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Prime 2023 12V battery integrity on EV

Discussion in 'Gen 5 Prius Technical Discussion' started by hb06, Apr 13, 2023.

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  1. Gokhan

    Gokhan Senior Member

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    So, AGM batteries are not immortal after all. ;)
     
    #81 Gokhan, May 3, 2024
  2. Gokhan

    Gokhan Senior Member

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    Reading about it, the main advantage of AGM batteries seems to be lower self-drain, ~ 2% per month vs. ~ 5% per month for a calcium battery.

    AGM batteries seem to have shorter longevity vs. properly maintained flooded-cell batteries.

    Does the self-drain advantage matter given that Gen 4 and Gen 5 Priuses have a high standby drain? Probably not. That would explain why Toyota might have opted for a flooded-cell battery, especially given the higher cost of AGM.
     
    #82 Gokhan, May 3, 2024
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