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Fuel mileage and battery age

Discussion in 'Gen 3 Prius Main Forum' started by Noz, Feb 24, 2010.

  1. Noz

    Noz New Member

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    Any correlation between battery life and mileage over time?
     
    #1 Noz, Feb 24, 2010
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  2. miscrms

    miscrms Plug Envious Member

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    The DOE ran the Gen 1 Prius out to 160,000 miles, and while they found the battery capacity degraded by ~50% there was no significant drop in mileage. The batteries in the Gen 2 & 3 are improved over the Gen 1, and should be even better. Under most normal circumstance, mileage is not a major function of battery capacity.

    http://avt.inel.gov/pdf/hev/end_of_life_test_1.pdf
     
    #2 miscrms, Feb 24, 2010
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  3. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    Be aware that the 12v battery (like any car) has a life of about 4 years (like any car) and that some of it's failure modes can effect mileage, as the car is trying to recharge it constantly. So if you 12v battery is over 4 years old, have it checked out.

    (unlike any car, the prius does not start slower as the battery ages, as the 'starter' runs off the 201 v battery)
     
    #3 JimboPalmer, Feb 24, 2010
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