Best Battery for Trolling Motor

Hey guys, I’m running a Minn Kota 112 lb 36 volt Ulterra on my Nitro Z-21. I crappie fish a lot pulling cranks. I currently am running three Interstate Group 29s. I’m tired of the Interstate batteries going bad on me 2-3 months after the 12 month warranty runs out. I’m running an X2 group 31 dual purpose for my cranking battery. Ok so my question is which battery is the best option to allow me to troll constantly for an all day fishing trip. Thanks for your input. I’m ready to bite the bullet and get three quality batteries that will last a long time. Thanks again.

These can be bought cheaper than this list price. They have great reserve capacity.
US Battery US31DCXC2 Group 31 Battery

A lot of people have great luck with the walmart batteries and their warranties. I have been using Duracell branded batteries bought a one of the batter specialty stores adn they are going on 4 years now in one bough, and 5 in the other boat. I have never killed them in a day either, always had juice left. they are the big size though.

Hard to beat that!

I have had good luck with group 31 Duracell AGM battery. I bought these at Sam's. They do have a sale on them early spring sometimes.

I had 2 sets of 3 Walmart batteries that lasted me 7 years as long as you take care of them. Lasted all day no problem. I bought some interstate batteries and had 1 go bad on a weekend, shop was closed so had to buy 1 to fish. Best thing about Walmart is always open and close by. May be better batteries out there but I will run Walmart from now on.

Trojan 1275 golf cart batteries. I've owned a tractor trailer full of deep cycle batteries over the years and have always thought Interstate batteries were junk. I need batteries I can depend on and I'm hard on mine with daily trips. Trojan 1275s have never failed me.

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Originally Posted by Pnut

I had 2 sets of 3 Walmart batteries that lasted me 7 years as long as you take care of them. Lasted all day no problem. I bought some interstate batteries and had 1 go bad on a weekend, shop was closed so had to buy 1 to fish. Best thing about Walmart is always open and close by. May be better batteries out there but I will run Walmart from now on.

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#metoo Installed free too. I have 2 type 27s an one cranker battery. 6 years old Everstarts. Made by Exide. I can still pull cranks 1/2 a day. Thats all I need.

x3 on the Everstarts. Running two 29DCs and a 24MS.

I've pulled cranks for 4-5 hours straight and still had some left with a 24v Terrova.

My last 2 Duracell battery's lasted 6 years, guess what I replaced them with. One of the secrets to long life is refilling them with acid. I troll a lot and go fishing 3/4 times a week.

Do any of you guys know much about the X2 POWER batteries? Particularly the SLI31AGMDPM model? Thanks.

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Originally Posted by trypman1

My last 2 Duracell battery's lasted 6 years, guess what I replaced them with. One of the secrets to long life is refilling them with acid. I troll a lot and go fishing 3/4 times a week.

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Should refill only with distilled water. Water is all that evaporates during use. Adding acid will corrupt the ratio of liquid in battery.
This can be confirmed by reading detailed instructions for battery. Pretty important to get this right.

Several threads on bbc forum on lithium batteries, and the guys there are going to lithium batteries. Most are going with the 50 amp for their trolling motors either 24 volt or 36 volt with the 50’s hooked up. 3000-5000 full charges, 5 yr warantee, and a blue tooth program for your phone will show how many amps you have left as your using them, Imjust got a 50 amp Iconic for all my electronics that weighs 14lbs 6 ozs to replace my series 31 that weighs 75 lbs. when my others batteries die, will replace with lithium. One cycle charge of the 3000-5000 is a complete charge. If it only needed charge when at 50% used....that is a half a cycle. So figure how many times you will charge in a year and figure how long the battery will last. Sure they cost. But, I definitely in the next 10 yrs won’t need to get another battery. Read!!!
What to buy lithium
Will my 02 Mercury 250XB charge a lithium cranking battery?
Lithium 80 vs 100 amp hour
Charging Lithium Ions
Lithium Cranking Battery??
http://www.bbcboards.net/showthread.php?t=982657

I find the lithium’s interesting but I’m not shopping for a better right now. A cross that bridge when I come to it thing.

The batteries I’m running are Walmart series 29’s and have had them 3 years now, and they’re in their second boat. I troll 6 or 7 hours and have never had them go down yet. These are the cheaper ones, I bought the pair for under $250. My blue top in my bumble bee I sold was 5 years old and also never let me down, used it as a cranking and electronics battery. Crank battery in this boat is little more than a car battery and was there when I bought it, works fine, ain’t broke don’t fix it kinda thing right now. I expect to have to deal with it before the TM batteries. The interstates I had before these lasted about 4 years and had a cell go bad in one so I replaced the pair. They were 27’s and I worked them hard too. If the lithium’s don’t cost me my first born child, they may be in my future when it comes time to replace. I like a sealed battery, one less thing to worry about.

I too run the Walmart deep cycle group 31. Been getting 5-6 years out of them.
I think the lithium’s are where we will all be in 5-12 years.
Less weight, more cycles, does have specific charging needs I think.


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Walmart 31's for me no problems at all. I use minn kota on board charger when she goes to bed

Walmart batteries for me.

SLI31AGMDPM
$390 at Batteries plus

I ran 2 12 volt deep cycle (27s) in parallel in my motor home. These were for running all 12 volt accessories plus TVs on inverters. It had a totally separate battery for cranking and running the engine.
I attended a technical seminar at an RV rally on house batteries and run life.
Turns out I bought 2 6 volt golf cart type batteries and ran in series for 12 volt house power.
To compare reserve power:
With the 2 12 volt ones,after running lights, TV and ceiling and exhaust fans all night, i had about 50% battery life the next morning.
With the 2 6 volt batteries
I had about 85% left the next morning. The batteries were a couple inches taller so I had to extend the tie downs but length and width were identical.
I don't remember the exact number but the technician. showed me the spec on reserve capacity on the 6 vs 12 volt and it was darn near double the reserve amps.
Bottom line the price was almost identical on the 6 vs 12 but the run time was about 3X for the 6 Volts.
Incidentally the seminar was hosted by Interstate Battery which is what I was running. The 6 volts were also Interstates.