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2 stroke Mercury cranking battery advice
#15026285
03/24/24 11:37 PM
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Joined: Nov 2017
Posts: 850
davidsears
OP
Pro Angler
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OP
Pro Angler
Joined: Nov 2017
Posts: 850 |
I have a 22 year old Mercury 200 EFI and I just added two 12" Lowrance Carbons and I'm thinking about getting Active Target FFS. My cranking battery is a 4 year old Interstate AGM group 31, that I just have a feeling won't last to long, especially with those bigger graphs compared to my 7" and 9" are going to put more of a drain on my battery. I've read all the threads about the X2 Agm and the Ionic 125 cranking battery. I'd like to hear from guys that have older two strokes that don't have as powerful alternator's as the newer 4 strokes that have added bigger graphs and FFS on what they found they needed for a cranking battery. I'd hate to spend $600 to $1200 to find out that I would be better off having a dedicated battery for electronics and just a $300 AGM for my cranking battery. Any help and advice would be appreciated. I just want to make a good educated decision when it's time. Money is a concern.
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15026297
03/24/24 11:50 PM
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Joined: May 2007
Posts: 40,444
WAWI
TFF Guru
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TFF Guru
Joined: May 2007
Posts: 40,444 |
The dedicated battery is the way to go.
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15026311
03/25/24 12:11 AM
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Joined: Jun 2020
Posts: 11,157
grandbassslayer
TFF Guru
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TFF Guru
Joined: Jun 2020
Posts: 11,157 |
I had the interstate 31agm and it never lasted. Went to the X2 AGM for my starting and 3 graphs and it does fine. All that said I’ll definitely go lithium with my trolling batteries need replacing.
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Re: 2 stroke Mercury cranking battery advice
[Re: grandbassslayer]
#15026316
03/25/24 12:14 AM
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Joined: Nov 2017
Posts: 850
davidsears
OP
Pro Angler
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OP
Pro Angler
Joined: Nov 2017
Posts: 850 |
I had the interstate 31agm and it never lasted. Went to the X2 AGM for my starting and 3 graphs and it does fine. All that said I’ll definitely go lithium with my trolling batteries need replacing. What year is your motor and is it a 2 or 4 stroke?
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15026322
03/25/24 12:18 AM
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Joined: Jun 2020
Posts: 11,157
grandbassslayer
TFF Guru
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TFF Guru
Joined: Jun 2020
Posts: 11,157 |
I had the interstate 31agm and it never lasted. Went to the X2 AGM for my starting and 3 graphs and it does fine. All that said I’ll definitely go lithium with my trolling batteries need replacing. What year is your motor and is it a 2 or 4 stroke? 2020 4 stroke 250 pro xs
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15026346
03/25/24 12:45 AM
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Joined: Feb 2008
Posts: 9,956
Dan21XRS
TFF Celebrity
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TFF Celebrity
Joined: Feb 2008
Posts: 9,956 |
"The problem with having a sense of humor is often that people you use it on aren't in a very good mood"... Lou Holtz
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15026415
03/25/24 01:34 AM
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Joined: May 2009
Posts: 20
Edge13
Outdoorsman
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Outdoorsman
Joined: May 2009
Posts: 20 |
Odyssey PC2150 is a beast of a battery. That said, I run two Group 31 batteries. One is dedicated to the outboard, and the other to electronics.
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15026444
03/25/24 02:02 AM
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Joined: Nov 2017
Posts: 850
davidsears
OP
Pro Angler
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OP
Pro Angler
Joined: Nov 2017
Posts: 850 |
I don't have room to run two cranking batteries because the oil tank for the two stroke takes up a lot of space. I'll look into the Odyssey. The X2 is a 75 lbs battery and I hate to add that kind of weight, and I'd like to go lithium but the $ is a big concern since I just got a Ghost TM and the two new graphs.
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Re: 2 stroke Mercury cranking battery advice
[Re: Dan21XRS]
#15026450
03/25/24 02:05 AM
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Joined: Nov 2017
Posts: 850
davidsears
OP
Pro Angler
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OP
Pro Angler
Joined: Nov 2017
Posts: 850 |
Do you have an older 2 stroke? What graphs are you running? Do you have FFS?
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15026459
03/25/24 02:15 AM
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Joined: Mar 2002
Posts: 1,440
prosise
Extreme Angler
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Extreme Angler
Joined: Mar 2002
Posts: 1,440 |
Dedicated starting battery for the engine, livewells, lights. Separate battery for electronics, and batteries for the trolling motor. Lithium batteries are getting much cheaper. I have three EG4 100ah batteries for the TM. And one for electronics. They are very responsible in price right now with a 5 year warranty. For 239 each, they are solid. Been running then for 2 years, 3 days a week fishing. Game changer going to lithium. But to answer your question, yes you should get the electronics off the starting battery. Look up the current draw on all your electronics, and do a current calculation to see how much they use over time. EG4 lithium https://signaturesolar.com/eg4-wp-lithium-battery-12v-100ah/
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Re: 2 stroke Mercury cranking battery advice
[Re: prosise]
#15026496
03/25/24 02:36 AM
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Joined: Nov 2017
Posts: 850
davidsears
OP
Pro Angler
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OP
Pro Angler
Joined: Nov 2017
Posts: 850 |
Dedicated starting battery for the engine, livewells, lights. Separate battery for electronics, and batteries for the trolling motor. Lithium batteries are getting much cheaper. I have three EG4 100ah batteries for the TM. And one for electronics. They are very responsible in price right now with a 5 year warranty. For 239 each, they are solid. Been running then for 2 years, 3 days a week fishing. Game changer going to lithium. But to answer your question, yes you should get the electronics off the starting battery. Look up the current draw on all your electronics, and do a current calculation to see how much they use over time. EG4 lithium https://signaturesolar.com/eg4-wp-lithium-battery-12v-100ah/What battery are you using for the electronics? Is it a 12v or 16 volt lithium?
