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Dec 30th, 2023
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 Longer charge time on trolling batteries
#13233407
08/02/19 04:42 PM
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Joined: Aug 2011
Posts: 426
Noojen
OP
Angler
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OP
Angler
Joined: Aug 2011
Posts: 426 |
I’m running a 24V setup with 2 flooded cell deep cycle batteries connected to a two-bank 8 amp charger. It used to take about 4-5 hours after a lake session to fully charge the batteries...now it’s taking upwards of 8-10 hours. I checked the acid levels this morning and both were full. Any ideas?
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 Re: Longer charge time on trolling batteries
[Re: Noojen]
#13233408
08/02/19 04:43 PM
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Joined: Jan 2009
Posts: 50,023
fouzman
Methuselah
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Methuselah
Joined: Jan 2009
Posts: 50,023 |
How old are the batteries?
"Things turn out best for those who make the best of the way things turn out" - Zachary Troy Schrah - a young man with vision far beyond his years.
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Re: Longer charge time on trolling batteries
[Re: fouzman]
#13233415
08/02/19 04:47 PM
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Joined: Aug 2011
Posts: 426
Noojen
OP
Angler
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OP
Angler
Joined: Aug 2011
Posts: 426 |
How old are the batteries? Coming up on 4 years old...I charge before and after every visit to the lake.
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13233427
08/02/19 04:55 PM
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Joined: Jan 2009
Posts: 50,023
fouzman
Methuselah
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Methuselah
Joined: Jan 2009
Posts: 50,023 |
Probably near time to replace them. That or your charger is going bad.
"Things turn out best for those who make the best of the way things turn out" - Zachary Troy Schrah - a young man with vision far beyond his years.
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13233447
08/02/19 05:24 PM
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Joined: Aug 2011
Posts: 426
Noojen
OP
Angler
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OP
Angler
Joined: Aug 2011
Posts: 426 |
Is there a way to determine if it’s one or the other?
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13233452
08/02/19 05:32 PM
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Joined: Feb 2006
Posts: 929
kirbydog
Pro Angler
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Pro Angler
Joined: Feb 2006
Posts: 929 |
Do you notice when you're fishing that the batteries draw down quicker then before? Thats how I can tell that
I'm gonna need new batteries soon.
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13233454
08/02/19 05:33 PM
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Joined: Apr 2008
Posts: 40,848
CCTX
mapquest
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mapquest
Joined: Apr 2008
Posts: 40,848 |
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13233472
08/02/19 05:50 PM
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Joined: May 2018
Posts: 176
Tyler822
Outdoorsman
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Outdoorsman
Joined: May 2018
Posts: 176 |
A lot of times when a battery goes bad it will kinda bow out on the sides. Every one I’ve had go bad has done that.
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13234175
08/03/19 01:46 PM
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Joined: Jun 2014
Posts: 63
Roundup
Outdoorsman
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Outdoorsman
Joined: Jun 2014
Posts: 63 |
I can tell you when I had Deep Cycle Batteries in my previous boat, I would usually only get about two years out of them. Maybe it was my boat and charging system. My new boat has AGM's and I got 6 years out of the last set. Just my opinion.
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13234176
08/03/19 01:48 PM
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Joined: Jul 2009
Posts: 1,342
EastTexasBassin
Extreme Angler
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Extreme Angler
Joined: Jul 2009
Posts: 1,342 |
4 years is pretty damn good, time for a pair of new ones now.
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13234179
08/03/19 01:53 PM
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Joined: Jan 2007
Posts: 10,559
Jarrett Latta
TFF Guru
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TFF Guru
Joined: Jan 2007
Posts: 10,559 |
4 years is pretty good for a normal lead battery. Probably time for a couple new ones. Sam's club has the Duracell 31 AGM for $159 I believe. Best bang for your buck on a trolling motor battery.
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13234190
08/03/19 02:06 PM
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Joined: Feb 2018
Posts: 466
TajChauvin
Angler
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Angler
Joined: Feb 2018
Posts: 466 |
My first step would be to buy a battery tester (water tester) and test each cell to see if any are dead. If none are dead you can try and recover them with a 2.5 amp charger over a week long period or so. Otherwise do what everyone else says and replace them.
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13234212
08/03/19 02:38 PM
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Joined: Apr 2004
Posts: 375
irbf
Angler
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Angler
Joined: Apr 2004
Posts: 375 |
I wouldn't mix wet cell and AGM on 24 volt system. They don't charge the same.
2008 BassCat Puma, 250 ProXS
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Re: Longer charge time on trolling batteries
[Re: EastTexasBassin]
#13234224
08/03/19 02:56 PM
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Joined: Feb 2006
Posts: 424
jcwebb70
Angler
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Angler
Joined: Feb 2006
Posts: 424 |
4 years is pretty damn good, time for a pair of new ones now. This, 2-3 years is average for flooded, I usually got 4-5 before one went bad. If one goes bad the batteries it's connected to will often be right behind it. You can have them tested after charging to see which one is bad, but I found if I didn't replace all I was just doing the same work several times vs one and done.
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Re: Longer charge time on trolling batteries
[Re: Noojen]
#13234335
08/03/19 05:51 PM
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Joined: Dec 2011
Posts: 8,543
Oldrabbit
TFF Celebrity
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TFF Celebrity
Joined: Dec 2011
Posts: 8,543 |
If your battery charger has a recondition mode on it use it first and see if that helps. It does a desulfation of the crystals in the battery and can/will make the battery take a better charge and last longer. I do this about every 30 recharges or at least once a year if I don't go fishing as much as I want to .
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