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No conversion 12 volt battery

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by andyprius, Dec 4, 2010.

  1. andyprius

    andyprius Senior Member

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    Went to Batteries Plus and they carry the same battery as the OEM. It is a 46B24R, 46Ah, NS60. Exactly the same post. Cost: $110.00. Batteries Plus also had a load tester to determine the condition of your old battery. If you can live without a external vent, it should work fine. Or drill a hole above the electrolyte level. It doesn't much matter as the air vents outside anyway. Brand name: Yuasa, made in Free China! :cheer2:
     
    #1 andyprius, Dec 4, 2010
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    #2 Patrick Wong, Dec 4, 2010
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  3. andyprius

    andyprius Senior Member

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    Pat, You are just always correctly precise. True the battery is a AGM but the same post, the same physical size, 8 more Ah and cheaper than the Toyota Dealer. Did you miss the price I quoted? $110.00 at Battteries Plus. Last time I looked it had charged up to 14.7 Volts. The invoice that came with the battery did have some funny numbers on: it showed $239.98 extended (?) I am not sure what that means. Anyway I only paid $110.00 Actual part # on the invoice is: 12 V 44AH AGM CU TERM
     
    #3 andyprius, Dec 4, 2010
  4. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    Andy I have two Worries:

    1) every lead acid battery generates Hydrogen, a flammable gas. Since the Prius has the battery in with the passengers, any fire will be in the cabin. This may be fine if you do not like the people who ride in your Prius

    2) every lead acid battery contains sulfuric acid as the electrolyte. Since the Prius has the battery in with the passengers, a battery that is flooded with acid will spill into the passenger compartment, while an Absorption Glass Mat battery will hold most of the acid in a fiberglass mat, so your passengers will not get acid burns.

    Other than that it sounds good, but for me, I can't get past those two points.[FONT=Geneva, Arial, Helvetica]
    [/FONT]
     
    #4 JimboPalmer, Dec 4, 2010
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  5. andyprius

    andyprius Senior Member

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    In looking closer at the part #, I corrected the above post, it is a AGM. As far as the danger of hydrogen, it is a minsicule amount and I have never heard of anybody being injured or killed by hydrogen gas escaping from a 12V Battery. I drove my beetle for 10 years, with my children generally in the back seat, battery under seat. A couple of times we traveled with 6/7 people in the car. No one ever complained of Hydrogen gas. Other gases, Yes.
     
    #5 andyprius, Dec 4, 2010
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  6. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Hi Andy,

    Yes, I saw the $110 price. Please take photos of the battery before you install it, and post.

    Also, if the battery case is translucent, please look through it (hold a trouble light on one side of the case and view the other side.) Can you see the liquid acid in the battery? If the battery case is black, please shake the battery to see if you can hear liquid moving around in it.

    Good luck with your installation.
     
    #6 Patrick Wong, Dec 4, 2010
  7. andyprius

    andyprius Senior Member

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    :cheer2:
    Hi Pat, Thankyou, I have already installed the battery. I'm going over to the store tomorrow and talk some more with the person that prepared the battery. He had 2/3 small orange packets to dump into the battery. The quantity wasn't at all like what would be needed for a wet cell.
     
    #7 andyprius, Dec 4, 2010
  8. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Well, if anything was added to the battery then I would conclude this is a standard flooded battery. If AGM, nothing would need to be added since the battery is sealed.

    Also, see the spec sheet that I had provided a link to in my prior msg, which quotes a "dry" shipping weight and indicates that 109.3 fluid ounces of acid must be added.

    Further, note that 5 hr capacity is 36 Ah, which is basically the same as the original equipment battery.
     
    #8 Patrick Wong, Dec 4, 2010
  9. Bob Comer

    Bob Comer Active Member

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    Thanks, that's good to know why the OEM battery is the way it is.
     
    #9 Bob Comer, Dec 4, 2010
  10. fuzzy1

    fuzzy1 Senior Member

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    Absent fire or explosion, how are those passengers expected to even detect hydrogen gas?
     
    #10 fuzzy1, Dec 4, 2010
  11. northwichita

    northwichita .

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    [QUOTE=fuzzy1;1222494]Absent fire or explosion, how are those passengers expected to even detect hydrogen gas?[/QUOTE]

    The sulfur compounds from a bad battery are unmistakable.

    The HV battery vent system also has a large vent for the 12 volt battery . Interesting the concern over the lack of a very small vent line.......as long as its an AGM battery I'm fine with it, Thanks andyprius

    picture of the vent in this link
    http://priuschat.com/forums/gen-ii-...2v-battery-replacement-preemptive-strike.html

    per link discussing AGM batteries
    http://www.windsun.com/Batteries/Battery_FAQ.htm
    AGM's do not have any liquid to spill, and even under severe overcharge conditions hydrogen emission is far below the 4% max specified for aircraft and enclosed spaces.


     
    #11 northwichita, Dec 4, 2010
  12. johnjamis

    johnjamis Junior Member

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    I just asked my Toyota dealer for 10% off on the Toyota battery and he said fine. $125 + tax. Kerry Toyota, Florence Ky.
     
    #12 johnjamis, Dec 5, 2010
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  13. andyprius

    andyprius Senior Member

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    The sulfur compounds from a bad battery are unmistakable.

    The HV battery vent system also has a large vent for the 12 volt battery . Interesting the concern over the lack of a very small vent line.......as long as its an AGM battery I'm fine with it, Thanks andyprius

    picture of the vent in this link
    http://priuschat.com/forums/gen-ii-...2v-battery-replacement-preemptive-strike.html

    [/QUOTE]
    I have edited my post, it appears my new 12V is a wet cell. I have to go back to the store and clarify. TY
     
    #13 andyprius, Dec 5, 2010
  14. richard schumacher

    richard schumacher shortbus driver

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    Yes, the *sulfur* compounds are unmistakable. Hydrogen gas, created by electrolysis during overcharging, is odorless.
     
    #14 richard schumacher, Dec 6, 2010
  15. JimboPalmer

    JimboPalmer Tsar of all the Rushers

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    [ame="http://en.wikipedia.org/wiki/VRLA"]VRLA battery - Wikipedia, the free encyclopedia[/ame]

    Some folks have commented on the long time needed to fully charge the 12 volt battery in the Prius, I think this explains that.
     
    #15 JimboPalmer, Dec 6, 2010
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  16. dufferjames

    dufferjames New Member

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    Where are the recommended points (or Terminals) beneath the engine hood to connect an alternate 12 volts while the auxiliary battery is removed?
     
    #16 dufferjames, Jan 19, 2011
  17. Patrick Wong

    Patrick Wong DIY Enthusiast

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    1. Open the hood.
    2. Find the main relay/fuse box next to the inverter. Press hard on the latch at the front of the box lid, then pivot the lid up and remove it.
    3. Note the red plastic cover which is hinged on one side and has a latch on the other. Release the latch and pivot the red cover up.
    4. Now you can see the dedicated positive jumpstart terminal. Attach the + lead to that terminal. Attach the - lead to one of the nuts that secure the strut top mount.
     
    #17 Patrick Wong, Jan 19, 2011
  18. wildbottom

    wildbottom New Member

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    Ask YUASA about 46B24R, lady said it's a Flooded battery.
     
    #18 wildbottom, Feb 6, 2011
  19. vertex

    vertex Active Member

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    #19 vertex, Feb 6, 2011
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