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Lithium trolling motor battery options

Old 09-04-2020, 11:18 AM
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Default Lithium trolling motor battery options

I have a 36 volt LithiumPro trolling motor battery that's been great but it just died and is unfortunately out of warranty. While wanting to go back with LithiumPro, I thought it best to do some researching on Relion, LBP, Battleborn, Dakota before I did anything. I'm curious as to why there is such a price difference on some of them considering that some of them have fairly similar max output, amp hours, warranty, etc. For example, you can get a 36v Dakota with more amp hours, longer warranty and even includes a 36v charger for quite a bit less. Is it quality of the cells, the BMS, or something else???
Old 09-04-2020, 12:05 PM
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Originally Posted by sideeffect11 View Post
I have a 36 volt LithiumPro trolling motor battery that's been great but it just died and is unfortunately out of warranty. While wanting to go back with LithiumPro, I thought it best to do some researching on Relion, LBP, Battleborn, Dakota before I did anything. I'm curious as to why there is such a price difference on some of them considering that some of them have fairly similar max output, amp hours, warranty, etc. For example, you can get a 36v Dakota with more amp hours, longer warranty and even includes a 36v charger for quite a bit less. Is it quality of the cells, the BMS, or something else???
I would be worried about the quality of the BMS. However, I do wonder about LP's pricing. For example, their 12V 80AH battery is now only $100 cheaper than it was 5 years ago, while lithium cell prices have come down quite. a lot during that time.
Old 09-04-2020, 01:51 PM
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Following along. I haven’t made the jump to lithium yet and I need to educate myself.
Old 09-04-2020, 02:00 PM
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Look at Ionic. I am very pleased. Ionic has an app and you can monitor your batteries status right from your phone.
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Old 09-04-2020, 02:22 PM
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Iv got a single 36v LBP and their charger. Awesome stuff and the the staff was over the top helpful with anything I had questions with. Nick is a world of knowledge and they are awesome
Old 09-04-2020, 02:43 PM
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I spoke to Ionic but ended up going with relion for trolling motor batteries and a lithium battery power house. No complaints with either.
Old 09-04-2020, 04:21 PM
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OP, it would be interesting to learn how long your lithium battery lasted? Thanks in advance for the knowledge.
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Old 09-04-2020, 04:58 PM
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Are you guys running all lithium’s? Trolling motor, starting and house?
Old 09-04-2020, 06:55 PM
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I've gotten good reports on the Relion's & I'm using them for my house & trolling motor for the new boat.
Old 09-05-2020, 06:31 AM
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Thanks for the input gentlemen. I’ll look into the companies y’all mentioned.

Bayfly: to your question, the original LithiumPro lasted 5 years. Surprisingly, the two lead acid batts I have for house and cranking have lasted longer!



Old 09-05-2020, 06:43 AM
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Can you tell us how many times you charge the LP batteries and how deeply you discharge them?
From the rhetoric, I thought the assumption was that these batteries would last 2000 charges or ten years. Thats what the sales pitch was anyway. You could justify their expense because they would last so long.

Old 09-05-2020, 07:29 AM
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Originally Posted by sideeffect11 View Post
Thanks for the input gentlemen. I’ll look into the companies y’all mentioned.

Bayfly: to your question, the original LithiumPro lasted 5 years. Surprisingly, the two lead acid batts I have for house and cranking have lasted longer!

Five years is rough for their costs. I hav been lucky to have Odyseeys last 10 years.
Old 09-05-2020, 07:53 AM
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Originally Posted by sideeffect11 View Post
Thanks for the input gentlemen. I’ll look into the companies y’all mentioned.

Bayfly: to your question, the original LithiumPro lasted 5 years. Surprisingly, the two lead acid batts I have for house and cranking have lasted longer!
What charger were you using?

Unless you cycled the thing everyday since you purchased, no where near the claimed life span and cycles...I’d be at least pressuring LP for a pro rated replacement.

