1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 253Get this manual

Battery Cable Extension Minimum Recommended Gauge

TOTAL EXTENDED LENGTH MODEL ELECTRIC OUTBOARD
9.9& 15 2550 60140 V6

Battery Specifications

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives