Hi

could you please say what brand and model battery are you guys running for your GTR37EFI boats? I am going with dual motors and would like to know what batteries should I buy.

thank You for any help

I run the cheapest thing I can find. I believe the last few have been Duracell for about $75.

But keep in mind I don't keep my boats but for about a year or so.


Sent from my beeper

What are you looking for? Just general cheap battery only used to crank it? Or will you be running bilge pumps, and a lot of other electronics and what are you wanting to spend? If you are wanting something that will last a really long time and will never die on you and will always have plenty of amps to crank look at x2 batteries or optima. Or if you just need something for cranking then you can run any cheap lead cell battery such as interstate, ever start, duracell etc.

Xs power, lithium

I am looking for two batteries that could run the engines, two big bildge pumps, one 10" led from Rigid and two other led Q2 from rigid, interior led lights, small GPS, 2 underwater lights that don't draw that much and a 12V cigarette lighter. that's about it.

I want the best out there and the lightest weight possible. there are some race car batteries with a lot of punch, they are really expensive since they are tiny and very light weight (6-8.8pounds).

do you think 2 of those race car batteries with 584CCA one model and the other with 890CCA would be enough for the rig I described above?

http://www.braillebattery.com.au/index. ... ries/b128l

http://www.braillebattery.com.au/index. ... ries/ml20c

Thank You

Why is weight such an issue to spend over triple the $$ then a deep cycle?

My understanding is you want a good deep cycle that has good cca but also carry a heavy load w/ all the accessories. I'm not so sure those racing batteries are designed for that. I will be putting 2 optimas on my rig. Granted it's 100lbs of weight but will handle everything I throw at it + some. One will be dedicated to a trolling motor/winch the other will be cranking, bilge, 4 rigid lights, light strips, radio, and cigarette lighter.

http://www.optimabatteries.com/en-us/products/

I have an odyssey PC 925. 26lb. I'm on my third season so far no problems.

I wouldn't spend the money on lithium. That's still a fairly new technology and when in the discharged state they are volatile and have been known to catch fire. Great thing about lithium though is they don't lose power until they are dead like a lead cell. I wouldn't spend the money on one. I would go for an AGM battery such as Optima

I wouldn't use lithium because they're unreasonably expensive. Everything else is about as ignorant as saying carbs are better than efi...

The tech isnt really all that new, and if they were anywhere near as dangerous as some people make them out to be, they wouldn't be used in devices that people hold right next to their face all day long. Its the future..and the technology is used in electronics you use everyday. Cellphones, laptops, cameras, power tools, toothbrushes...fuck just about anything that's cordless nowadays runs on lithium technology, and has been for years now. It's only "newer" on the automotive scene because of the costs and demand. For the average consumer, it's just not that cost effective. Its not that scary though... You're more likely to be injured by a part flying off that piece of shit briggs you're holding on to than a lithium battery.

Now...go dead short your optima and see what happens.


Just saying.

So your saying this wouldn't be a good battery to use???
Not too expensive in my book.

http://www.amazon.com/gp/aw/d/B00F9LPJ8 ... ery+tender

With one of these on hand just in case???

http://www.amazon.com/gp/aw/d/B00K0VMXD ... ref=plSrch

LiFePO4 is the right tech...that's about the most stable stuff out there for lithium. I didn't see anywhere what kind of circuit protection, cell balancing, etc that particular battery has. That would be important to me for the reasons tootall listed. The xs I mentioned, would basically just not do anything if it were to approach a temp or voltage that could cause it harm.. Several protection circuits to keep the battery in a safe state at all times. Battery tender, in general, is cheap shit, but who knows?

I know there's weight savings to be had but to you guys is a few mph worth the price over a $100 lead/acid deep cycle battery? I know for a fact the optima at one point in time were exponentially better performance and longevity wise. But you can replace a walmart battery every year for free if you save the receipt. To me personally it's not worth it, specifically because I lack the extra income. I've been piecing together a duck boat since june, johnny cash style. One piece at a time.

Pretty sure most of MMT is humusexshuls in hiding

Yes I do, it's not illegal. Technically they're getting a working battery that can be reconditioned and sold again. They're still making money. I don't feel bad even a little. If it was a problem that made them lose money they would change their warranty policy. It's economics.

Pretty sure most of MMT is humusexshuls in hiding

I didn't know where the boat was going. Sorry sir. I simply asked if the extra cost was worth the benefits to some and why so. And explained why it wasn't for me.

Pretty sure most of MMT is humusexshuls in hiding

Just got the quote today from Chad at prodigy boats, he will start my rig in 2 weeks. Talked to Braille batteries and they recommend this one https://www.braillebattery.com/index.ph ... ries/ml30c they Will marine sealed them for me at no extra cost. Thank. You for all the replies.

Fucking Rookies

Holy shit. You can get by with a cheaper battery than that Jjurado!

Those batteries are made for high performance race vehicles that don't use alternators because they want to conserve as much hp as they can. You don't need 1650 pulse cranking amps for a 37hp motor. You need that to start 1000hp motors that are running a giraffe pussy high amount of compression. Also it only has a 100 minute reserve capacity, a 200 dollar optima has 155 minutes. That Braille has it beat in amp hours only because of the added lithium amp hours which just means the battery will not drop below 10.2 volts under a load, which you would find in high performance race cars.. Regular amp hours is 28 for the braille and 75 for the optima. You can spend you money however you like but I definitely would not buy it when an optima is comparable at a 10th of the cost..

^this and also the fact that those are sports where they are looking shave ounces of weight.

With a dual rig, having a pair of 50-70 lb batteries won't hurt you at all. Get a couple dual purpose batteries. Good for running stuff when the motors aren't running, and won't keel over from the repeated starting cycles that would kill a normal deep cycle.

Lots of different opinions, but anything over 500 would be enough. The bigger it is, the longer it'll run without the engines cranked, and the better chance of having plenty of juice when you do crank them.

Buy the expensive race car batteries. You can also use them to shock fish. You know, blast a hundred teal in the morning and in the afternoon electrocute a hundred freshwater game fish. Mr No Duck Limit 60k mud boat Panamanian.

Lithium pros makes really good batteries. I have some buddies that run the 36v trolling battery and love them. I still wouldn't go lithium and would get an AGM unless you're really wanting to spend the money. But if i did I would buy the lithium pros. I wouldn't spend the 2 grand on the Braille brand honestly.

http://www.odysseybattery.com/marine_battery_specs.aspx
Scroll down, model 34m-790

I currently have a cranking model exide, 1000 ca. Lead acid. It runs a light bar and some other lights, and occasionally the bilge. Always has plenty to crank the engine even if I forget to put the kill switch on and turn it over a while. It's overkill, in reality. If I had the spare change to spend on a battery, the odyssey above or one of the cranking batteries would be my choice. Or maybe a new shotgun lol. I think the optimas would be fine too. Make sure your charger back home is designed for the technology, so when the boat is gonna sit a while, it'll keep them topped off so they maintain their lifespan.

Don't be scared of regular lead acid batteries for reliability, just plan to replace them just prior to warranty expiration, and make sure you don't discharge them fully if you don't have to. How often do you replace your car/truck battery, and you use it every day with minimal issue.

If it's only about weight, then roll with the lithium, but I can't recommend a brand, having never used or researched any of them. Lithium batteries usually require a special charger, and I don't think the stator/regulator on that lawnmower engine is necessarily designed for them, so I personally would be leery of shortening the life of them due to that. May be a non issue, and research could clarify, but I don't care. I'm not shopping for one lol

Pick up whatever you want, just make sure and grab a decent jumpstarter in the even you ever have battery trouble. If you keep it charged, it can be good to have in an emergency, and can crank your truck for you when you get back to it if you left your lights on.

Off subject just a hair, after you get your boat will you upload some vids of your hunts/ running your boat? I've got a serious travel bone and want to see a glimpse of what it's like down there

Pretty sure most of MMT is humusexshuls in hiding