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

Replaced with cylindrical cells: 68.8MPG

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by DirkAshburn, Apr 30, 2023.

  1. DirkAshburn

    DirkAshburn Member

    Joined:
    Apr 6, 2020
    79
    26
    1
    Location:
    Virginia
    Vehicle:
    2011 Prius
    Model:
    Four
    There is a YouTube creator, ChrisFix, that works on a variety of things on cars. Basically, he tries to make things simple for repairs and such. He bought a used 3rd gen with a dead battery. How he got it for so cheap and with the car looking so pristine I have doubts - but regardless it's a great video and the most in-depth I've seen yet.

    At the end he takes a 21 mile trip and returns over 65MPG with very conservative driving. I've been sold on those new cylindrical cells for awhile now hearing about others that have installed them. I have a 2011 that's about due for the new battery. Anyway, check out the video.

     
  2. alftoy

    alftoy Senior Member

    Joined:
    Mar 16, 2009
    1,132
    513
    0
    Location:
    Saskatchewan, Canada
    Vehicle:
    2008 Prius
    Model:
    Base
  3. DirkAshburn

    DirkAshburn Member

    Joined:
    Apr 6, 2020
    79
    26
    1
    Location:
    Virginia
    Vehicle:
    2011 Prius
    Model:
    Four
    I looked into those a lot - they aren't for me. Nice project though.
     
  4. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
    56,666
    39,220
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Very thorough step-by-step.
     
  5. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    6,173
    4,077
    1
    Location:
    Wilkes Land
    Vehicle:
    2012 Prius
    Model:
    Four
    If only the head gasket last at least half the life of the replaced battery, then it’ll be financially worth the replacement swap.
     
  6. AzusaPrius

    AzusaPrius Senior Member

    Joined:
    May 27, 2020
    2,069
    868
    0
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    IV
    I second the Lithium battery by Dr. Prius.

    There is no better battery replacement.

    Check out my profile for the Lithium link.

    I have the v2 Lithium upgrade now.
     
  7. Priipriii

    Priipriii Member

    Joined:
    Aug 14, 2022
    221
    61
    0
    Location:
    USA
    Vehicle:
    2013 Prius
    Model:
    N/A
    What are the cylinders made of? Nimh? If so how would that make any difference?

    Unless they are capable of accepting more amps when charging but thats all regulated by your HV controller, so unless you changed that too, those mpg werent long enough to get proper results.
     
    Paladain55 likes this.
  8. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    6,173
    4,077
    1
    Location:
    Wilkes Land
    Vehicle:
    2012 Prius
    Model:
    Four
    This battery yielded about 10 more mpgs than project lithium reported average users results!!! Let me get a referral code for us in here!
     
  9. AzusaPrius

    AzusaPrius Senior Member

    Joined:
    May 27, 2020
    2,069
    868
    0
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    IV
    Wow 10 more mpgs than the Lithium??

    So it gives 20 mpgs more than OEM??

    Because the Lithium pack has been giving 10+ mpgs more than OEM since it came out.
     
  10. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    6,173
    4,077
    1
    Location:
    Wilkes Land
    Vehicle:
    2012 Prius
    Model:
    Four
    This battery puts out 10 more mpgs than lithium project, you just stated it yourself above. Checkmate!!!
     
    Paladain55 likes this.
  11. AzusaPrius

    AzusaPrius Senior Member

    Joined:
    May 27, 2020
    2,069
    868
    0
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    IV
    No grit, I did not state that, notice the question marks please.

    But...if there has been years of R&D and plenty of tester and customers for that HV battery then Im sure they would chime in and show and tell us all about those extra 20 mpgs they are getting with that pack.

    You will however find plenty of users of the Lithium pack saying they are getting those extra 10 mpgs with theirs.

    Do you play chess?
     
    Mendel Leisk likes this.
  12. rjparker

    rjparker Tu Humilde Sirviente

    Joined:
    Jun 6, 2008
    8,487
    5,054
    7
    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    Odds are the cells were overcharged from the factory. Any decent battery can get 65mpg for short distances on level ground or better yet with a downslope. Those cells will give almost identical results as a new Toyota battery.

    Of course he said he planned to flip it for a two or three grand profit. He has another recent video on flipping as well.

    Most likely he was sponsored by the vendor. The kit price is a little high.
     
  13. DirkAshburn

    DirkAshburn Member

    Joined:
    Apr 6, 2020
    79
    26
    1
    Location:
    Virginia
    Vehicle:
    2011 Prius
    Model:
    Four
    After he installed the battery he did a test before putting the rest of the car back together, the battery was at about 25% charge. He did say he used every trick to get that 68mpg, and that a normal expectation will be 40-50 which is in line with what others are getting. Also yes, he mentioned in the beginning he was sponsored by the vendor. And yeah, that place is a little on the expensive side.
     
  14. Priipriii

    Priipriii Member

    Joined:
    Aug 14, 2022
    221
    61
    0
    Location:
    USA
    Vehicle:
    2013 Prius
    Model:
    N/A
    Sounds about right. The only real way to increase mpg is to alter the engine or electric motor, which Toyota has been doing for the newer models of hybrids. A lot of testing and improvements to the design gets made to squeeze like 10% efficiency.
     
  15. Eddie25

    Eddie25 Active Member

    Joined:
    Dec 31, 2018
    434
    174
    0
    Location:
    IL
    Vehicle:
    2011 Prius
    Model:
    III
    It depends. I think if you increase the battery capacity and spend a lot of time driving with the ICE off then that's the theory behind getting more MPG. On the highway it's not going to make much difference.

    21 miles is a stupidly low amount of data and I feel like that's just about the max MPG I could get going over 20 miles if I could map my own route at the right time of day, which is what I'd be doing for a sponsor.

    How are the cylindrical cells doing anyways? Are there long term users on here at this point?
     
  16. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
    56,666
    39,220
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    It'd be interesting to see how it fares, say a year from now, if he hangs onto it for a while. Maybe he'll do a follow-up video.
     
  17. rjparker

    rjparker Tu Humilde Sirviente

    Joined:
    Jun 6, 2008
    8,487
    5,054
    7
    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    Stats can be deceiving. Today after a fill on a 283,000 mile v, Toyota cells and excessive oil consumption. I had to wait for an uphill to get it off 99.9 mpg.

    IMG_1991.jpeg
     
  18. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    6,173
    4,077
    1
    Location:
    Wilkes Land
    Vehicle:
    2012 Prius
    Model:
    Four
    A gen 3 dashboard mod?
     
  19. rjparker

    rjparker Tu Humilde Sirviente

    Joined:
    Jun 6, 2008
    8,487
    5,054
    7
    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    Not sure about your question. The v wagon has a different dashboard but the above avg mpg was created by resetting Trip A averages to zero after a fill up. Then picking an easy route. Just like Chrisfix in his video.
     
  20. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    6,173
    4,077
    1
    Location:
    Wilkes Land
    Vehicle:
    2012 Prius
    Model:
    Four
    Great excellent apple oranges comparison extra curricular reading.