Alternator output

[Hawaiian]

According to my manual, my Honda 90 produces 16 amps. I assume this is at high RPM. My question is: does anyone know approx. what kind of output I get at trolling speed (2000-3000 RPM)

 

[walleyehed]

Re: Alternator output

2000-3000 trolling speed???? WOW!!!!<br />3000 on my 115 and I'm at 19-20mph on plane.<br />As for charging current, your manual should show a charge, or amp curve-type graph as to the output at what RPM...however, most modern charging systems are capable of higher out-put at lower RPM meaning you may have 10-12 amps @2500-3000, and maybe 3-5 @ Idle...most likely around 3...

 

[Hawaiian]

Re: Alternator output

I did some research and found that at idle (950 rpm) it produces approx. 10 amps and max output of 16 amps is 3500 rpm and beyond.<br /><br />BTW. trolling speeds for game fish here is 9 to 11 mph. which is around 2800 to 3000 rpm in my boat. It gets on plane soon after and at 3200 RPM will be going around 18 mph.

 

[walleyehed]

Re: Alternator output

Yea, I thought about that trolling speed after I realised where you were located....That's some serious speed!!!<br />I've been chasing Walleye too long....2mph is too fast one day, then 2+ the next is the only thing they want, then the curve ball comes, and they want a worm at .5mph.<br />I knew the newer systems had a higher out-put at lower rpm, and thats good...we've needed that for a long time...especially at night, chasing wallys!!!