1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 259Get this manual
Battery Cable Extensions The following are minimum specifications for stranded copper cable without splicesCable measurements given are from the motor to the batteryThe maximum length is 20 ft(6,1 m), regardless of cable diameterThese specifications do not apply to aluminum battery cablesOMC does not recommend the use of aluminum battery cablesMinimum Recommended Gauge Total Extended Length Model Electric Outboard10 ft(0,3m) gao 10 gao gao ga gao gao 1115 ft(3,44,6 m) gao gao gao gao ga gao 1620 ft(4,96,1 m) gao gao gao gao ga ga o
PCE0061
2550 60140 V6 V8
Battery Specifications
All batteries should be of heavy duty, marine construction and vented, refillable typeA battery that is not fully charged or is less than recommended capacity may not crank the engine fast enough to produce ignition component output