Cranking, Trolling Motors and Batteries

My current set up is a 24V 70lb Terrova, running off of (2) Interstate marine batteries. These were brand new in the boat when I bought it last May 2016.
I am running low on juice every trip out, and I know it's because of trying to pull a 21ft nitro at 1.5mph, it's gonna strain the batteries.
What kind of batteries could get me more time on the water for cranking? I never have issues spider rigging or 2 poling structure. Do I need to jump to a 36V trolling motor? If so, what kind of batteries should I run that on??

Thanks gents,
Brian

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I run 2 24v battery setups in my boat and I also have a trolling plate

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What group batteries do you have, I run 3 group 27s on my 20foot alum boat and have no problem pulling cranks however long I want, as long as I play smart and use the wind to my advantage. I would recommend a 36v system or like blueball, the 2x24v. But the 36 handles the bigger boats a lot better


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Originally Posted by MO' MONEY

What group batteries do you have, I run 3 group 27s on my 20foot alum boat and have no problem pulling cranks however long I want, as long as I play smart and use the wind to my advantage. I would recommend a 36v system or like blueball, the 2x24v. But the 36 handles the bigger boats a lot better


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Mo,
I will have to look at the batteries in the a.m. for the group #.
I also try to play and use the wind. Today was not the day for it tho, northeast wind on Ky lake is a pain!

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I had a pair of 29 batteries that were 4 years old and probably saw little use that were in the boat I bought. They would last 4 hrs or so at 1.5-2mph. The 31 group batteries I just bought show 75% left after 8-9hrs+.

This is on a 80lb riptide, 16.5'alum Lowe deep V.

You NEED 36v !!:biggrin

2x 24v seems best.


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Go ahead and use a few of those hunerts. I just bit the bullet and put a 36 volt 112 ulterra on my boat. Had run 12, 2x12, and 24. None were totally satisfactory to me.


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With a boat big as yours I'd at least go to 24v system with a good group 31. Plus, it doesn't drain the battery as badly so the batts will generally last a little longer.

Perfect world scenario- group 31s on a 36v system


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Originally Posted by Lloakley930

2x 24v seems best.


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I agree, much cheaper than a new tm, but space constraints can become an issue. Probably not on a big ole 21ft glass boat tho


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Imho, you are underpowered with that boat. Unless you are prepared to spend $2,000 + for a 36V TM and 3 new group 31 batteries, go get two new Trojan 12V golf car batteries. Mine cost me about $180 each and I haven't run them down yet. Keep in mind tho, I have an 18.5 ft tin boat. Actually, I'd trade up to 36V if I had room for the 3rd battery along with the $.

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Originally Posted by bandchaser

My current set up is a 24V 70lb Terrova, running off of (2) Interstate marine batteries. These were brand new in the boat when I bought it last May 2016.
I am running low on juice every trip out, and I know it's because of trying to pull a 21ft nitro at 1.5mph, it's gonna strain the batteries.
What kind of batteries could get me more time on the water for cranking? I never have issues spider rigging or 2 poling structure. Do I need to jump to a 36V trolling motor? If so, what kind of batteries should I run that on??

Thanks gents,
Brian

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check the personal classified ad section there is a REAL GOOD DEAL on a 36volt Ulterra !!!!
For Sale: Minn Kota 112 Ulterra 36V with 60" shaft

problem solved!

My batteries are group 27's.

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Originally Posted by bandchaser

My batteries are group 27's.

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You need 31's

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Quote:

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Originally Posted by Lloakley930

2x 24v seems best.


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I agree, much cheaper than a new tm, but space constraints can become an issue. Probably not on a big ole 21ft glass boat tho


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Alright, is Exide batteries any good?

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I've used from Walmart batteries to interstates to napa. I used to think my batteries were bad, I was just taxing them with my fishing style in high winds. Check water levels and keep charged up and nearly any brand will last. I know few folks that buy Walmart brands and trade them in every year before they have a chance to get too many charge cycles on em


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These Exide batteries are at Tractor Supply.
I quit buying batteries at wally world several years ago.

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Quote:

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Originally Posted by bandchaser

Alright, is Exide batteries any good?

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We have two group 31 exides in our 20 ft skeeter. We've been using them for two yrs now. We do quite a bit of crank bait pulling. On a full charge, we can run 1.5-1.8mph all day as long as the wind isn't terrible. We just replaced one of them last week because it didn't seem to hold charge very well anymore. I replaced it with another exide. They see a lot of use because we generally fish at least once or twice a week year round.

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Originally Posted by Crappiehabits

We have two group 31 exides in our 20 ft skeeter. We've been using them for two yrs now. We do quite a bit of crank bait pulling. On a full charge, we can run 1.5-1.8mph all day as long as the wind isn't terrible. We just replaced one of them last week because it didn't seem to hold charge very well anymore. They see a lot of use because we generally fish at least once or twice a week year round.

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Thanks habits! That maybe my cranking solution!

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I run 4 group 31 auto craft batteries in mine, and I haven't run them down yet. 12+ hours some days. Get the deep cycle marine batteries with the highest RC value you can. Mine are all 210 rc. 80# terrova on a 522 ranger... 24v

Out with the old, and in with the new! Power and connection tests complete, and even topped the new one's off with distilled water. On board charger is currently doing its thing!
I'm ready now!!
https://uploads.tapatalk-cdn.com/201...3ddc8a4109.jpghttps://uploads.tapatalk-cdn.com/201...e1751d86d2.jpg

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I run 2 golf cart batteries.. fighting a stiff wind all day will run them down but it's rare!


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Quote:

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Originally Posted by bandchaser

Out with the old, and in with the new! Power and connection tests complete, and even topped the new one's off with distilled water. On board charger is currently doing its thing!
I'm ready now!!
https://uploads.tapatalk-cdn.com/201...3ddc8a4109.jpghttps://uploads.tapatalk-cdn.com/201...e1751d86d2.jpg

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Brian, I know this is after the fact and a little off the topic but when adding water to your batteries always have them at full charge. When you add water then charge the water heats and expands and at times come out your vent and around caps as acid thus creating a mess. The only exception to this is if you pull the caps and water is below top of plates, then add just enough to cover plates before charging. Then after charging top off.