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  1. #1
    Super Member Gary Fowler's Avatar
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    Jun 2008
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    7,912
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    Bismarck Arkansas
    Tractor
    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Optima battery gone bad overnight

    My kubota 900 RTV came with an Optima battery and it was working fine then overnight it went dead. It wont take a charge at all. I had it checked and it has 13 volts but only 30 amps output. The voltage it high enough that it shuts off the charging immediately. I replaced the Optima battery with a comparable sized NAPA 85 month battery for a little over $100 vs nearly $200 for a new Optima. The Optima was about 4 1/2 years old which is about the life span of a regularly maintained regular battery so I couldnt see paying double price for a battery that is not going to last more than a plain lead/acid battery.
    This one was cranking over great and went dead parked in my garage overnight. Anyone else have instant failure on Optima batteries.
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  2. #2
    Veteran Member Markcuda's Avatar
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    Jan 2011
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    1,211
    Location
    Clinton, Illinois
    Tractor
    2014 John Deere X534

    Default Re: Optima battery gone bad overnight

    And to think, I was considering a Optima battery
    Hours=(20.2)-2014 X534,bought May 29th,2 spinner knobs,brush guard,convert-a-ball front and rear,mulch kit,Gator blades,J/D 10P cart,4 suitcase weights,Brinly 24x36 poly lawn roller.Markcuda.com
    "if you like your healthcare,you can keep it"
    "if you like your doctor,you can keep them"

  3. #3
    Gold Member
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    Mar 2010
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    379
    Location
    Canada
    Tractor
    RTV1100 2009

    Default Re: Optima battery gone bad overnight

    Gary I don't know if this is your situation or not but here goes.

    I had a gel battery, not Optima, go bad after leaving the key on over night. Put 2 am charger on it because it was a motorcycle battery and no go. Tossed it and replaced it with the same. No problems since.

    But, a month later I learned something. You are supposed to zap these batteries when they go dead like that with a 10 am charger and often times they will recover.

    Worth a try.

    Might have saved me over $100 bucks.

  4. #4
    Platinum Member
    Join Date
    May 2009
    Posts
    717
    Location
    Maine
    Tractor
    International 2544 / Gator 825i

    Default Re: Optima battery gone bad overnight

    I run AGM batteries in my bass boat and they do like the higher amp chargers....I use a 15 amp Dual Pro onboard charger on mine and it works great.

  5. #5
    Veteran Member TOMMYHPX4X4's Avatar
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    May 2005
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    1,956
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    schriever, louisiana terrebonne parrish
    Tractor
    gator hpx 4x4

    Default Re: Optima battery gone bad overnight

    well for almost 5 years of service it would be about time for a battery to crap out.
    This ignore feature is great it's like raid is on pest one click and the pest is gone

  6. #6
    Super Member Gary Fowler's Avatar
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    Jun 2008
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    7,912
    Location
    Bismarck Arkansas
    Tractor
    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: Optima battery gone bad overnight

    Every battery failure I have ever had, they start getting weak first and eventually go flat. This thing must have had a catastropic failure internally or something as it went instantly. I didnt mention that when I tried to crank it, it started to turn over for just a fraction of a second then went out to where it would just turn on the instrument panel lights. I suppose for folks running ATV and motorcycles on demolition courses or similar extra rough terrain, the $200 price tag for one of these would be worth it as that seems to be where they are recommended, however for my service which is mostly on flat level ground, I couldnt see the benefit of one especially if it wont outlast a conventional battery.
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  7. #7
    Platinum Member
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    Apr 2011
    Posts
    804
    Tractor
    New Holland Boomer 50

    Default Re: Optima battery gone bad overnight

    Sounds like it lost a cell inside.

    I chose a couple yellow top Optimas for my truck. They're the deep discharge type. I figured I could run them down without hurting them that way.

    xtn

  8. #8
    Elite Member Skyco's Avatar
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    Jul 2007
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    2,718
    Location
    SC/NC

    Default Re: Optima battery gone bad overnight

    I've never been an Optima fan but some love them.
    IMO they are too much money unless you need the ability to run them on their side or upside down.
    They've lasted the same or less in my use as a regular battery, and of course cost double.

    re: the VRLA* type mc batteries, I'm struggling with one now, bought in feb this year and dead/bad already. Fortunately it has a lifetime warranty

    What I read is the VRLA (*sort of a gel battery, but not really) need a higher voltage charge than many chargers can generate to revive them. This does not necessarly mean higher amps will do it, the battery is only going to accept what it can, you can't force more amps in without raising voltage. As much as 20 v is recommended for a "dead" VRLA battery...only do that with it disconnected fo course lest you might blow vehicle electronis.

    Here is an excellent resource about batteries, geared toward MC batteries but the principles are the same..
    http://http://www.yuasabatteries.com...anual_2009.pdf

  9. #9
    Super Member crazyal's Avatar
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    Dec 2003
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    5,930
    Location
    Northern Vermont

    Default Re: Optima battery gone bad overnight

    I think the big selling point is that they can take higher shocks than a standard battery.
    Kubota L4240,Case 580K backhoe, Case 450 Dozer

  10. #10
    Elite Member rekees4300's Avatar
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    Feb 2010
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    3,194
    Location
    Indiana
    Tractor
    JD 4300, JD X500

    Default Re: Optima battery gone bad overnight

    "Anyone else have instant failure on Optima batteries."

    My truck needed a new battery so have been doing research re Optimas. There are many reviews in many internet forums that are negative. One consistent complaint is that they will not hold a charge very long in an inactive vehicle. My truck sometimes sits 2-3 weeks between starts. Today I went to Advance Auto Parts (an authorized Optima dealer) to see what they had to say. First thing I noticed was that there wasn't a single one displayed in their battery rack or anywhere else in the store. I told the salesman I wanted a new battery without mentioning any brands. He displayed a list of batteries available in inventory that were compatible with my truck. Interesting that Optimas were on the inventory list but none displayed for sale. Also interesting that as the salesman displayed the list he quickly skipped over the Optimas and said "those are expensive junk"! Needless to say, I did not purchase an Optima!

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