Marine Battery for Car?

[QuickBpBp]

One has to make their own decision as there are differences between the design and intended use. There is also a difference between a deep discharge and a total discharge. Myself I would pick a battery for automotive and one for marine. However if I had the need and the battery was at hand I would use it.

I agree. That said if I left my radio, electric fans, water pump etc on multiple times draining a battery my money is on the deep cycle battery. I would never use a car battery in a marine application but would not hesitate on using a marine battery in a car..

 

[RemCharger]

The multiple restarts and quick high rate of charge makes the car battery perfect for a race car. Just get a good one and don't kill it.

 

[Some Car Guy]

I use an Odyssey group 34. It doesn’t need to be trickle charged and can sit two years without a charge. It’s lightning on first crank of the spring.

The daily driver has one too, just the spec it called for. You can order them direct a bit cheaper than Autozone. I’ve been really happy with them.

 

[Photon440]

Just be aware that marine batteries are built differently, and also rated differently. Instead of CCA for car batteries, marine batteries are often rated at MCA, for Marine Cranking Amps, which is a different rating. A car battery rated at 600 CCA would likely be rated at 800 MCA, so you'll want to keep the rating high enough. The marine cranking amps (MCA) rating is the max current a battery can maintain for 30 seconds at temperatures of 32°F (0°C) while retaining a voltage of 7.2 volts. In general, an MCA rating will be about one third higher than the CCA rating.

 

[GTX JOHN]

We run Optima batteries is a lot of our race cars and
have forever.

That being said, I was a boat manufacturer and owned
several Marine Dealership and the alternators were just as
strong and high amps as automotive. They just had protection
from ever generating a spark which is very dangerous on a boat
with a sealed engine compartment and so did the marine starters.
The plates are also much more durable for vibration and the banging
around a boat receives compared to autos.

It is detrimental for the life for any of the batteries to be totally discharged!

 

[padam]

If 800 MCA eq 600 CCA, that will rule out the marine battery for me.

 

[Daves69]

If 800 MCA eq 600 CCA, that will rule out the marine battery for me.

750 enough?

 

[RJRENTON]

we can tell this guys never been zapped by a coil because you most certainly can see God for a moment if you did. ;)

also,ive never heard anything about a deep cycle battery hurting a car,and we use them in Everything,heavy equipment,cars,trucks,the vThereans,etc etc.

the main advantages are as stated,its usually Cheaper than whatever your car truck van battery will cost,sometimes even a Hundred cheaper.
helluva scam imo when its the same battery dimensions/marine/versus car/and yet costs way more for the " correct application "

id like to hear more about this happiness thing...??

There is DISTINCT difference between being zapped by a coil vs a 12 volt storage battery....several hundreds of orders of magnitudes...12 volts vs 25 000 volts.....like comparing apples and oranges.....get it right....or do you want to compare current capabilities....
Milliamps (coil) vs amps (storage battery)...
BOB RENTON

 

[padam]

750 enough?

View attachment 1828960

Yep that would be good.
I hve not heard all good things about Optimas though.

 

[Daves69]

I've heard the negs as well and was second guessing a second.
My first yielded 12 years for me. Working on the 3rd for its replacement. Both were made in Mexico. I guess I'll find out if it's just a lemon in a blue top, lol.

 

[Armyvet25]

Get you a marine voltage regulator, and battery life will not be compromised by over charging, I've used marine batteries in many cars with better longevity and cranking power than the standard auto batteries. I've used marine v-reg's both with and without the marine battery with excellent results, (YMMV). If you wire up an external marine v-reg, just disable the stock v-reg.
I for one endorse the use of marine batteries from my experience using them.

 

[zyzzyx]

Well, Thanks for all of the info guys! I just kept looking and looking and decided to pull the trigger on this one at COSTCO.
Rolling the dice!

 

[cosgig]

I use a deep cycle battery in my plow truck all winter. A deep cycle battery needs to be drawn down deeper than an automotive charging system does to car batteries, which attempts to keep a battery at full charge at all times. Like a lithium battery in a screw gun, they need to be drained and charged from dead, car batteries don’t do that. The dual post deep cycle isn’t necessarily made for boats with an engine that has an automotive charging system, they are projected towards a trolling motor application, where there is no charging system at all. They are designed to last longer without a charge than conventional batteries. The reason I use them in my plow they know because the plow motor is so large and puts such a draw on the battery, that it drains a conventional battery much quicker, because it has to power the lights, heater, and the plow. That’s my experience and knowledge of batteries.

 

[padam]

Now that I think about it more, I used to have trouble with the battery getting weak. But at that time I was running a stock alternator that I don’t think was not charging well.

I switched over to a Denso alternator with its internal voltage regulator, and I never had problems starting or charging.

So at this point I am planning to get a large automotive battery with at least 750 CCA. I will probably get it from Walmart since the reviews I’ve seen rate their performance well.

 

[RR Fan Dan]

750 enough?

View attachment 1828960

Yep that would be good.
I hve not heard all good things about Optimas though.

I've heard the negs as well and was second guessing a second.
My first yielded 12 years for me. Working on the 3rd for its replacement. Both were made in Mexico. I guess I'll find out if it's just a lemon in a blue top, lol.

Stay away of optima. They used to be good, but not anymore. They outsourced to China, and they are crap. They won’t hold a charge. Went through 3 in a year. Like @Daves69 my first yielded years, then replacements kept dying. Nothing lemon about it, they are pure crap now.

 

[Fran Blacker]

Well, Thanks for all of the info guys! I just kept looking and looking and decided to pull the trigger on this one at COSTCO.
Rolling the dice!View attachment 1829027

They have a good return policy. Had a couple real close to the end of warranty only paid sales tax.

 

[SlinktRR]

I tried my first yellow top optima for a track car. Started out well with 800cca. Then it died in three months. Thankfully I bought it at summit and I got refunded. Never again!

 

[GTX JOHN]

I get usually around 4 years in the race cars with the Optimas
currently made.

But only with their chargers as the have a much different algorithm
designed for the unique needs of that battery.

 

[padam]

Now that I think about it more, I used to have trouble with the battery getting weak. But at that time I was running a stock alternator that I don’t think was not charging well.

I switched over to a Denso alternator with its internal voltage regulator, and I never had problems starting or charging.

So at this point I am planning to get a large automotive battery with at least 750 CCA. I will probably get it from Walmart since the reviews I’ve seen rate their performance well.

 

[RemCharger]

Do you charge between rounds? With something that hits it with serious amps? While running the fan and pump