Charging System on 86 BlackMax

[1BadTitan]

Yea I thought about the LED's drawing almost 0 amps... Ohms law has been drilled into my head for the past 15 years in my field, so yea I factored the current draw... My concern was over working the motor's generator. A dual battery setup would be perfect, I just worry about recharging and overworking the system. 100w would definitly be enough, I havent bought anything yet. I would also like to have the extra power and just never take it to its threshold, sounds better that way. As for the screen, I thought a small tv in the cuddy would be safe from the elements, thus not concerning myself with that... Should I?

[macojoe]

if you put it in a boat expect the unexpected as far as getting wet, or at least getting banged around!
As far as battery power i would get a big deep cycle and recharge at home at the end of the day. I just have a am/fm cd player on my boat and it is plenty loud enough!
I have a 2003 Yamaha 200 HDPI no idea what the charging system puts out, but i run a 2 battery system with out any problems. Radio, GPS all day long on one battery. If ever needed to just switch on the 2nd battery and go home.

[smokeonthewater]

ALSO keep in mind that the output listed will be peak output at a given rpm.... likely at near max rpm and of course it will only charge while running... 30 minutes of run time followed by 5 hours at anchor and 30 minutes back and you would be far better off with a good battery charger and plenty of batt power (IE one or even TWO deep cycles) to last you all day.

[draglink]

I have a late 80s or early 90s Black Max. 2 battery set up under console.
I have 4, 6" JL speakers.
I wired up 2 speakers directly to the stereo. The other 2 I have run through a 100w amp. I have the amp wired to turn on by a switch. When I am running slow, or beached, I turn the amp off to save the batteries. When I am fast trolling to cruising, the amp is on and I get GREAT sound at all speeds.

I had my Mako wired up this way also....in probably 5 or 6 years and 2 boats, it has worked great for me

[1BadTitan]

Here's Plan B... 4 6 1/2" speakers run straight off the radio and a pre-powered sub in the cuddy... Will that be loud enough to still comfortably hear it while running?

[smokeonthewater]

very much so
above decks on my 30'er I have two 6.5's running in series with two more in the v berth sharing 30 watts rms between all 4 and 2 6x9's at 15 watts rms each in the back of the cabin.... I am I/O with 2 mercruiser 260's and even WOT at 48mph I don't need more than half volume to hear it clearly.... I hate having to shout over the radio to talk to others while driving.