How to make battery last longest?

Discussion in 'Prime Care, Maintenance and Troubleshooting' started by idahohacker, Apr 4, 2019.

  1. Roy2001

    Roy2001 Active Member

    Joined:
    Apr 1, 2009
    369
    152
    0
    Location:
    Sacramento, CA
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Premium
    Did you mean to keep the car through 2035?:)
     
  2. vvillovv

    vvillovv Active Member

    Joined:
    Mar 19, 2013
    964
    355
    0
    Location:
    NY
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    Hybrid Assistant show
    84% Full
    13% at 0.0 miles EV
    It would be interesting to see just how far down SOC goes in HV mode.
    I'm not sure I want to even go there though.
     
  3. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    86,309
    38,216
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    why? toyota has 20+ years of hv mode experience
     
    vvillovv likes this.
  4. Skylis A

    Skylis A Senior Member

    Joined:
    May 20, 2013
    1,144
    856
    0
    Location:
    Maine
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Advanced
    Got mine down to 9% on a road test. After that, the computer system forces the engine on and starts recharging the battery.
     
    vvillovv likes this.
  5. schja01

    schja01 One of very few in Chicagoland

    Joined:
    Apr 22, 2005
    1,096
    748
    0
    Location:
    Chicagoland
    Vehicle:
    2018 Prius
    Model:
    Prime Advanced
    Mine did similar once but yesterday I got down to 0.7 mi or 2.5% and the ICE did not start. Not sure why it let me get so low this time and not before.
     
  6. a_gray_prius

    a_gray_prius Rare Non-Old-Blowhard Priuschat Member

    Joined:
    Jun 13, 2008
    2,927
    768
    0
    Location:
    IL
    Vehicle:
    2008 Prius
    Model:
    N/A
    If you want to keep the car for 35 years, the battery is only a small part of the concerns you should have. The rubber seals and hoses in the engine will start to degrade after 8-10 years. After 20, you'll probably have to pull the engine out and replace many of them, and they may become hard to come by. Ask anyone who currently has a British classic like an MG or Austin-Healey (and most of them will have some aftermarket support). We have a car old enough to drink, and it's not easy getting some parts these days.
     
  7. schja01

    schja01 One of very few in Chicagoland

    Joined:
    Apr 22, 2005
    1,096
    748
    0
    Location:
    Chicagoland
    Vehicle:
    2018 Prius
    Model:
    Prime Advanced
    In 35 years with my driving/charging habits my engine will have less than 100 hours on it so I wonder if your concerns are really valid? Of course in my case in 35 years I’ll be long gone. :(
     
  8. a_gray_prius

    a_gray_prius Rare Non-Old-Blowhard Priuschat Member

    Joined:
    Jun 13, 2008
    2,927
    768
    0
    Location:
    IL
    Vehicle:
    2008 Prius
    Model:
    N/A
    Just thermocycling from the changing of the seasons and being parked in the sun is sufficient. That's one of the reasons so many people store collector cars in climate controlled storage.
     
  9. schja01

    schja01 One of very few in Chicagoland

    Joined:
    Apr 22, 2005
    1,096
    748
    0
    Location:
    Chicagoland
    Vehicle:
    2018 Prius
    Model:
    Prime Advanced
    Yea. My climate controlled garage should do it.
     
  10. a_gray_prius

    a_gray_prius Rare Non-Old-Blowhard Priuschat Member

    Joined:
    Jun 13, 2008
    2,927
    768
    0
    Location:
    IL
    Vehicle:
    2008 Prius
    Model:
    N/A
    Yeah but you're also in Chicagoland and the salt, potholes, and uninsured drivers will eat your car alive well before the seals are a concern.
     
  11. jb in NE

    jb in NE Senior Member

    Joined:
    Apr 13, 2018
    2,235
    1,569
    0
    Location:
    Nebraska
    Vehicle:
    2018 Prius Prime
    Model:
    Prime Premium
    These are for the 12V battery. Limiting sort rides ensures the battery gets re-charged after starting the car (not applicable to a Pirme), etc.
     
  12. vvillovv

    vvillovv Active Member

    Joined:
    Mar 19, 2013
    964
    355
    0
    Location:
    NY
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    Thanks for the data. I still don't want to do drain the pack down that far, but it's good to know where the limit is.
    I remember in the 14 PIP when it got down that far the Battery Charge graphic color changed to purple.
     
  13. idahohacker

    idahohacker Junior Member

    Joined:
    Mar 29, 2019
    41
    12
    0
    Location:
    Bennington, Idaho
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    No I mean keeping the car until 2055
     
    bisco likes this.
  14. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    86,309
    38,216
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    go for it! (y)
     
Loading...