I can't find any specific info online as to what size/amps would be best for my particular application. The battery would only be used to power the 12v trolling motor for several hours at a time.
2007-10-08 21:14:58 · 8 answers · asked by nh_longhorn 1 in Cars & Transportation ➔ Boats & Boating
Well, you have some good answers so far. Just let me add, that if you plan on using this motor for any length of time, you will want a deep cycle battery. I have a 36 volt troller on my bass boat, and use them on eight to ten hour tourneys, and up to twelve on practice days. If you use the d/cy battery, you will have full power for about 90% of the charge. A auto/truck battery will start losing noticable power at 50%. The batterys I use come basicly in two sizes. If you are going to use it for several hours as you stated, I think I would invest in the larger one. It seems no matter how much I spend on a battery, it really performs best for two years, then declines. I have had the best luck with evereadys. It is what I've used the last eight years, there very well priced, and do as well as those priced higher. I'm not cheap, but have discovered these perform best. A good trolling motor battery can sometimes mean the difference between a check or a blank. The point here is, a middle of the road deep cycle battery will be best. If you plan on long days, a large one would be best. Just remember, a slow charge is best to regenerate the battery. They sell chargers that have a deep cycle mode. All these things are available at Walmart. Have fun, and good fishing, my favorite passtime.
2007-10-09 11:12:53 · answer #1 · answered by megofish2day 3 · 0⤊ 0⤋
The 8 ah rating means it takes 20 hours to fully discharge the battery at a current drain of 400 milliamps (0.4 amps): 0.4 * 20 = 8. You won't be discharging it to more than 50% because repeatedly doing so will send it to a premature death and besides, by then it'll be barely moving the boat at all. Your trolling motor will be drawing around 15-20 amps. At that rate the battery will be at a 50% state of charge after about 12 minutes: 8.0 amp hours divided by 20 amps is 0.4 hours or 24 minutes. Half that is 12 minutes. But a quicker discharge means you get less power -- at 20 amps you're looking at 6 to 8 minutes of run time. (remember, the 8 amp hours is at 400 milliamps). Get yourself the biggest heaviest marine deepcycle battery that you can afford. You get around 3 hours continous run time from a 150 ah battery in good condition (time to 50% discharge). In an emergency you can use the cranking battery to run the T/M, and you can crank the engine with your T/M battery. Get a good bench charger and keep your deepcycle charged.
2016-05-19 21:46:22 · answer #2 · answered by ? 3 · 0⤊ 0⤋
Go with a deep cycle 800ca. The reason is: Deep cycle batteries really are no more powerful than standard ones HOWEVER, they are designed to be completely discharged with every use, hence the name, DEEP CYCLE. (many people don't know this). Using a standard battery for deep cycle applications shorten their life drastically.
If you want more time parallel two or more + to + and - to -.
Optimas are good for boats because they are light weight in comparison to conventional lead acid batteries. But get ready to dig into your wallet.
2007-10-08 22:17:30 · answer #3 · answered by The prophet of DOOM 5 · 1⤊ 0⤋
Most any Marine Battery be good. I have even used a regular truck battery for what you talking. It was pretty big. I not remember the number, but, it like the battery on big diesel trucks, D-5??? Maybe, it about the biggest battery you can get. Last for days! LOL!
I just give you this link for Cat Batteries, this their Marine Battery and may not be the biggest, but, it may be good quality.
http://www.cat.com/cda/components/fullArticle?m=37407&x=7&id=241554
2007-10-09 05:42:42 · answer #4 · answered by Snaglefritz 7 · 0⤊ 0⤋
Get a deep cycle battery as there designs to charge & discharge>A 27 series with the most amps hour you can find or bring oars with you as when your out your out>It will last a lot longer>
2007-10-09 02:06:46 · answer #5 · answered by 45 auto 7 · 0⤊ 0⤋
If it is just a small motor as you describe, a normal automotive 12 volt battery will do.
2007-10-08 21:18:38 · answer #6 · answered by Anonymous · 0⤊ 0⤋
deep cycle marine is what you want.
i got mine at wal-mart. its a 12 volt 75 amp hours. the battery number is 24dc-6. you may want a larger one for a 46lb thrust but you do want a deep cycle marine.
2007-10-09 04:38:16 · answer #7 · answered by skip d 1 · 0⤊ 0⤋
the x democrate got it right, you want a deep cycle battery not a regular automotive battery.
You can get a good one at a fair price and good warranty at your local Walmart, that's where I get mine and they are good batteries.
2007-10-09 00:56:06 · answer #8 · answered by MR. T. 6 · 0⤊ 0⤋