Gen 3 Prius Shows 1 Bar Of Battery Charge

Discussion in 'Gen 3 Prius Technical Discussion' started by PriusMan2010, Jun 20, 2026 at 3:48 AM.

  1. PriusMan2010

    PriusMan2010 New Member

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    Hello guys, sometimes my prius battery indicator will go down to 1 bar. Ive looked online, and the lowest Ive ever seen it online is 2 bars which seems normal (40% SoC). Why does mine go down to 1?
     

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    #1 PriusMan2010, Jun 20, 2026 at 3:48 AM
  2. ASRDogman

    ASRDogman Senior Member

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    Is it the original battery? Mine did that when it got weak. It surprised me!
    And it would quickly charge fully, almost to the 2 tabs that indicate the terminals.

    Time for a Sodium Ion Battery Pack!
     
    #2 ASRDogman, Jun 20, 2026 at 2:45 PM
  3. PriusMan2010

    PriusMan2010 New Member

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    Yes, its the original battery that has about 350k miles on it.

    I heard about that pack, I wonder how much better it is vs the standard NMH battery
     
    #3 PriusMan2010, Jun 20, 2026 at 3:02 PM
  4. ASRDogman

    ASRDogman Senior Member

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    I'm running it, it's GREAT!
    Very light, easy to install. It hold the charge much longer. You can run in EV longer than
    the oem battery.

     
    #4 ASRDogman, Jun 20, 2026 at 10:49 PM
  5. Alexikor

    Alexikor Junior Member

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    when did you install the sodium ion pack, and how has it improved your driving experience? any significant difference in mileage?

    i'm considering replacing the oem one when it dies, but the oem one is actually $400 cheaper than the sodium ion pack. plus i know i'll get ~250k miles from an oem pack. the sodium ones look attractive than oem- more power for longer EV use, about 45lbs lighter, slightly more overall power, but i've seen too many good things about it
     
    #5 Alexikor, Jun 21, 2026 at 4:57 PM
    Last edited: Jun 21, 2026 at 5:23 PM
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