#Model-150l. Whether your day calls for a vacation or a voyage, a Mercury 75 to 150hp FourStroke outboard is the perfect accessory for your next adventure. They feature efficient, lightweight designs that ensure no power goes wasted - the ideal way to get wherever you want to explore next.. High-Output Alternator. A powerful alternator - 60 amps on the 150hp outboard and 35 amps on 75 to 115hp outboards - helps keep batteries charged and your onboard electronics running all day.. Command Thrust