Author Topic: Lithium batteries  (Read 876 times)

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Offline Crestliner16

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Lithium batteries
« on: April 27, 2021, 02:45:41 AM »
I'm considering going to lithium batteries. I have a 16 foot aluminum  boat, nothing fancy. I have a 24 volt 80# Terrova and using two 31 group wet cells. These are dedicated to the TM. Are lithium batteries that much better? Any input is appreciated.


Offline rnvinc

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Re: Lithium batteries
« Reply #1 on: April 28, 2021, 09:39:14 PM »
The 2 biggest advantages Ive read is weight reduction and more usable power (they run at full power until they shut off vs a wet cell that slows down over the run time  ...

Disadvantages are cost and not every charger will work with lithium  ...

Rickie

Offline Papaco

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Re: Lithium batteries
« Reply #2 on: May 04, 2021, 08:04:15 AM »
Crestliner,

I have a 1648 (16') Tracker and recently had to upgrade my AGMs.  They were Optima Blue top D34.
I run a outboard jet and weight was the main reason for switching to Lithium.  Saved 50lbs.
This is what I am running from 2 batteries:
24v trolling motor Minn Kota Terrova 80lb
Started a 40hp outboard motor
Powered electronic Humminbird Helix 9 Gen3
Some LED navigation lights

I only have 5 trips on the lithium setup so far I do not have much data.  So far I am happy with them.
It does worry me that lithium's will run and just shut off like Rickie described.  I went with similar sized lithiums, 50AHs, & should have gone with the next size up for peace of mind.

But they are so light.  I was able to pick one up like palming a basketball.



Offline D S

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Re: Lithium batteries
« Reply #3 on: May 04, 2021, 10:47:54 AM »
are you running just one 54 ah for  80 lb terrova trolling motor?
stgr

Offline D S

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Re: Lithium batteries
« Reply #4 on: May 04, 2021, 11:22:12 AM »
i am curious as my propsed plan is  to run one 24 v 50 ah  lthium on 80 lb terrova for trolling motor
 and one seperate 12v for starting and electronics,wonder if anyone has done same ?? comments?
stgr

Offline Papaco

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Re: Lithium batteries
« Reply #5 on: May 04, 2021, 12:28:21 PM »
I'm running 2 50AH lithium batteries in a 24v configuration for the trolling motor.  I couldn't put a single 24v due to the layout of my boat.

I heard it's not a good idea to run your electronics (fish finders) from a battery used for your starting motor.  Can anyone back me up on this?

Offline D S

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Re: Lithium batteries
« Reply #6 on: May 04, 2021, 04:13:13 PM »
can cause interefence/noise   on the graph when hooked up on same battery
stgr

Offline Crestliner16

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Re: Lithium batteries
« Reply #7 on: May 05, 2021, 04:47:12 PM »
These batteries only operate the Terrova. I have a separate battery for my electronics.
Thanks for the tip. Every little thing helps.

Offline D S

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Re: Lithium batteries
« Reply #8 on: May 06, 2021, 05:18:51 PM »
papaco how long do you get out of the two 50 ah batteries on your trolling motor?? do you care to share model and make of battery
stgr

Offline Papaco

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Re: Lithium batteries
« Reply #9 on: May 06, 2021, 08:48:34 PM »
I don't have enough time using them to provide a full evaluation, but I ran them on my 24v 80lb Minn Kota for 2 hours straight on 4-5 speed and the battery test indicator on motor had 3 out of 4 bars.

Offline Crestliner16

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Re: Lithium batteries
« Reply #10 on: May 06, 2021, 08:56:54 PM »
I think that is fairly accurate. I have the same setup only using lead acid batteries. I tend run pretty fast at times,and we usually fish at least eight hours. I was using 31 group Walmart batteries.  For the money I believe I get a good three years or more. Since one was broken I'm needing new batteries.

Offline D S

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Re: Lithium batteries
« Reply #11 on: May 07, 2021, 09:51:14 AM »
can you guys share make and model of your lithium batteries?
stgr

Offline Papaco

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Re: Lithium batteries
« Reply #12 on: May 07, 2021, 08:07:50 PM »
I went with 2 Chargex 12v 50AH lithium batteries.
Had to get a new charger and went with NOCO Genius GENPRO10X2.


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