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Old 03-28-2020, 01:28 PM
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Default Battery Selection for 80lb thrust Ulterra

I am installing my new Minnkota Ulterra 80LB 24V on 1850 sportfish. I am looking for some advise if I should go with the Size 24M or Size 27M deep cycles. I am not convinced to go with a gel or AMG style as I don't know enough about the added benefits. I do not fish as often as I'd like so the sales pitch of longer life expectancy may not pay off for me. Thoughts??
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Old 03-28-2020, 02:10 PM
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If you have room for 31's I'd go that route. Go with the AGM
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Old 03-28-2020, 03:15 PM
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Need more information. Without knowing more about your needs and how you fish, it's tough for anyone to give you advice.

It depends. If you go with a flooded cell, then you do need to check and top off the cells with distilled water. Are you OK with that? If you want it to be maintenance free, then go with AGM. Do you have an onboard charger that'll charge an AGM? Would you rather spend less money up front and replace more often? Or spend more money up front and replace less often?

How long are your fishing days? I cannot imagine ever going with a Group 24 for the way I fish. The Reserve Capacity isn't near large enough. But that might work for you if you only go out for a few hours.

General rule of thumb is to buy the largest Reserve Capacity that you can afford. For most, that means a Group 31 or at least, a Group 27.....
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Old 03-28-2020, 03:40 PM
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Quote:
Originally Posted by ziemann View Post
Need more information. Without knowing more about your needs and how you fish, it's tough for anyone to give you advice.

It depends. If you go with a flooded cell, then you do need to check and top off the cells with distilled water. Are you OK with that? If you want it to be maintenance free, then go with AGM. Do you have an onboard charger that'll charge an AGM? Would you rather spend less money up front and replace more often? Or spend more money up front and replace less often?

How long are your fishing days? I cannot imagine ever going with a Group 24 for the way I fish. The Reserve Capacity isn't near large enough. But that might work for you if you only go out for a few hours.

General rule of thumb is to buy the largest Reserve Capacity that you can afford. For most, that means a Group 31 or at least, a Group 27.....
And a wet cell will offer the highest RC, only he didn't mention a wet cell as one of his choices.
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Old 03-28-2020, 03:43 PM
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The common recommendation is to have the largest battery possible, and therefore, group 31. Group 31 is readily available but a group 31 is not the largest that can be installed.

Battery capacity directly correlates with weight. In my opinion a broad recommendation to use the largest battery inadequately factors the undesirable consequence of added weight.

There is no one size fits all. Rather, batteries should be sized for the intended use. A boater that only uses an electric motor for occasional spot lock has very different needs than a boater that intends to troll all day with an electric motor.
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Old 03-28-2020, 05:12 PM
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Ulterra's use a lot of juice, so if you have the room, go with the recommendations of others here and get the 31's. You won't be sorry, especially, if you fish for long periods of time.
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Old 03-28-2020, 05:40 PM
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For the difference in price and weight, go with the group 31, assuming they will fit. Like Juls said, the ulterras use more battery reserve. I noticed it, immediately, when I replaced my power drive.
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Old 03-28-2020, 07:59 PM
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Quote:
Originally Posted by guide7 View Post
I am installing my new Minnkota Ulterra 80LB 24V on 1850 sportfish. I am looking for some advise if I should go with the Size 24M or Size 27M deep cycles. I am not convinced to go with a gel or AMG style as I don't know enough about the added benefits. I do not fish as often as I'd like so the sales pitch of longer life expectancy may not pay off for me. Thoughts??
Guide7
What is your price range? There are 27's,29's that are very reasonable. Bob
Sams has a great price but avaiable at other places.
https://www.samsclub.com/p/duracell-...dc/prod3590231

Last edited by Ozark Bob; 03-28-2020 at 08:13 PM.
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Old 03-29-2020, 05:02 AM
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Quote:
Originally Posted by Ozark Bob View Post
What is your price range? There are 27's,29's that are very reasonable. Bob
Sams has a great price but avaiable at other places.
https://www.samsclub.com/p/duracell-...dc/prod3590231
Just to clear up the confusion, Sam's Club 29's are really Group 31 batteries......for some stupid reason they are using the 29 as a model # and not a Group size...... did I clear that up or make it worse.....
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Old 03-29-2020, 09:16 AM
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Quote:
Originally Posted by Bobby Winds View Post
Just to clear up the confusion, Sam's Club 29's are really Group 31 batteries......for some stupid reason they are using the 29 as a model # and not a Group size...... did I clear that up or make it worse.....
Hey Bobby, just looked in the website and they are listed as group 31's.
That's the wet cell that I looked at, I see they are moving them at 79.00 which is a steal. I have 5 of them, good battery

Edit- went back and looked, they group 29 agm are in fact 29. There is a seperate listing for group 31. And they are only 159 now
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