I’ve got 4 relion 80AH in one of my rigs...no complaints.
Old 09-05-2020, 08:54 AM
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I almost got the Dakotas but after reading a bunch of their reviews I went with the Ionics. I’ll have to see how it all pans out but the Ionics have a really big following in the bass fishing world.
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Old 09-05-2020, 08:55 AM
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I've been researching a 36 volt system for my trolling motor. My current batteries should be good for another year, but when they need replacing, I was going with lithium. Just can't decide on a single battery or 3 in series. As others have noted, I am extremely concerned with how long your battery lasted and how many charge cycles you put it through. They are advertised to last for a few thousand charge cycles which would be years and years of use even if they were charged every day. What charger were you using? Was it rated for LiFePo4? Many people will tell you that you that any charger will work, but does that shorten the life? I can't get a straight answer to that....
Old 09-05-2020, 09:47 AM
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Originally Posted by FishLife View Post
I've been researching a 36 volt system for my trolling motor. My current batteries should be good for another year, but when they need replacing, I was going with lithium. Just can't decide on a single battery or 3 in series. As others have noted, I am extremely concerned with how long your battery lasted and how many charge cycles you put it through. They are advertised to last for a few thousand charge cycles which would be years and years of use even if they were charged every day. What charger were you using? Was it rated for LiFePo4? Many people will tell you that you that any charger will work, but does that shorten the life? I can't get a straight answer to that....
You can probably get away with it, but, if you have a smart charger with a desulphate mode, it can ruin a lithium. So they say. You would have to monitor the charge and shut off before it goes into a maintenance mode. I purchased a Dual Pro charger with a lithium profile. It has to be special ordered that way. If not sure, check with the manufacturer you are purchasing from.
Old 09-05-2020, 11:52 AM
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Originally Posted by vandlor View Post
You can probably get away with it, but, if you have a smart charger with a desulphate mode, it can ruin a lithium. So they say. You would have to monitor the charge and shut off before it goes into a maintenance mode. I purchased a Dual Pro charger with a lithium profile. It has to be special ordered that way. If not sure, check with the manufacturer you are purchasing from.
I've researched a lot of chargers that some people on here will say are fine for LiFePo4 batteries, but when you read the manuals, they'll say something to the affect of "For lead acid batteries only" or "For AGM, Gel, Wet Cell, Lead Acid batteries only". I am running a 120ah lithium as my house battery and I use NOCO Genius g15000 to charge it, it has a lithium 12v mode. I'm not hung up NOCO, but they do not make a 36 volt lithium battery charger, or at least I can't find one. Most 36 volt chargers that I've seen are shore chargers in the 2-5 amp range. There are some shore chargers out there that put out 8 or more amps, Dakota being one, but I'd prefer an onboard solution.
Old 09-06-2020, 02:52 AM
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One of the biggest contributors to shorten life spans on a lithium battery is storing it fully charged . All lithium will last much longer if stored below full charge . Anywhere between 25% to 50% is fine . Do not keep a float or maintenance charge on them . Also keeping them away from heat also helps (helps all batteries ) . If you are going to use a lead charger use the gel setting if it has one . Gel settings charge to a lower voltage which is good .
Old 09-06-2020, 03:26 AM
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Jeez! I can't see a Lion battery any time soon with the high $$$. I normally get about 4 years from a set of standard batteries so that's 2 sets and I'm >80. Even for a young one, what are the chances of keeping your boat >10 years? - obviously another question you have to ask.
Old 09-06-2020, 06:07 AM
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Originally Posted by whatta life View Post
One of the biggest contributors to shorten life spans on a lithium battery is storing it fully charged . All lithium will last much longer if stored below full charge . Anywhere between 25% to 50% is fine . Do not keep a float or maintenance charge on them . Also keeping them away from heat also helps (helps all batteries ) . If you are going to use a lead charger use the gel setting if it has one . Gel settings charge to a lower voltage which is good .
Then why are EPIRB li-ion stored full charge? And have a 5+ year shelf life?

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