1993 Johnson Evinrude "ET" 40 thru 55 Service Repair Manual, P/N 508283, Page 276Get this manual
Quality of the image is intentionally reduced!
Battery Charging Boost charge 12-volt batteries at 50 amperes for 20 minutes (1000 ampere minutes)If the charger will not give this rate, charge for an equal number of ampere minutes .at best rate ava