1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Odyssey 25-PC1400 it as 10.0 volts, isn't taking a charge

Discussion in 'General Tundra Discussion' started by goffredo, Dec 1, 2019.

  1. Dec 1, 2019 at 5:53 PM
    #1
    goffredo

    goffredo [OP] Grease Nipple

    Joined:
    Feb 17, 2018
    Member:
    #12974
    Messages:
    146
    Gender:
    Male
    Lake Tahoe, California
    Vehicle:
    2018 Tundra Limited Double Cab Magnetic Gray
    I got dual Odyssey 25-PC1400s and the Genesis dual-bat kit. Installed it August 10 of this year, worked great.

    Temps have dropped into single digits the past week or so, winter came in like a lion in the Sierra!

    SO yesterday, I got the dreaded starter click-click-click at the gym, dead starter battery! I didn't even forget and leave an overhead light on or anything. I pushed the button on the Genesis that joins the two batteries together, and was able to start it. I drove it home and plugged it into my Genius charger.

    Now today, it won't start again (without joining the two batteries together) and the starter battery shows 10.0 volts! And it doesn't seem to be taking a charge from the Genesis now.

    I thought this was a pretty fancy-pants battery, and it worked fine for a little over 3 months, but now that it's cold outside, it won't hold a charge. That's pretty surprising!

    Note that the aux battery tests at 13.1 volts, and my truck shows a draw of 0.48 milliamps when everything is off, so there isn't a parasitic draw that might explain why the starter battery is dead.

    What a pisser!
     
  2. Dec 1, 2019 at 6:13 PM
    #2
    Stig

    Stig New Member

    Joined:
    May 29, 2016
    Member:
    #3475
    Messages:
    952
    Less than 4 months I'd guess warranty will take care of it. Dual battery setups are complicated. I prefer to keep it simple. Single big battery, 200 watts of solar I'd you camp or run a fridge and a good jump pack to get you home in emergencies.
     
    Zero One Actual likes this.
  3. Dec 1, 2019 at 6:25 PM
    #3
    14burrito

    14burrito IG @14burrito

    Joined:
    Dec 14, 2014
    Member:
    #798
    Messages:
    3,819
    Vehicle:
    2014 SR5 CM 4x4 5.7
    @ADSracingshocks - F 3 point ohh / R 2.5 - w/clickers @camburgracing - uniball UCA @rigidindustries - 40" amber/white split, Dually XL, D2 @coopertires - 35/12.5/17 STT MAXX @bayareametalfab - low pro bed rack @toyotausa - 17" rock warrior @sdhqoffroad - rock sliders, a-pillar @hondogarage / @apple / @gaiagps / @dualgps- navigation @wheelersoffroadinc - superbumps
    If you're only showing 10 V or the around it looks like your main battery dropped a cell
     
  4. Dec 6, 2019 at 11:02 PM
    #4
    goffredo

    goffredo [OP] Grease Nipple

    Joined:
    Feb 17, 2018
    Member:
    #12974
    Messages:
    146
    Gender:
    Male
    Lake Tahoe, California
    Vehicle:
    2018 Tundra Limited Double Cab Magnetic Gray
    The weird thing is, it shows 12.6 volts, but as soon as any load is put on it, it produces zero amps of output and then shows 9 or so volts. Something about a surface charge? I don't know battery stuff that well. Other than my battery is clearly fucked.

    I'm honestly not sure what happened. I thought these Odysseys were high quality batteries. I certainly wasn't rough on it, and it shit the bed on me after only 3 months in service. Well anyway I'm getting it replaced under warranty, but I'm kind of miffed that i have to pay for shipping, and god knows if I have to pay to 'recycle' the dead one at my local landfill.
     
  5. Dec 6, 2019 at 11:35 PM
    #5
    pickeledpigsfeet

    pickeledpigsfeet New Member

    Joined:
    Aug 10, 2018
    Member:
    #17999
    Messages:
    495
    Gender:
    Male
    Sierra Foothills, Ca
    Vehicle:
    2019 Tundra/14 FJ/ 90 SASed xcab
    Kings & Icons
    I have owned 3 odysseys and they all failed within a few years even with chargers that put out the proper 14.7 they need to charge. Google “odyssey recondition” and you can find a procedure to try and keep your new one from dying so quickly. Its a process of slowly drawing the battery down to 10v and then pumping 40a into it.

