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  1. #1
    Gold Member
    Join Date
    Jan 2006
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    354
    Location
    NORTHWEST MICHIGAN
    Tractor
    KUBOTA L175

    Default battery charger on timer?

    If I hook a battery charger up to my tractor, and put a timer on the AC side of the charger, will the battery discharge back thru the charger when it is off? I want to be able to charge the battery for an hour or two before I start blowing snow, but the tractor is in the barn, away from the house and I'm lazy, OK!

  2. #2
    Elite Member RalphVa's Avatar
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    Dec 2003
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    3,806
    Location
    Charlottesville, VA, USA
    Tractor
    JD 1025, previously Gravely 5650 & JD 4010

    Default Re: battery charger on timer?

    The answer's "no".

    I took the battery out of my car for 6 months one time we went to Singapore. Connected it through 2 timers in series, so that it would only get charged for a couple of hours about once every 22 days or so. Went I returned, I took the battery up to the garage and put it in the car, glowed it, and it started immediately.

    I'm doing the same thing now with the backup battery to my generator.

    Ralph
    The natural gardener
    God's original intent

  3. #3
    Veteran Member Hooked_on_HP's Avatar
    Join Date
    Dec 2005
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    2,043
    Location
    Coal City IL
    Tractor
    Ford 1900 FWD Kubota F2100E

    Default Re: battery charger on timer?

    I you have a good charger you can leave it on and it will shut off when the battery is fully charged. The new microprocessor chargers are realy good at maintaining your battery. Unless you have somthing draining the battery, putting the charger on before you try to start it shouldn't make a difference. I wouldn't trust a timer with a cheap charger you might boil the battery dry.If your charger has any lights that come on when you hook it up it may drain the battery while it is off.

  4. #4
    Platinum Member GaryE's Avatar
    Join Date
    Jan 2005
    Posts
    723
    Location
    Winterport, Maine
    Tractor
    L3710 GST

    Default Re: battery charger on timer?

    With a good charger you do not need a timer.... But better yet, with a good battery you will not need to worry about the charger. Replace your battery every other year and you have to worry about it.




    Gary

  5. #5
    Elite Member thcri's Avatar
    Join Date
    Jan 2003
    Posts
    4,649
    Location
    Minnesota SE
    Tractor
    New Holland TC29D, 2001

    Default Re: battery charger on timer?

    I would go out and get one of them "Battery Tenders". They will allow a battery to drop down some and then charge it back up. Put on my boat every winter and it works great.

    As far as your question of leaving a battery charger on all the time, some of the old ones will drop your battery dead. I know, I had one and I learned the hard way. Instead of taking the cables off one time I went in the shed and just pulled the 120 volt cord out of the wall. Next day the battery was totally dead. The newer ones as others have said you don't have to worry.

    murph
    "This country was founded and built by people with great dreams and the courage to take great risks."

  6. #6
    Platinum Member
    Join Date
    May 2005
    Posts
    954
    Location
    Farwell, Michigan
    Tractor
    JD 2010

    Default Re: battery charger on timer?

    Quote Originally Posted by GaryE
    With a good charger you do not need a timer.... But better yet, with a good battery you will not need to worry about the charger. Replace your battery every other year and you have to worry about it.




    Gary
    Gary,
    My batteries last me between 5 to 7 years depending on the quality of battery that I purchase. I drive a 2000 Toyota Camry and the original battery is still going strong. My kubota riding lawn mower is around 4 years old and the battery is still going strong.
    David
    David B

  7. #7
    Elite Member
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    MrJimi's Avatar
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    Jan 2006
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    2,504
    Location
    NorthEast, Florida
    Tractor
    Case 1845 C Skid steer

    Default Re: battery charger on timer?

    We use the one and only true Batterytender.com - Home of All Your Charging Needs , I have 6 of these and they are great, the battery life is extended and is very easy to use and comes with a 10 year warrantee


    Jim
    Last edited by MrJimi; 12-05-2006 at 09:12 AM.
    Click here for my current weather

    Case 1845C with dirt bucket, forks, 3 point quick hitch on the front, 30'. boom, 6 & 1/2 foot disc harrow, 5 foot Howse RC, root and tree bucket and Grouser tracks and a Ford F-550 pick up,7.3 Turbo with Auto and a Crosley 25' X 8'.6" X 14 K D/O trailer.
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  8. #8
    Platinum Member GaryE's Avatar
    Join Date
    Jan 2005
    Posts
    723
    Location
    Winterport, Maine
    Tractor
    L3710 GST

    Default Re: battery charger on timer?

    Quote Originally Posted by Farwell
    Gary,
    My batteries last me between 5 to 7 years depending on the quality of battery that I purchase.......
    David,


    Every two years may be overkill for some, but if you start pushing a battery to 5 7 years you are more likely to have a problem. Considering my tractor can sit for a week or more in the winter before I need it. For me, changing the battery out every 2 years is cheap insurance. This way the battery is the last thing I have to worry about. And I don't have to worry about dealing with a battery charger!



    Gary

  9. #9
    Platinum Member
    Join Date
    Jan 2002
    Posts
    829
    Location
    Tidewater VA.
    Tractor
    Ford '92 2120

    Default Re: battery charger on timer?

    The absolute best device I have ever found for prolonging battery life is the Shumacher maintainer/charger. Mounts directy on to the tractor and plugs in like the block heater.
    My 2120 battery finally died after 12 years. I'm on the coast and we use alot of wet cell batteries in boats. A good diesel marine battery will run you about $225 and you need 3 or 4 of them. One to start each engine and a spare or house. I allways install a battery maintainer. I have several of these Shumachers for my land craft and they use to be about $20 at Wally World. You can connect the male end of a cig lighter plug to the maintainer and then just plug it in to the cig lighter socket on the tractor if you want it keep it portable.
    SE-1-12S - 1.5 amp Battery Charger
    Steve...

    "My biggest fear is that when I'm gone my wife will sell all my tractor gear for what I said I paid for it. "

  10. #10
    Epic Contributor Soundguy's Avatar
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    Mar 2002
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    48,054
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    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: battery charger on timer?

    Your charger had a defective or leaky rectifier in it.. perhaps an old selenium jonb.. or just a plain bad silicon diode..e tc.

    A plain jane transformer and bridge rectifier type charger, on a good working timer will not cause a problem.

    I don't like the new fangled microporcessor type chargers. They aren't as usefull when it comes to flat batteries, or ones with a slight reverse charge on them..

    Soundguy

    Quote Originally Posted by thcri
    I would go out and get one of them "Battery Tenders". They will allow a battery to drop down some and then charge it back up. Put on my boat every winter and it works great.

    As far as your question of leaving a battery charger on all the time, some of the old ones will drop your battery dead. I know, I had one and I learned the hard way. Instead of taking the cables off one time I went in the shed and just pulled the 120 volt cord out of the wall. Next day the battery was totally dead. The newer ones as others have said you don't have to worry.

    murph

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