How many Marine cranking amps, and cold cranking amps do you need to start a 50 hp Mercury? I don't even know what that means, or what the difference is.
I will also be running my bilge, and aerator pumps off of this battery.
Thanks
Patrick
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How many Marine cranking amps, and cold cranking amps do you need to start a 50 hp Mercury? I don't even know what that means, or what the difference is.
I will also be running my bilge, and aerator pumps off of this battery.
Thanks
Patrick
650 cold cranking amps will start your 50 just fine. I have a 40 horse Mariner, run all my crap off it, cept the trolling motor and only charge the battery bout every 3rd trip. there seems to be some debate about how often to charge, but every third time works for me
Thanks stinkies daddy.
650 cca. Anyone agree/disagree?
I have no clue.
650 cold cranking amps should work.I have a 60 Mercury and only have 450 cca. But i am in AZ.
With bilge and aerators I'd go with a dual purpose 650 to be sure and charge after each trip. ( I keep a cheap trickle charger and x-cord beside where I park the boat and hook up as soon as I get home. Then I never have to worry.)
Yeah, I wasn't sure if I needed the dual purpose or not. I appreciate the suggestions guys.
I'm on my third year using 2 Walmart dual marine types with no problems. I have actually been surprised they lasted that long for "El Cheapos". I credit it to the trickle charger never letting the sulfides decay or slowing it at least.
I'm on year #6 with a 29 deep cycle. I can't credit it to keeping it charged, because I don't always do a good job of that. I just bought another one just like it, but need a 24 series for starting, and running the pumps.
I won an Exide Nautalus at a tournament, and it lasted for about 10-12 trips to the lake. Now both chargers say "check connection" when I hook it up. Anyone know if those prize batteries carry any kind of warranty? I didn't figure it did, but worth a shot right?
I just bought a on board charger so I could keep the batteries charged easier.
Thanks again for the help guys.
650 should be fine. If all you are running is the pumps & motor,as long as the stator on your motor is good then I don't see why you should have to charge it. at least I don't mine,,,,,,,Quote:
Originally Posted by pstone
I never had any problems with the old battery running down, but since I got a 2 bank charger, I just figured I would charge it when I charged the trolling batteries.
Quote:
Originally Posted by bentpole
make sure the RC-(reserve capacity) is higher if your running bilges etc.....
The stator on older Evinrudes (1975 70hp) isn't so great anyway and mine has never been replaced so I keep batteries charged so I don't stress it much. I have stereo/VHF/Finder/Cell charger/Troller/GPS charger and sometimes lights/aerator running alot.
I have been wondering about that myself. I've got an old blueband 500 and I have/need to charge it about every trip when it's cool or colder. In the summertime, and we're swimming and tubing it does fine with no charging. Running short trips and shutting off, in cold weather, it's not worth much-especially that first start of the morning. I've had to parallel it with the trolling battery a lot of times for that first crank.
most outbord onley put out 8 t0 10 amps . with frequint starting it could run down . i alwayes run the motor on a battery by itself . everything else is run on anothe battery . would hate to rope start a 55 hp.:eek: .
I got a 300 Kawasaki 4 wheeler. You can't rope start it without the decompressor . I got a 15 hp Suzie 15 hp outboard 4 stroke. It rope starts easy (no decompressor). What the difference here?Quote:
Originally Posted by papasage
Well guys, thanks for the advise. Went to Walmart last thursday, and the highes cca 24 series battery they had was 550cca.... I said well, we will see how this works. Took it to the lake Friday and it worked fine. so far so good..
Thanks guys
I second the "dual purpose" battery suggestion. They can be charged/discharged more often...which will happen if you're running the pumps, electronics, etc for several hours at at time. This shortens battery life... more so on a "starting only" battery. Discovered this the hard way... at night a long way from the dock. Had charged it the previous trip, too.
Now use a Trojan dual purpose for starting and accessories.