2005 Prius Hybrid Battery Problem & Slow Acceleration

Discussion in 'Gen 2 Prius Technical Discussion' started by richard203, Jan 23, 2019.

  1. richard203

    richard203 Member

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    hi so I test drove a 05 prius with a hybrid battery problem and when I test driving it I try to floor the car to hear any abnormal sound and the car don't go it just go 10-15MPH. I cleared the hybrid light before I test drive the car. when I drive on a steep hill the gas pedal is on the floor and it just going 5MPH. Do the hybrid battery affect this? forgot to say the 12v battery is dead too from sitting too long
     
  2. SFO

    SFO Senior Member

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    Yes it will.

    What were the codes thrown before you cleared everything?
     
  3. bisco

    bisco cookie crumbler

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    welcome!
    do not buy this car
     
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  4. Skibob

    Skibob Senior Member

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    Why not? He already knows the car has problems.
     
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  5. SFO

    SFO Senior Member

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    Am curious were/how this vehicle was found, as I haven't seen an affordable gen2 with a bad battery locally :coffee:
     
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  6. Skibob

    Skibob Senior Member

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    I would guess not Craigslist, cheap Prius there go in a New York Minute.
    Junkyard in Roseville had one that had a bad traction battery on Craigslist for 1000. They got calls from 3 states away in the first half hour
     
  7. SFO

    SFO Senior Member

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    Post fire(s), the local gen2 market moved up a notch. Also interesting as the gen3 market is still settling down.

    Guessing people without a home have to live somewhere at the end of the day, or the gig economy is still chasing cupcakes o_O
     
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  8. richard203

    richard203 Member

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    forgot whats the hybrid code i'll let you know the code tomorrow when I put in a new 12v battery since I tested the 12v battery today and its dead and have to replace it. the car is my coworker he got a few car and say he doesn't have time to fix it. so he selling it for 1k to me and told me the car got a hybrid battery problem.
     
  9. bisco

    bisco cookie crumbler

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    okay, good luck!
     
  10. Skibob

    Skibob Senior Member

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    Yes best of luck. I will say you will get the best support of any car site I have ever seen here.
     
  11. richard203

    richard203 Member

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    Here’s the data list of the hybrid battery voltage when the car is running. The code is P0A80.
     

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  12. SFO

    SFO Senior Member

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    Only the one DTC code (P0A80) was recorded?
     
  13. 2k1Toaster

    2k1Toaster Brand New Prius Batteries

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    Looks like block 12 is the culprit. You planning to keep the car for a while? If so, new battery is the only way to go. If you just need the car for a couple months then whack-a-mole may work for you.
     
  14. richard203

    richard203 Member

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    is the 16.9v on all other battery seems ok? I see that people get 17v on them. when I put in the new 12v battery theres no hybrid warning light, that's the only code it pop up when I plug in the techstream. when I test drive it more it fully charge fast then went down to 1 bar very quickly. It seems weird that if 1 battery pack fail the battery bar drop that quick?
     
  15. bisco

    bisco cookie crumbler

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    classic bad battery sign, actually. keep in mind, the dash indicator is not a measure of voltage
     
  16. dolj

    dolj Senior Member

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    It actually only takes one cell (of the 6 in each module) to bring the battery down. Each module has to behave in the same manner as all its buddies, otherwise mayhem ensues.
     
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  17. richard203

    richard203 Member

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    alright but do the hybrid battery voltage looks right? they are 16.9v. I thought a good battery suppose to be 17v+
     
  18. 2k1Toaster

    2k1Toaster Brand New Prius Batteries

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    A single static reading of the battery (any battery, anywhere) can't be used to validate the health of the battery unless it's way outside the usable ranges.
     
  19. richard203

    richard203 Member

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    alright i'll let u guys know next week. my friend say it aint worth it since you have to fix the rear bumper because owner got hit from the rear. when changing out the 12v battery I saw puddle of water in the spare tire area and the 12v battery area. last things is I heard some wind noise coming from the front of the passenger side when going 70mph. last thing is the trunk strut is making a loud noise. My friend say after fixing all those stuff plus new hybrid battery or just replacing the cells will cost you the same amount as buying a craigslist car so its not a big discount like the seller say. my friend say if he can sell it for $500 then its worth it but for 1k with all those problem its not worth it. what do you guys think?
     
    #19 richard203, Jan 25, 2019
    Last edited: Jan 26, 2019
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