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Prius and the 12V Battery

Discussion in 'Gen 2 Prius Main Forum' started by Presto, Jul 8, 2008.

  1. Presto

    Presto Has his homepage set to PC

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    2005 Prius
    I just swapped the 12V battery today with a new oem battery. I know the 12V is far past it's typical, useable life. It's been begging for a change for the last year. I'm pretty sure I killed it early on when I first installed the stereo equipment. Before I changed the battery, I took a reading of the old one. 10.3V!! 10.3V and the Prius is still able to boot. How awesome is that?

    I wonder, what's the minimal amount of current needed to power up the computers and relays? Would an 8-Cell alkaline pack made with AAs be enough?
     
    #1 Presto, Jul 8, 2008
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    The peak current required is ~30A. I doubt that AA batteries could deliver that amount of current flow.
     
    #2 Patrick Wong, Jul 8, 2008
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