12 volt Battery Manufacture Date

Discussion in 'Gen 3 Prius Technical Discussion' started by Borninblue, Feb 25, 2019.

  1. Borninblue

    Borninblue Member

    Joined:
    Nov 25, 2018
    128
    95
    0
    Location:
    Cleveland, Ohio
    Vehicle:
    2010 Prius
    Model:
    Two
    From searching threads I thought the battery birth date was in MM/DD/YY. I looked at mine today, first number is 24? See attached.

    I bought the vehicle used few months ago, the owner said the battery had been replaced. If I am reading part of the battery right it, I believe it was made in 2011. So he failed to tell me he replaced it 8 years ago, silly me for not asking when or checking the date. Anyways I am probably due for one don’t you think?
     

    Attached Files:

  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    81,480
    35,201
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    looks like 12/24/11, can't be original?
     
    Borninblue likes this.
  3. Borninblue

    Borninblue Member

    Joined:
    Nov 25, 2018
    128
    95
    0
    Location:
    Cleveland, Ohio
    Vehicle:
    2010 Prius
    Model:
    Two
    Vehicle is a 2010, so I was assuming it couldn’t be original. I guess if it is a late model 2010 it could be.
     
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    81,480
    35,201
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    how long have you owned it? a lot of 10's sat on the lot, and had to have the 12v replaced prematurely
     
  5. Borninblue

    Borninblue Member

    Joined:
    Nov 25, 2018
    128
    95
    0
    Location:
    Cleveland, Ohio
    Vehicle:
    2010 Prius
    Model:
    Two
    About 3 months I have had her. I guess he outright lied to me, just not sure why he offered that information when I didn’t even ask about the 12v. I don’t have a digital meter, I’m thinking maybe I should just replace it.
     
    bisco likes this.
  6. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    81,480
    35,201
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i hope he didn't mean the hybrid battery
     
  7. MichaelKnight

    MichaelKnight Junior Member

    Joined:
    May 1, 2018
    39
    21
    0
    Location:
    Westcoast
    Vehicle:
    2005 Prius
    Model:
    N/A
    hope this helps...
    Although it looks like you figured it out already....
     

    Attached Files:

  8. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    81,480
    35,201
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    according to that, the year would be 1924 :cool:
     
    MichaelKnight likes this.
  9. Borninblue

    Borninblue Member

    Joined:
    Nov 25, 2018
    128
    95
    0
    Location:
    Cleveland, Ohio
    Vehicle:
    2010 Prius
    Model:
    Two
    No, I specifically remember him saying “ I never replaced the big battery.” I know that to be true since I actually got back there shortly after I bought it it to clean the fan. It was filthy by the way.
     
    bisco likes this.
  10. MichaelKnight

    MichaelKnight Junior Member

    Joined:
    May 1, 2018
    39
    21
    0
    Location:
    Westcoast
    Vehicle:
    2005 Prius
    Model:
    N/A
    Thats is why I should not post late lol....
     

    Attached Files:

    RMB, Robert Holt and bisco like this.
  11. Borninblue

    Borninblue Member

    Joined:
    Nov 25, 2018
    128
    95
    0
    Location:
    Cleveland, Ohio
    Vehicle:
    2010 Prius
    Model:
    Two
    Debating do I buy a load tester.....battery is already 7 years old whether it tests fine or not only matter of near future death no?
     
  12. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    81,480
    35,201
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    @Mendel Leisk is our load tester expert (y)

    mine is 7 years, but i'm waiting il it shows some signs of old age. i run a volt meter over it every now and again, just to see if it is dropping at all.
     
    Borninblue likes this.
  13. Borninblue

    Borninblue Member

    Joined:
    Nov 25, 2018
    128
    95
    0
    Location:
    Cleveland, Ohio
    Vehicle:
    2010 Prius
    Model:
    Two
    My mileage is lower than what most people have posted (taking into account winter drops). I have even babied the pedal, although I need a full EGR cleaning which I have on the list. I only have an analog meter so tough for me to test right this second.
     
  14. Mendel Leisk

    Mendel Leisk Obtuse Angler

    Joined:
    Oct 17, 2010
    34,584
    23,542
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    The need to load test will continue beyond your current problem. Also good to take along when buying batteries, though most retailers have pro versions, and should be willing to demonstrate with the battery you're buying.

    I got a Solar BA5 a few years ago, rudimentary but works as advertised, around $60 US I think? A smart charger is another nice piece of gear to have.
     
    RMB, bisco and Borninblue like this.
  15. Borninblue

    Borninblue Member

    Joined:
    Nov 25, 2018
    128
    95
    0
    Location:
    Cleveland, Ohio
    Vehicle:
    2010 Prius
    Model:
    Two

    I just ordered the Solar tester and I have one question. Can I leave the terminals hooked up to the car while I conduct the test or do I have to disconnect the terminal connections to the vehicle and have the battery isolated from the vehicle?
     
Loading...