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Battery for electronics
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   Fishing Sonar, GPS and Marine Electronics

Posted by bluewingjb
6/5/2019 8:01 AM
Ok so I recently added a Lowrance HDS 8 to my boat. Now I have the 8 and a 9 touch and an HDS 5 I run. Last night I was out for about 3 hours. Went to start the engine and nothing. Noticed the stern light was VERY dim. I did notice the 8 started cutting off and on after being out for about 2 hours so I did shut it off. My question is should I just get a battery solely for my Lowrance units? I will say the battery they are connected to is the cranking battery and its 2 yrs old. I am charging it now and going to get it load tested shortly. I do have a volt meter on my boat and am putting out a good 12.5-13.5 volts. Just looking for thoughts. I did realize that I had my touch 9 unit set to maximum brightness and the same with the 5.. I know running them like that does use more power so that wont happen again. Just looking for some thoughts from my fellow anglers!
Posted by drdetroit
6/5/2019 8:07 AM
I would definitely have the battery checked.

Dr Detroit
Posted by Pop-R
6/5/2019 8:11 AM
I had a similar issue my were cutting off when I would crank the motor. It always cranked fine, but cut off the electronics. turned out to be a weak cell in the battery.
Posted by bluewingjb
6/5/2019 8:19 AM
I am getting the battery load tested later today. Its a Duracell 24M with 800CCA and a max of 1000Amps. Like I said it is 2 yrs old.
Posted by finbully
6/5/2019 11:50 AM
bluewingjb - 6/5/2019 8:19 AM

I am getting the battery load tested later today. Its a Duracell 24M with 800CCA and a max of 1000Amps. Like I said it is 2 yrs old.



Those usually last 1 to 2 years.
Posted by 31airborne
6/5/2019 12:00 PM
Chief - If you use your electronix a lot and if you have the room I'd add a battery just for your sonars. Group 31 if it'll fit.

Recommend adding one of these to your kit - https://www.tacklewarehouse.com/Weego_Jump_Starters/descpage-WEEGOJS... I've had one for three years now and it's been a life-saver (for me and a few stranded boaters). Lotsa peace of mind in these little gizmos.

B (of Army)
Posted by bluewingjb
6/5/2019 12:05 PM
I think I am going with an AGM 31 for it.. Found one that has 1150CCA and 220 minutes of reserve and comes with a 4 yr no questions asked warranty.. Its a little pricey but has all 5 star reviews
Posted by Cowboy Up
6/5/2019 12:07 PM
I had the same thing happen to me, was told to move to Group 31 900+ CCA. I did, and it solved my problem.
Posted by bluewingjb
6/5/2019 12:17 PM
Yeah I am moving up too. It will be a little work to get the bigger battery in but it will fit. Heck I already have a bigger one in there now as I used one of my 31 s for the troll motor over to get the engine started
Posted by derek81
6/5/2019 1:55 PM
Get a group 31 NorthStar and be done
Posted by elwestb
6/5/2019 4:25 PM
derek81 - 6/5/2019 1:55 PM

Get a group 31 NorthStar and be done



Absolutely, what Derek said! That thing is the Mac Daddy of batteries! Pricy and heavier than most batteries but has a five year warranty and you just cannot run it down! I've ran live wells, night lights, three HB 10 in. units all night long and fished again the next day without charging. It doesn't flinch.
Posted by pinsandfins
6/6/2019 1:05 PM
Derek, did you get the marine one with 4 terminals or just the regular group 31 with 2 terminals?
Posted by elwestb
6/6/2019 3:20 PM
pinsandfins - 6/6/2019 1:05 PM

Derek, did you get the marine one with 4 terminals or just the regular group 31 with 2 terminals?


I don't know about Derek but I didn't see any with 4 terminals? I got mine at Batteries Plus on Gunbarrel Rd. It has 2 terminals with a 5 year warranty. I know two other guys that have bought the same battery and they also agree that it is a monster.
Posted by bronzeback45
6/9/2019 1:47 AM
Make sure you have a on board charger of at least 20 amps or more on agms, and plug in after each use.
Posted by bluewingjb
6/11/2019 9:12 AM
Oh I have the charger and ended up getting a x2 group 31 AGM battery from batteriesplus... Its got 220 minutes of reserve power and 1150 CCA and has a 4 yr no questions asked full replacement warranty
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