taking care of deep cycle batteries
Cowboyhannah
Posted 6/10/2010 10:23 PM (#444931)
Subject: taking care of deep cycle batteries





Posts: 1451


Location: Kronenwetter, WI
I was poking around the web and came across this advice:

"Like a NiCad battery, a deep cycle marine battery must be "trained" in order to do its job at maximum efficiency levels. Let me give you the guaranteed recipe for disappointment. Take anew, fully charged battery and discharge it slightly. Then, put a light charge on it to top it off. Do that several times in a row and you now have a great big battery with nearly no usable power. The battery has been trained to have a shallow charge memory. Weird, but true. For best results a deep cycle 'battery should be worked hard, discharged heavily and then correctly recharged, fully."

So my practice of plugging in after every trip (24v TM system), even a short 3 hour outing is wrong? I should use the same charge on multiple shorter outings until I see the batteries are notably discharged?
TJ DeVoe
Posted 6/10/2010 11:25 PM (#444941 - in reply to #444931)
Subject: Re: taking care of deep cycle batteries




Posts: 2323


Location: Stevens Point, WI
Yep, that's correct. I gauge my charging on how I fish and the weather I see. If I'm fishing in winds 10-30mph or whatever for more than 8 hours, the charger goes on. Or, like today, fished for 4-6 hours total, but with almost no wind. I won't put the charger on.

I've been charging my batteries this way for years and have had very good success. I ran a 2001 Alumacraft till 2007, that boat saw one set a batteries and they were still going strong when I sold the boat.

My suggestion, get the biggest batteries you can, and you'll be good. Been running 31 Blue Top Optima's for about a year now and I'm extremely happy, longest run time I've ever seen with batteries!
Southshore
Posted 6/11/2010 5:33 AM (#444954 - in reply to #444941)
Subject: Re: taking care of deep cycle batteries




Posts: 218


That is the opposite of every article I have read in publications such as InFiherman, Bass Master, Bassin Times, Walleye Insider and Esox Angler. All recommend the immidiate recharge of a deep cycle battery. Most go on to recommend that a deep cycle battery not be drained down completely. This usually works for me.

Run time on any battery will be shorter if it has a heavier boat to pull.

ESOX Maniac
Posted 6/11/2010 6:13 AM (#444959 - in reply to #444954)
Subject: Re: taking care of deep cycle batteries





Posts: 2752


Location: Mauston, Wisconsin
Another urban legend. Southshore is right, they need to be recharged as soon as possible. Lead-acid batteries don't develop a memory!

TJ- Shallow discharges w/o recharge - it all depends on your definitions. But, you are affecting the battery life.

Have fun!
Al
jackson
Posted 6/11/2010 7:51 AM (#444969 - in reply to #444931)
Subject: Re: taking care of deep cycle batteries




Posts: 582


I agree. Charge them right away. I charge mine after every outing whether it be 2 hours or 8 hours. I always keep them full. I am going on year 4 with Walmart batteries that still work great. LAcid batteries do NOT form a memory and can be charged. With todays chargers, i think we are even safer than we were just 10 years ago.
Kuhly
Posted 6/11/2010 8:23 AM (#444978 - in reply to #444931)
Subject: Re: taking care of deep cycle batteries





Posts: 96


Location: Eau Claire
Just got rid of a 9 year old battery that I charged after every outing. It just started not holding a full charge this year after it was stored this winter uncharged.
Jerry M
Posted 6/11/2010 8:26 PM (#445109 - in reply to #444931)
Subject: RE: taking care of deep cycle batteries




Location: Little Arbor Vitae Lake, WI
I've been using the same battery for my trolling motor for 15 years. I charge it every time I go fishing, weather I used it two or twelve hours the previous outing.
FEVER
Posted 6/12/2010 12:35 PM (#445151 - in reply to #444931)
Subject: Re: taking care of deep cycle batteries





Posts: 253


Location: On the water
I also charge after every outing and have had long life with my batteries.
Slow Rollin
Posted 6/12/2010 12:41 PM (#445152 - in reply to #444931)
Subject: RE: taking care of deep cycle batteries




Posts: 619


charge after every outing
leech lake strain
Posted 6/15/2010 9:48 PM (#445776 - in reply to #444931)
Subject: Re: taking care of deep cycle batteries




Posts: 536


yah the lead acid batteries will not gain a memory, I believe it is the lithium type batteries that do this! best thing to do with acid batteries is to keep em up all the time, longer there up the longer they stay up!
Ifishskis
Posted 6/16/2010 8:21 AM (#445815 - in reply to #444931)
Subject: Re: taking care of deep cycle batteries





Posts: 395


Location: NW WI
Charge after every outing.
Kuhly
Posted 6/16/2010 10:41 AM (#445828 - in reply to #444931)
Subject: Re: taking care of deep cycle batteries





Posts: 96


Location: Eau Claire
Over charging a battery obviously has an effect on it's life. I just got an automatic charger and couldn't be happier. It's shuts off when the charge is full.
Simple fisherman
Posted 6/17/2010 7:14 PM (#446107 - in reply to #444931)
Subject: Re: taking care of deep cycle batteries




Posts: 69


Location: Pittsburgh
Good fishin everyone here are definitive answers with explanation http://www.vonwentzel.net/Battery/00.Glossary/index.html
Keepin it simple