1. Attachments are working again! Check out this thread for more details and to report any other bugs.

How to monitor the original hybrid battery before it dies?

Discussion in 'Gen 2 Prius Main Forum' started by gracezw, Jul 22, 2019.

  1. gracezw

    gracezw New Member

    Joined:
    Jul 21, 2019
    14
    7
    0
    Location:
    San Jose, CA
    Vehicle:
    2008 Prius
    Model:
    Two
    My 2008 Prius currently has less than 70, 000 miles. How do I know that time when the original hybrid battery begins to fail? What can I do regularly to try to squeeze more life and time out of the big battery?


    I called my local Toyota dealer, and they said it would cost me $4K and up to have a new big battery replaced. Before that, I could pay them $210 for a diagnosis. I need to call them again next week to ask about the warranty.



    I watched this following good video that recommended priuschat.com. and that is why I am here now.


    Signs that your Prius Hybrid Battery is going bad - Updated list




    If anyone can point me to any previous threads or discussions, or offer new insights, I would be very grateful!


    Grace

     
    WilDavis likes this.
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,166
    50,060
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    welcome!

    your 10 year warranty is up, but you can find much better pricing on a new battery.

    the best thing you can do for your existing battery is buy a prolong charger.

    this will balance the pack and extend its life.

    its a good idea to do it now, and not wait for symptoms

    you can monitor the cell voltages with tech stream (best) or some after market products like torque, dr prius and hybrid assistant
     
    WilDavis and Mendel Leisk like this.
  3. fotomoto

    fotomoto Senior Member

    Joined:
    Apr 22, 2009
    5,608
    3,788
    0
    Location:
    So. Texas
    Vehicle:
    Other Hybrid
    Good news, bad news.

    First the bad, batteries don't like to sit unused and you're averaging less than 7k miles/yr. Also, short drives are hard on the battery as the car relies more on the EV side while the gas engine (ICE) is warming up.

    The good: you live in a near perfect climate as 60-80f temps are ideal for battery health/longevity.

    My 06 has less miles than yours but it has lived its whole life in a hot climate with mainly very short drives by its first owner=early battery failure. I replaced mine two years ago with a new Toyota battery. I suggest you look into "grid charging" and see if that's right for you.
     
    WilDavis likes this.
  4. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
    56,693
    39,238
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    I'd second dr Prius, just trying it, only done the static check so far. App is free and you need a Bluetooth dongle. I got the Carissa; they're about $15.
     
    Skibob, WilDavis and fotomoto like this.
  5. Prii_socal

    Prii_socal New Member

    Joined:
    Jul 19, 2019
    12
    2
    0
    Location:
    los angeles
    Vehicle:
    2008 Prius
    Model:
    Three
    my 08 is 170k and still on original battery......
     
    bisco likes this.
  6. gracezw

    gracezw New Member

    Joined:
    Jul 21, 2019
    14
    7
    0
    Location:
    San Jose, CA
    Vehicle:
    2008 Prius
    Model:
    Two
    Thank you, Bisco!

    Where do I buy a prolong charger? How do I use it?

    How do I get hold of “tech stream”?

     
    bisco likes this.
  7. gracezw

    gracezw New Member

    Joined:
    Jul 21, 2019
    14
    7
    0
    Location:
    San Jose, CA
    Vehicle:
    2008 Prius
    Model:
    Two
    That is good for you!

     
  8. gracezw

    gracezw New Member

    Joined:
    Jul 21, 2019
    14
    7
    0
    Location:
    San Jose, CA
    Vehicle:
    2008 Prius
    Model:
    Two
    Mendel, thank you for this too!

     
    Mendel Leisk likes this.
  9. gracezw

    gracezw New Member

    Joined:
    Jul 21, 2019
    14
    7
    0
    Location:
    San Jose, CA
    Vehicle:
    2008 Prius
    Model:
    Two
    Foto, thank you! That is good to know. How do I look into "grid charging"?

