Battery question for Boston whaler rage 14

[birdgod]

Hi, quick question. I have a Boston whaler rage with 90hp engine. My question is that can I use a jet ski battery for starting the motor? Will the smaller battery handle it? The reason is that I use my boat for fishing use a lot of trolling motor. So I need the space for two deep cycle battery and it is not enough space to install three large battery. I just need to use the jet ski battery to start the boat about 5 times during the fishing to move to different spot and I don't use any other electronic on the boat beside stand by pump which I can attach to trolling motor batteries. Thanks

 

[flyingscott]

NO you cannot

 

[boobie]

Why ??

 

[flyingscott]

They just don't last and they don't have enough reserve Ask somebody who owns a jetski how often they replace the batteries it's the price you pay for a jetski.. It will leave you stranded.

 

[boobie]

Then how about a lawn mower battery ?

 

[Faztbullet]

It will work as when we raced for bragging rights we took empty Exide battery displays, wired 2 lawn batterys in parallel inside them to the top lead terminals and cranked a 200hp Mariner with it. Along with carpeted pegboard deck lids,empty trolling motor batterys,siphoning out AV gas from a buddys Beechcraft Baron(numbs your lips almost instantly)running 10oz C-130 MIL spec turbopropshaft fluid in lower unit(instant 250rpm, cut teeth off reverse gear adds 450rpm) there are lots of trick you can get by with...

 

[birdgod]

They just don't last and they don't have enough reserve Ask somebody who owns a jetski how often they replace the batteries it's the price you pay for a jetski.. It will leave you stranded.

I asked that because I have been using my jet ski batteries for my two jet ski for more then 5 years. I have 2 Yamaha SUV1200cc and the batteries look like it is doing the job fine. I didn't try it on the bw rage because the starter look bigger and I don't want to damage the battery. P/s: I alway mantain my batteries check water level and let it side on float charger.

 

[flyingscott]

I asked that because I have been using my jet ski batteries for my two jet ski for more then 5 years. I have 2 Yamaha SUV1200cc and the batteries look like it is doing the job fine. I didn't try it on the bw rage because the starter look bigger and I don't want to damage the battery. P/s: I alway mantain my batteries check water
level and let it side on float charger.

You are one of the few that use float chargers good for you that extends batteries a long way. But on your boat the T/N/T also runs off of the battery. A small battery like that does not have the capability to handle that. Even if you have the bigger alternator on yours depending on year it's to much to ask of a small battery. They may work for a while but it will leave you stranded eventually.

 

[birdgod]

You are one of the few that use float chargers good for you that extends batteries a long way. But on your boat the T/N/T also runs off of the battery. A small battery like that does not have the capability to handle that. Even if you have the bigger alternator on yours depending on year it's to much to ask of a small battery. They may work for a while but it will leave you stranded eventually.

My boat is a jet without power tnt. So the only thing I will hook up to the battery is the motor cable and I think it will get charge while I am running it. As for the pump it is auto if water is detect I will hook it up to one of the deep cycle battery.

 

[oldboat1]

I use a Guest charger on my boat for the main and house batteries, with an extension I can use to charge or jump the starting battery for the auxiliary motor. You might check Guest chargers along with the wiring they use, and optional hook ups. I'm sure Guest isn't the only one (might even be typical), but the options might be of particular interest. Use the charger as your shore charger, and keep the plug-in accessories on board to jump/parallel the small battery if you need to. Prices seem pretty reasonable.

 

[phillnjack2]

you need cold cranking amps, not the physical size but atleast 600cca for that engine or you will burn out the starter motor.
starter motors are a very easy thing to damage, they will not like just enough power from the battery they need plenty of power.
starter motors will not last if slightly abused, they are not like electric motors used for continuous running , they need plenty of amps fast and spin the starter fast.
get about 70 amp battery for a diesel car, you do not want a deep cycle battery for starting and charging from your outboard.