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Duralast Gold 51-DLG

Discussion in 'Gen 2 Prius Technical Discussion' started by Branndon, Jul 4, 2013.

  1. Branndon

    Branndon Junior Member

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    My Prius is set up with the standard sized battery terminals. I'm not sure why, as it's used.

    I don't know enough about batteries, and this is the one AutoZone gave me Duralast Gold/Battery (51-DLG) | AutoZone.com

    My concern is mainly venting, and whether or not it's going to work for my Prius long term. Can you see any reason why this one shouldn't be used?
     
    #1 Branndon, Jul 4, 2013
  2. bisco

    bisco cookie crumbler

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    i think venting is a good idea for a battery inside the cabin. i would return it ang go for the optima or toyota oem. all the best!(y)
     
    #2 bisco, Jul 4, 2013
  3. TampaPrius.com

    TampaPrius.com Active Member

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    The Exide is also an option.
     
    #3 TampaPrius.com, Jul 4, 2013
  4. Branndon

    Branndon Junior Member

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    Batteries can't be returned that easily. I was just asking if there were any reasons not to use this one. If it's venting, is it possible that I can vent this one properly?
     
    #4 Branndon, Jul 4, 2013
  5. Branndon

    Branndon Junior Member

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    Is there some sort of article or page specifically on venting a battery such as mine? I'm starting from a blank slate and don't even know what to google to make this battery work for me so I'm not out $120 or so.
     
    #5 Branndon, Jul 6, 2013
  6. Patrick Wong

    Patrick Wong DIY Enthusiast

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    I assume that you installed the replacement battery yourself. If you look at the original equipment battery, you will notice that the top of the battery was sealed, it had a vent opening on one end, a plastic fitting that plugged into that hole, and a rubber tube leading from the fitting to a grommet in the body floor which leads to the exterior.

    The replacement battery does not have a vent opening on the side. Rather each cell is individually vented via the rectangular covers on top of the battery. Hence this means that in the event that the battery is overcharged, hydrogen gas will be released into the hatch area which is a potential fire hazard. The reality is that the likelihood of this particular hazard occurring is low.

    Another potential risk is that since your replacement battery is the traditional flooded lead acid design, in the event of an accident which impacts your right rear fender, the battery case, if cracked, will release acid into the hatch area. That is a more significant issue in my opinion.
     
    #6 Patrick Wong, Jul 6, 2013
  7. SteveLee

    SteveLee Active Member

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    If you are not satisfied with the battery, since Autozone recommended this battery, I would go back and tell them they recommended a battery that is unsafe for this application. It is not an AGM battery that limits acid spray in the cabin in the event of catastrophic accident and it is not vented to prevent hydrogen gas buildup in the cabin. This flooded battery is not the type of battery designed for this use. They should have known better.They do have access to batteries for this application.

    Another option is described in this thread.
    Fitting mobility 12volt AGM battery. | PriusChat
     
    #7 SteveLee, Jul 6, 2013
  8. bisco

    bisco cookie crumbler

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    they actually show optima in the o/p's original link.
     
    #8 bisco, Jul 6, 2013
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