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15026497
03/25/24 02:37 AM
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Joined: May 2007
Posts: 40,444
WAWI
TFF Guru
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TFF Guru
Joined: May 2007
Posts: 40,444 |
Amp outdoors has a chart you can look at the draw. Ffs is gonna be about 1.5 and the 12s probably 3 each.
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Re: 2 stroke Mercury cranking battery advice
[Re: Dan21XRS]
#15026502
03/25/24 02:44 AM
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Joined: Mar 2012
Posts: 1,699
4Weight
Extreme Angler
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Extreme Angler
Joined: Mar 2012
Posts: 1,699 |
100 percent for the cranker
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Re: 2 stroke Mercury cranking battery advice
[Re: WAWI]
#15026634
03/25/24 12:10 PM
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Joined: Nov 2017
Posts: 850
davidsears
OP
Pro Angler
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OP
Pro Angler
Joined: Nov 2017
Posts: 850 |
Amp outdoors has a chart you can look at the draw. Ffs is gonna be about 1.5 and the 12s probably 3 each. Thanks, I'll check that out.
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15027296
03/25/24 10:57 PM
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Joined: Jan 2004
Posts: 16,868
ezbassin
TFF Guru
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TFF Guru
Joined: Jan 2004
Posts: 16,868 |
AGM Decka made by East Penn. Group 31 if you don't want to spend the $$$ for a Lithium.
Last edited by ezbassin; 03/25/24 10:58 PM.
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15027308
03/25/24 11:16 PM
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Joined: Jul 2013
Posts: 2,602
RCarter
Extreme Angler
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Extreme Angler
Joined: Jul 2013
Posts: 2,602 |
Been there done that with the X2......worked great for a couple years and then completely died after warranty ran out of course.... Do yourself a favor and go Ionics 125 Lithium......just sayin
WORK HARD.....FISH HARDER!
GOD is Great...BEER is Good...and PEOPLE are CrAZy billy currington
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15027323
03/25/24 11:28 PM
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Joined: Jul 2003
Posts: 3,361
McLovin’
TFF Team Angler
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TFF Team Angler
Joined: Jul 2003
Posts: 3,361 |
X2 AGM- won’t fool with it again
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Re: 2 stroke Mercury cranking battery advice
[Re: McLovin’]
#15027384
03/26/24 12:45 AM
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Joined: Apr 2017
Posts: 12,204
tmd11111
TFF Guru
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TFF Guru
Joined: Apr 2017
Posts: 12,204 |
X2 AGM- won’t fool with it again My X2 couldn't hang with my graph setup. Splurge the $200 more and get an Ionic 125a and not fool with it again for an even longer time.
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Re: 2 stroke Mercury cranking battery advice
[Re: davidsears]
#15027390
03/26/24 12:49 AM
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Joined: Jun 2019
Posts: 160
LFA17
Outdoorsman
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Outdoorsman
Joined: Jun 2019
Posts: 160 |
2014 Pro XS 250 2 stroke, 2014 Ranger Z521c, Last year new HDS 12 carbon on console, new HDS 12 carbon on bow and active target, new Helix 12 on bow for 360. Replaced starter battery with biggest x2 agm. Weighs about 70 pounds. I think it is 125 ah plus. Couldn't last a day. Engine wouldnt start after about 5 hours. Added Dakota Lithium 60 ah as dedicated bow HDS and active target power. No more problems and active target is quite a bit clearer. Active target uses lots of power.
Ranger Z521C Mercury ProXS 250 LFA Bass Club Boomer Sooner
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Re: 2 stroke Mercury cranking battery advice
[Re: tmd11111]
#15027407
03/26/24 01:01 AM
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Joined: Sep 2011
Posts: 5,418
Minner Bucket
TFF Celebrity
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TFF Celebrity
Joined: Sep 2011
Posts: 5,418 |
X2 AGM- won’t fool with it again My X2 couldn't hang with my graph setup. Splurge the $200 more and get an Ionic 125a and not fool with it again for an even longer time. My 31 X2 can’t hang with running the scope all day so Lithium is in my near future.
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Re: 2 stroke Mercury cranking battery advice
[Re: WAWI]
#15027449
03/26/24 02:06 AM
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Joined: Jan 2005
Posts: 799
B.K.S.
Pro Angler
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Pro Angler
Joined: Jan 2005
Posts: 799 |
The dedicated battery is the way to go. This! I have an Iconic lithium for my electronics and an X2 AGM cranking. The Iconic is great, buy something other than an X2 though.
B.K.S.
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Re: 2 stroke Mercury cranking battery advice
[Re: LFA17]
#15027485
03/26/24 02:47 AM
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Joined: Nov 2017
Posts: 850
davidsears
OP
Pro Angler
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OP
Pro Angler
Joined: Nov 2017
Posts: 850 |
2014 Pro XS 250 2 stroke, 2014 Ranger Z521c, Last year new HDS 12 carbon on console, new HDS 12 carbon on bow and active target, new Helix 12 on bow for 360. Replaced starter battery with biggest x2 agm. Weighs about 70 pounds. I think it is 125 ah plus. Couldn't last a day. Engine wouldnt start after about 5 hours. Added Dakota Lithium 60 ah as dedicated bow HDS and active target power. No more problems and active target is quite a bit clearer. Active target uses lots of power. Thanks everyone. Thank you LFA17, because this helps a lot since you have a 2 stroke. I want to make sure I get it right the first time.
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