    Edit here is the pdf, some forums go into detail about the process, so its worth googling and doing some research.

    https://www.odysseybattery.com/documents/ODYSSEY_Battery_Reconditioning_Charge_Procedure.pdf
     
  6. Dec 7, 2019 at 12:50 AM
    #6
    goffredo

    goffredo [OP] Grease Nipple

    Joined:
    Feb 17, 2018
    Member:
    #12974
    Messages:
    146
    Gender:
    Male
    Lake Tahoe, California
    Vehicle:
    2018 Tundra Limited Double Cab Magnetic Gray
    Geez. Sounds like I'll definitely want to keep my receipts handy for the 2 odysseys I bought at Genesis Offroad's recommendation. Thanks for the help! I actually have a recommended charger for these batteries, but it's not 40 amps. Maybe if I started an automotive battery reconditioning service, I could see buying a 40 amp battery charger, but I think buying batteries that are less finicky when these two die past their warranty periods would be more financially prudent.
     
  7. Dec 7, 2019 at 8:21 AM
    #7
    pickeledpigsfeet

    pickeledpigsfeet New Member

    Joined:
    Aug 10, 2018
    Member:
    #17999
    Messages:
    495
    Gender:
    Male
    Sierra Foothills, Ca
    Vehicle:
    2019 Tundra/14 FJ/ 90 SASed xcab
    Kings & Icons
    I moved to a northstar(same specs) and so far it is more reliable. I have been able to just leave it and not do any special charge cycles and it passes the load test better than my odysseys did at the same point in their life. Reading the forums it seems that some odyssey models are great and some are blah.

    From my notes, I copied this from a sailing forum as they all use agm banks to run their systems and they dont want to be in the middle of the ocean with dead batteries.

    “Odysseys are simple.


    Bulk to 14.7v.

    Absorb at 14.7v for 8 hours or until amp flow drops below half an amp (whichever comes first).

    Float at 13.6v.

    EnerSys (Odyssey) is adamant that these batteries will not charge without applying a minimum of 6 amps, and at 14.5-14.8 volts.

    Just got this back from Enersys. For whoever else may be interested:


    Hello RH,


    Thank you for contacting EnerSys/ODYSSEY.


    The PC1500 series models are all the same basic battery with different terminal configurations and marketing labels. All ODYSSEY batteries are dual purpose for both cranking and deep cycling. The Marine 34M-PC1500ST is commonly used in automotive applications due to the top post dual terminal configuration for auxiliary loads.


    Understand that most alternators are not meant to be deep discharge recovery chargers so monitoring of the battery to determine if external charging is required or an upgraded higher amp alternator would be beneficial. The battery can take up to 300A and prefers a charging voltage of 14.4-14.8V. If the battery’s resting voltage 8-24 hours off charge, including alternator charging, is at least 12.84V then the system is charging the battery to a full state of charge based on your usage and the amount of driving you are doing. If not, the battery will fail prematurely due to consistent undercharging or being maintained in an undercharged condition. For vehicles that are not daily drivers, parasitic loads over time can became an issue as well.


    I hope this helps. Sincerely,


    Kathy Mitchell”
     
  8. Dec 7, 2019 at 9:08 AM
    #8
    Stig

    Stig New Member

    Joined:
    May 29, 2016
    Member:
    #3475
    Messages:
    952
    ^good points.

    Also the factory charging voltage from the alternator only reaches 14.5 volts or so. I don't remember the exact number but it is a few tenths too low for agm batteries. To get around that you can add a resistor to the fuse on the alternator circuit to boost it up .4 volts
     
  9. Dec 10, 2019 at 8:47 AM
    #9
    goffredo

    goffredo [OP] Grease Nipple

    Joined:
    Feb 17, 2018
    Member:
    #12974
    Messages:
    146
    Gender:
    Male
    Lake Tahoe, California
    Vehicle:
    2018 Tundra Limited Double Cab Magnetic Gray
    Great information! I've posted a followup thread here to try and get more tips for keeping the Odysseys in good shape.
     
  10. Dec 10, 2019 at 8:54 AM
    #10
    pickeledpigsfeet

    pickeledpigsfeet New Member

    Joined:
    Aug 10, 2018
    Member:
    #17999
    Messages:
    495
    Gender:
    Male
    Sierra Foothills, Ca
    Vehicle:
    2019 Tundra/14 FJ/ 90 SASed xcab
    Kings & Icons
    I responded to your new thread. Here is the link to what I use to get my alt on other toyota vehicles to charge agm batteries.

    https://www.hkbelect.com/
     
  11. Dec 10, 2019 at 9:32 AM
    #11
    pickeledpigsfeet

    pickeledpigsfeet New Member

    Joined:
    Aug 10, 2018
    Member:
    #17999
    Messages:
    495
    Gender:
    Male
    Sierra Foothills, Ca
    Vehicle:
    2019 Tundra/14 FJ/ 90 SASed xcab
    Kings & Icons
    And here is a good thread talking about those hkb fuses.
     

Products Discussed in

To Top