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Lithium Cranking and Trolling Motor Batteries

Posted on 9/29/21 at 12:52 pm
Posted by dawg23
Baton Rouge, La
Member since Jul 2011
5065 posts
Posted on 9/29/21 at 12:52 pm
A few months ago there was a lot of discussion here about advances in lithium battery technology.

Has anybody 100% converted their fishing boat to lithium ?

If so, how is it working out ?
Posted by shawnlsu
Member since Nov 2011
23682 posts
Posted on 9/29/21 at 1:13 pm to
CBR90000000000000000 did, I believe. He may chime in here, you've set off his bat signal.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
66763 posts
Posted on 9/29/21 at 2:04 pm to
I have a friend who did. He seems to love them. Im still to scared of them to swap. I can picture about what a battery fire in the console of fiberglass boat would look like. Ill give it another 5 years before I make the change.
Posted by LEASTBAY
Member since Aug 2007
14249 posts
Posted on 9/29/21 at 2:14 pm to
I use 3 small lithiums for my trolling motor. It's on a 21 foot frontier so it's not pushing around the largest boat. Has enough capacity for the whole day. I forget the model but they're on Amazon for about $70. If I had the trolling motor with less batteries or a much larger boat I don't think this would be an option. Just got a new starting/boat battery an AGM Energizer from Sam's. Probably the best deal right now at about $140.
Posted by cbr900racer22
City of Central, LA.
Member since Sep 2009
1304 posts
Posted on 9/29/21 at 4:05 pm to
Yes,Ionics. Been over a year now, maybe 2.
Posted by armsdealer
Member since Feb 2016
11490 posts
Posted on 9/29/21 at 11:56 pm to
I went 4 days on my 36v 80ah bank with my trolling motor without plugging in and never lost power. They are worth the price alone with the weight loss, the extra power is gravy. I still have a traditional marine group 31 battery as my cranking battery.
Posted by armsdealer
Member since Feb 2016
11490 posts
Posted on 9/29/21 at 11:57 pm to
If you have the stomach do deal with ordering direct from the manufacture in China you can save a bundle, I paid less than 1/2 what batteries would have cost from a US reseller.
Posted by Elusiveporpi
Below I-10
Member since Feb 2011
2572 posts
Posted on 9/30/21 at 9:23 am to
Im 100% lithium, I love it. T motor never gets weak and i cant kill them.

I did it for weight savings in the skiff.
Posted by Elusiveporpi
Below I-10
Member since Feb 2011
2572 posts
Posted on 9/30/21 at 9:28 am to
quote:

If you have the stomach do deal with ordering direct from the manufacture in China you can save a bundle, I paid less than 1/2 what batteries would have cost from a US reseller.


I did this but they crapped out in 3 years. I went with the bass pro model this time, they are made by Relion, which is a very respected brand.
Posted by AlxTgr
Kyre Banorg
Member since Oct 2003
81576 posts
Posted on 9/30/21 at 9:46 am to
Still haven't installed my TM lithiums. May look for a way to convert them to prongs. Getting them hooked to everything with bolts is a PITA.
Posted by hogdaddy
Krotz Springs
Member since Feb 2010
5153 posts
Posted on 9/30/21 at 10:27 am to
This is from the Yamaha site:

The final word on what type/size/rating of battery you must use is in your outboard’s owner’s manual – for example, Yamaha Marine Group specifies flooded-cell batteries to avert potential overcharging gel-cell or AGM during extend periods of high-speed engine operation.
Posted by bocro
Member since Feb 2021
59 posts
Posted on 9/30/21 at 10:52 am to
My cranking battery is still SLA, but I bought 2 LiFePO4 12v 100ah batteries for my trolling motor and the weight savings are worth the price in my Alweld 1756. They weight distribution is better with a 12 gal tank and all 3 batteries near the stern.
Posted by ElDawgHawg
L.A. (lower Arkansas)
Member since Nov 2012
2970 posts
Posted on 9/30/21 at 10:54 am to
Been eying Lithium batteries from afar. Just getting some weight out of the back would be a big plus.... extra power would be a bonus.
Posted by TxWadingFool
Middle Coast
Member since Sep 2014
4361 posts
Posted on 10/1/21 at 11:04 pm to
Had mine about a year, cranking and 24v trolling motor. Weight saving is unreal, trolling motor battery last forever.
Posted by dawg23
Baton Rouge, La
Member since Jul 2011
5065 posts
Posted on 10/2/21 at 6:00 am to
I appreciate everybody's input. I'm repowering my boat (whenever the dealer gets my engine) and have been thinking this might be the time to move up to Lithium.


quote:

May look for a way to convert them to prongs.
AlxTgr: Forgive my redneck stupidity, but what does this mean ?
Posted by CFDoc
Member since Jan 2013
2092 posts
Posted on 10/2/21 at 8:51 am to
I converted TM over to lithium’s.

Best decision I’ve made. I did Relion 100 A-hr.
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