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Dec 30th, 2023
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 Lithium Cranking Battery
#15387547
04/29/25 11:20 AM
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Joined: Aug 2005
Posts: 312
bass_n_fire
OP
Angler
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OP
Angler
Joined: Aug 2005
Posts: 312 |
I’m really leaning towards switching to lithium batteries for my boat. I’m liking the weight savings and the longevity of not replacing batteries every 2 years. I’m looking for a budget friendly set up. I’ve got a 2000 Cobra, 36v trolling motor, 2 HDS 12’s, plus the usual components in the boat. Also looking into adding power poles, hence why I’m looking into lighter batteries. If anyone has any suggestions. Not necessarily the cheapest, just best bang for the buck. Also, what is everyone using for the cranking battery?
Last edited by bass_n_fire; 04/29/25 11:47 AM.
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Re: Lithium Cranking Battery
[Re: bass_n_fire]
#15387593
04/29/25 12:36 PM
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Joined: Mar 2003
Posts: 11,597
Fishin' Nut
TFF Guru
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TFF Guru
Joined: Mar 2003
Posts: 11,597 |
Is an outboard designed to charge a lithium battery would be my first question.
Waiting on Bob Davis' next selfie
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Re: Lithium Cranking Battery
[Re: Fishin' Nut]
#15387618
04/29/25 12:56 PM
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Joined: Nov 2014
Posts: 27,452
SteezMacQueen
TFF Guru
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TFF Guru
Joined: Nov 2014
Posts: 27,452 |
Is an outboard designed to charge a lithium battery would be my first question. The battery BMS has a lot to do with wether or not a motor is compatible.
Eat. Sleep. Fish.
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Re: Lithium Cranking Battery
[Re: Fishin' Nut]
#15387623
04/29/25 01:02 PM
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Joined: Apr 2017
Posts: 15,125
tmd11111
TFF Guru
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TFF Guru
Joined: Apr 2017
Posts: 15,125 |
Is an outboard designed to charge a lithium battery would be my first question. Outboards are not designed to charge any specific battery. The all have a charging system, be it a stator/rotor or alternator and have a regulator to control voltage output. Lithium cranking batteries have a BMS (battery management system, aka a small circuit board to control voltage/amperage input/output. The only outboard manufacturer out there that has approved the use of lithium batteries is Mercury. Funny thing is they were the most adamant against the use of lithium until their parent company Brunswick Marine purchased ReLion Lithium.
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Re: Lithium Cranking Battery
[Re: tmd11111]
#15387699
04/29/25 02:16 PM
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Joined: Aug 2005
Posts: 312
bass_n_fire
OP
Angler
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OP
Angler
Joined: Aug 2005
Posts: 312 |
So, I’m assuming that since my boat/ motor is 25 years old, it’s not recommended to run a lithium cranking battery?
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Re: Lithium Cranking Battery
[Re: bass_n_fire]
#15387709
04/29/25 02:30 PM
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Joined: Apr 2017
Posts: 15,125
tmd11111
TFF Guru
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TFF Guru
Joined: Apr 2017
Posts: 15,125 |
So, I’m assuming that since my boat/ motor is 25 years old, it’s not recommended to run a lithium cranking battery? What motor
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Re: Lithium Cranking Battery
[Re: bass_n_fire]
#15387730
04/29/25 02:56 PM
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Joined: Mar 2011
Posts: 15,608
Bandit 200 XP
TFF Guru
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TFF Guru
Joined: Mar 2011
Posts: 15,608 |
I run a Ionic 125 amp 12 v on a 2002 Yamaha 200 with Livescope , never had a problem
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Re: Lithium Cranking Battery
[Re: bass_n_fire]
#15388341
04/30/25 01:55 AM
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Joined: Nov 2005
Posts: 202
MCIPinkie
Outdoorsman
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Outdoorsman
Joined: Nov 2005
Posts: 202 |
I've been very pleased with my Ionic's. 3 - 50AH for TM, 1 - 125 AH for all else.
Call Andy at Drewcraft for accurate information.
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Re: Lithium Cranking Battery
[Re: bass_n_fire]
#15388389
04/30/25 02:53 AM
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Joined: Jan 2019
Posts: 404
Sgrem
Angler
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Angler
Joined: Jan 2019
Posts: 404 |
I have had lithium starting battery on:
1999 Yamaha 150
2004 Tohatsu 90
2013 Etec 130
2006 Mercury 90 (currently own)
2008 Suzuki 250
2021 Suzuki 300 (currently own)
.....for over 12 years.... never had a battery or starting issue with any of them....for several 1000s of hours.
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Re: Lithium Cranking Battery
[Re: SteezMacQueen]
#15388444
04/30/25 08:28 AM
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Joined: Dec 2007
Posts: 17,679
bloo_rainger
TFF Guru
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TFF Guru
Joined: Dec 2007
Posts: 17,679 |
Is an outboard designed to charge a lithium battery would be my first question. The battery BMS has a lot to do with wether or not a motor is compatible. So I don’t know what that means… How do you I figure that out? 
ALL HAIL TRUMP
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