     
  10. fotomoto

    fotomoto Senior Member

    Joined:
    Apr 22, 2009
    5,608
    3,788
    0
    Location:
    So. Texas
    Vehicle:
    Other Hybrid
    Just use the search box at the top of the page and enter "prolong" (that's the name of one popular charger) and/or "grid charging" as the search terms. You'll get plenty of reading material.
     
  11. Skibob

    Skibob Senior Member

    Joined:
    Sep 14, 2018
    2,912
    1,497
    0
    Location:
    Northern California
    Vehicle:
    2006 Prius
    Model:
    N/A
    The price to both replace your traction battery and do a diagnosis both seem rather high. If you do need to ever have this done you should call some dealers in the valley. Bet you can reduce those prices quite a bit.
     
  12. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,166
    50,060
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    'hybrid automotive.com' @jeff652 is the owner, and a member here.

    tech stream is available on amazon. it requires a compatible laptop. you can find much advice here from owners/users by searching.
    the phone apps like do prius are simpler, but not quite as useful.
     
  13. gracezw

    gracezw New Member

    Joined:
    Jul 21, 2019
    14
    7
    0
    Location:
    San Jose, CA
    Vehicle:
    2008 Prius
    Model:
    Two
    Skibob, thank you! It is good to know that you live in the valley too! I did get a quote from a place called "Prius Hybrid Battery of San Jose," it is $1700 for me with three year warranty or 36K miles. It certain looks good. I have never used them before, and am not sure how much trust to place on them. Any hidden cost or any unexpected hassle or something like that. Any suggestions?

     
  14. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,166
    50,060
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    never use rebuilt batteries. that's what everyone sells except toyota, and a few shops that carry new batteries, which you would be able to confirm.

    be very careful about this, tire are a ton of hybrid battery scams
     
    donbright likes this.
  15. gracezw

    gracezw New Member

    Joined:
    Jul 21, 2019
    14
    7
    0
    Location:
    San Jose, CA
    Vehicle:
    2008 Prius
    Model:
    Two
    Bisco, thank you for your opinion! That may explain why the non-toyota place offers a much cheaper price.

     
    bisco likes this.
  16. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,166
    50,060
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    it is. but if there are any places around you that install new toyota batteries, they can sometimes be as low as $2,200. installed.
    also, we have a member here who sells new non toyota batteries for $1,600. if you can find someone to put it in. it isn't a difficult job.
    they have only been available for awhile, but have undergone extensive testing, and so far so good.

    'newpriusbatteries.com'
     
  17. Skibob

    Skibob Senior Member

    Joined:
    Sep 14, 2018
    2,912
    1,497
    0
    Location:
    Northern California
    Vehicle:
    2006 Prius
    Model:
    N/A
    1700 seems a little low. The internet dealer price for a new battery is around 1700 itself. You could ask them how much labor they would charge for a battery swap with a factory new unit. If they can do that. There are parts that are used from the old battery, they might not want to try it.
     
  18. gracezw

    gracezw New Member

    Joined:
    Jul 21, 2019
    14
    7
    0
    Location:
    San Jose, CA
    Vehicle:
    2008 Prius
    Model:
    Two
    Bisco, how much time and energy is required for me to find out which shops carry new batteries?

     
  19. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,166
    50,060
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    probably a lot. find all the shops you can that work on hybrids, then call them to see if they put in new toyota oem batteries.
    we have a few members here who do it, but not in your neck of the woods, that i can recall.

    and call as many dealers as you are willing to drive to. they are price competitive, it is not fixed by toyota.
     
  20. Skibob

    Skibob Senior Member

    Joined:
    Sep 14, 2018
    2,912
    1,497
    0
    Location:
    Northern California
    Vehicle:
    2006 Prius
    Model:
    N/A
    Except Hawaii. One group owns all the dealers there and price fixes. ;)
     
    SFO and bisco like this.