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#12729737 - 04/24/18 11:36 PM bad gut feeliing about my boat batteries...
timbertoes Offline
Extreme Angler

Registered: 08/07/09
Posts: 1625
Loc: Van Alstyne
Having let the boat sit for over a year+ ..
When I charge the batts using the onboard charger, even after getting a green led then three, four days later, start charging again, almost full bank of red leds, takes all night to go green again.

Interstate batteries, 4 years old.

Motor starts fine, spins fast. still.. kinds tough to spend another 200 on batteries dang it.
But with a trip planned, better safe than sorry?
anyone seen this charging behavior ? I have to admit I kinda know its not right.

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#12729789 - 04/25/18 05:47 AM Re: bad gut feeliing about my boat batteries... [Re: timbertoes]
dimitri Offline
Extreme Angler

Registered: 08/12/09
Posts: 2222
Loc: Arlington TX
try topping them off with a standard charger, then let them sit overnight , then hook the onboard charger to them and see if anything changes. i would also top off the water in them after using the standard charger.

btw i’m no expert on batteries but in 9 years of boat ownership i have had pretty good LUCK with batteries. now catching fish is another story......

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#12729816 - 04/25/18 06:44 AM Re: bad gut feeliing about my boat batteries... [Re: timbertoes]
CADD Offline
Outdoorsman

Registered: 08/02/03
Posts: 230
Loc: Spring Branch, TX USA
I wouldn't expect them to be good, about 3 to 4 year's is it for an average batter and letting them sit is hard on them.

My thoughts are buy fresh batteries at the store, by as ”cheap" as you can and replace often... 3 to 4 year's
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2015 Diablo Amigo (Sand Fleck)


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#12729817 - 04/25/18 06:45 AM Re: bad gut feeliing about my boat batteries... [Re: timbertoes]
Bob Landry Online   content
Extreme Angler

Registered: 08/10/11
Posts: 2804
Loc: Austin, Tx
Go to Harbor Freight and pick up a resistive load tester for around $12. Charge your batteries for 24 hours, let rest for 24 hours, then load test. If the needle doesn't stay in the green, you have a bad battery, probably a weak cell drawing down the others.
You can do better than Interstate batteries.
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2015 Seaark 1872 MV CC Etec-90
Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
2018 Robalo R180 CC, Yamaha 115

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#12731431 - 04/26/18 06:46 AM Re: bad gut feeliing about my boat batteries... [Re: timbertoes]
Hog Jaw Offline
Extreme Angler

Registered: 06/09/08
Posts: 2584
Loc: The Great State of Texas
New Battery time

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#12731820 - 04/26/18 10:10 AM Re: bad gut feeliing about my boat batteries... [Re: timbertoes]
ssmith Offline
TFF Team Angler

Registered: 11/22/07
Posts: 3372
Loc: scotland tx
there is a reason most marine batteries have a 1 yr warranty

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#12732660 - 04/26/18 09:08 PM Re: bad gut feeliing about my boat batteries... [Re: timbertoes]
smooth move Offline
Extreme Angler

Registered: 10/14/12
Posts: 1308
Loc: bayou vista,tx
how's the water level in the batteries? dry cell will make the battery not charge.
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#12733792 - 04/27/18 05:50 PM Re: bad gut feeliing about my boat batteries... [Re: Hog Jaw]
Bandit 200 XP Online   content
TFF Celebrity

Registered: 03/03/11
Posts: 5575
Loc: Ray Roberts
Originally Posted By: Hog Jaw
New Battery time

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#12734360 - 04/28/18 10:19 AM Re: bad gut feeliing about my boat batteries... [Re: timbertoes]
texcajun Offline
TFF Team Angler

Registered: 01/31/03
Posts: 3706
Loc: The Woodlands Texas
For what it's worth, I manage to get pretty good use out of my batteries after following advice I got here on TFF years ago.

Like most of you I have an on-board charger, but rather than plugging it straight into a wall outlet, I have it plugged into a garden timer that only comes on for 1.5 hours each day. I was eating through batteries pretty quickly even when they were connected to a nice Dual Pro charger that supposedly dropped the charge to nil when the batteries were topped off. I got 6 years out of my last set of Interstate greenies using the 1.5 hour a day charge cycle time.
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2002 Scandy White, 2002 Yamaha 90
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#12736582 - 04/30/18 11:17 AM Re: bad gut feeliing about my boat batteries... [Re: timbertoes]
timbertoes Offline
Extreme Angler

Registered: 08/07/09
Posts: 1625
Loc: Van Alstyne
thanks for replies!
Battery's held up fine thus weekend... but I am pretty sure carbs are needed some love.. would bog and quit trying to hit 2500-3K rpm.
Changed fuel line, its fresh gas, but I suppose there is too much internal build up of gunk.
I have zero boat fixing money too, lol.


Edited by timbertoes (04/30/18 11:18 AM)

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#12744143 - 05/05/18 07:24 AM Re: bad gut feeliing about my boat batteries... [Re: timbertoes]
dimitri Offline
Extreme Angler

Registered: 08/12/09
Posts: 2222
Loc: Arlington TX
get a small gas can and dump a can of seafoam in a gallon of gas and hook the fuel line directly to the can. run on muffs. could possibly help and won’t hurt any worse than it is.

fyi: add oil to gas too if you premix

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#12744216 - 05/05/18 09:15 AM Re: bad gut feeliing about my boat batteries... [Re: timbertoes]
Trebor Neil Offline
TFF Guru

Registered: 08/08/02
Posts: 14242
Loc: Fruitvale, Texas
SEA FOAM!!!

STABIL!!!


Edited by Trebor Neil (05/05/18 09:16 AM)
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oofta!

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