual, Page 36Get this manual
INSTALLATION AND PREDELIVERY BOAT RIGGING Battery Switch Requirements Battery switches must meet the following requirements The switch must be approved for marine use The switch must be "make before break" design to protect the charging system from no-load condition Switch amperage rating should be adequate for the outboard it will be used on Use one battery switch for each outboard installed Use the appropriate sized wire and terminals for all connections Use AWG stranded copper wire
Battery Switch Operation Select the primary battery for normal operation Secondary batteries should only be selected for ALL or BOTH switch position is for emergency
starting onlyProvide operator with the documentation supplied by the battery switch manufacturerMake sure that the operator is informed of proper battery switch operationemergency starting
IMPORTANT: The negative () terminals of a