2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 32Get this manual
SPECIAL TOOLS AND SERVICE SPECIFICATIONS TECHNICAL DATA HP
Battery, Minimum Requirements
12-Volt, 360 CCA (465 MCA) with 90 Minutes Reserve Capacity or 50 Ampere-Hour A, Non-regulated (accessory) Pulse 10 pole (with alternator) Accessory PIN 514021
12-Volt, 500 CCA (620 MCA) with 90 Minutes Reserve Capacity or 50 Ampere-Hour A, Non-regulated (Standard 2530TEEL) Pulse 10 Pole (with alternator) Standard on Rope start models Water Temperature (180F)
Alternator Tachometer Setting AlC lighting Engine Fuse (20 Amp) Warning Signal