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re: Someone please school me on marine batteries

Posted on 2/8/24 at 11:23 am to
Posted by AlxTgr
Kyre Banorg
Member since Oct 2003
87347 posts
Posted on 2/8/24 at 11:23 am to
quote:

Your have some sort of filter between your graphs and the trolling motor?
Graphs are on the crank battery and the TM is on a 24 volt system of two different lithiums.
Posted by UFownstSECsince1950
Member since Dec 2009
32814 posts
Posted on 2/8/24 at 11:39 am to
You guys are doing way more than me and need the extra juice.

I found the 31 marine batteries at oreilly’s for $100, and that should be more than what I need for this set-up. Can’t justify the extra money for lithiums or agms
Posted by AwgustaDawg
CSRA
Member since Jan 2023
14013 posts
Posted on 2/8/24 at 11:48 am to
quote:

Graphs are on the crank battery and the TM is on a 24 volt system of two different lithiums


Ahhh...I have done it that way but I have my graphs on 2 batteries alone now...never drug the cranking battery down but never was comfortable with it powering the graphs.
Posted by TutHillTiger
Mississippi Alabama
Member since Sep 2010
49830 posts
Posted on 2/10/24 at 9:17 pm to
Do not buy interstate batteries. They used to be great American batteries but Chinese bought them out few years ago and they are shite now. Cost me a a damn 225 few years ago. (Long story)
Posted by Wtodd
Tampa, FL
Member since Oct 2013
68544 posts
Posted on 2/12/24 at 8:52 am to
quote:

Graphs are on the crank battery and the TM is on a 24 volt system of two different lithiums

quote:

Ahhh...I have done it that way but I have my graphs on 2 batteries alone now...never drug the cranking battery down but never was comfortable with it powering the graphs.


A friend of mine isolated his graphs on a lithium and he's happy with it.
Posted by AlxTgr
Kyre Banorg
Member since Oct 2003
87347 posts
Posted on 2/12/24 at 9:12 am to
quote:

Ahhh...I have done it that way but I have my graphs on 2 batteries alone now...never drug the cranking battery down but never was comfortable with it powering the graphs.


With this Ionic, my crank battery reads in the 90s at the end of the day. They must really charge fast when running the engine. I have even considered swapping my 3 bank for a 2 bank, as I do not think I will ever need to charge my crank battery again. Getting back to the late 80s and early 90s when all we had was one flasher. We never had to charge the crank battery.
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