1. Attachments are working again! Check out this thread for more details and to report any other bugs.

12v duralast 8amu1r battery can fit prius

Discussion in 'Gen 2 Prius Main Forum' started by ski.dive, Jan 8, 2011.

  1. richard schumacher

    richard schumacher shortbus driver

    Joined:
    Mar 27, 2004
    7,663
    1,038
    0
    Location:
    United States
    Vehicle:
    2004 Prius
    Model:
    N/A
    Please let us know how that works out.
     
  2. wildbottom

    wildbottom New Member

    Joined:
    Dec 13, 2007
    99
    2
    0
    Location:
    California
    Vehicle:
    2005 Prius
    Did you get a Price Quote for the PVX-420T?
     
  3. dogfriend

    dogfriend Human - Animal Hybrid

    Joined:
    Feb 26, 2007
    7,512
    1,185
    0
    Location:
    Carmichael, CA
    Vehicle:
    2007 Prius
    1 person likes this.
  4. Wingding

    Wingding Junior Member

    Joined:
    Jan 27, 2011
    41
    5
    0
    Location:
    Montana/Michigan/Pennsylvania
    Vehicle:
    2005 Prius
    Model:
    N/A
    I was set to get a optima D51 today but I see in this thread the Werker 12v- 35ah {Werker SLAA12-35C.}

    It's for sale for $67.49 plus 16 shipping to me .. Thats apx. $84 vs $165 and Im not sure the shipping for the optima.


    My question is..... IS THE WELKER A ACCEPTABLE ALTERNATIVE?

    Thats a huge difference in price... There is no vent pipe though.....
     
  5. wildbottom

    wildbottom New Member

    Joined:
    Dec 13, 2007
    99
    2
    0
    Location:
    California
    Vehicle:
    2005 Prius
    Model No. for vented battery is Werker SLAA12-35C. I couldn't find the vented one Online. If you could find a Batteries Plus nearby, call and ask. The vented one has grayish top.
    Werker is Batteries Plus's house brand. They are franchise owned. (Might be different from the Online store). So the franchise owner usually buys whatever they get cheapest and locally. I've heard some stores get batteries from Exide and East Penn(USA made). And Exide is not so good(maybe China). If you can, you should go and see for yourself to find a Quality battery. Plus it's $67.49 w/o shipping. (You'll need to RMA for Returns on Online purchases.)

    Oh yeah, remember to ask them to check the voltage on the battery before you buy since then don't maintain the charge for AGM batteries which they do for flooded ones. You shouldn't buy an AGM at full price if it's less than 12v. At least 12.5V is best. AGM loses 10% of charge per month on the shelf. It's recommended to charge them every 2-3 months.
    Check for Date of Manufacture. Probably shouldn't be month than 5-6 months. Quality AGM batteries should have Date info and provide MSDS papers. (You should be able to find the Manufacturer's Name on the MSDS as well.)
    The UB12350 batteries(33Ah) probably not a good choice if you have very cold winters. It has lower rating than the OEM with SKS(45Ah).
    UPDATE: Looks like the SLAA12-35C needs some sort of conversion.
     
  6. wildbottom

    wildbottom New Member

    Joined:
    Dec 13, 2007
    99
    2
    0
    Location:
    California
    Vehicle:
    2005 Prius
    So are the JIS post for converting a bolt from a larger to a smaller diameter?
    What's the size of the battery ring terminals on the 2nd Gen Prius? Thanks.
     
  7. dogfriend

    dogfriend Human - Animal Hybrid

    Joined:
    Feb 26, 2007
    7,512
    1,185
    0
    Location:
    Carmichael, CA
    Vehicle:
    2007 Prius
    2nd Gen Prius has JIS posts that look like regular SAE battery posts but are smaller in diameter. That is why you need a battery terminal kit if you want to install a Optima D51 (the Optima has SAE battery posts).

    The JIS posts that I linked to in an earlier post convert from M6 threaded sockets to JIS battery posts. It is essentially a brass JIS post with a M6 stud on the bottom to screw into the threaded socket.
     
    1 person likes this.
  8. wildbottom

    wildbottom New Member

    Joined:
    Dec 13, 2007
    99
    2
    0
    Location:
    California
    Vehicle:
    2005 Prius
    Looks like what I need. Thanks.
     
  9. Hal W

    Hal W New Member

    Joined:
    Sep 26, 2010
    872
    53
    0
    Location:
    Grand Forks,B.C. Canada
    Vehicle:
    2006 Prius
    Model:
    II
    skydive, It is 8 years old this year. Great battery! H
     
    1 person likes this.
  10. Hal W

    Hal W New Member

    Joined:
    Sep 26, 2010
    872
    53
    0
    Location:
    Grand Forks,B.C. Canada
    Vehicle:
    2006 Prius
    Model:
    II
    I will go with the Prius original when the time comes. Don't want to experiment with the Prius. I prefer to keep it original! H
     
  11. wildbottom

    wildbottom New Member

    Joined:
    Dec 13, 2007
    99
    2
    0
    Location:
    California
    Vehicle:
    2005 Prius
    I called Concorde Office in West Covina, CA. It's $110 plus $25 shipping(UPS Grnd). It'll be $145 /w tax for me for Northern CA. Not bad for a battery that suppose to be better than the Optima. Add another $12 for Conversion Parts.
     
  12. dogfriend

    dogfriend Human - Animal Hybrid

    Joined:
    Feb 26, 2007
    7,512
    1,185
    0
    Location:
    Carmichael, CA
    Vehicle:
    2007 Prius
    Sounds good, let us know how it works out. I will be replacing my 12V soon, possibly next month (it will be 4 years in service).

    Concorde looks like a high quality AGM battery. Another good AGM battery is the Odyssey, but they do not have a model with the right form factor & terminal configuration.
     
  13. wildbottom

    wildbottom New Member

    Joined:
    Dec 13, 2007
    99
    2
    0
    Location:
    California
    Vehicle:
    2005 Prius
    More Update on the Werker Vented Battery. Case looks exactly like this linked. There are 2 left at the Store in San Francisco. Dated "E0", or May 2010. Doesn't say where it's made. It's does say it's from Ascent in Hartland, WI. and "Stationary Battery." These are use by UPS backup and Telecom. I'm guessing they mislabel it as WKA12-35C but it's actually WKHR12-33C since the case makes it fire retardant.
    Ascent is an subsidiary of Battery Plus. Werker is the brand name for Batteries Plus.
    One tested at 12.4V and the other 12.38V. Probably never been charged since they left the factory last May. Too bad they let them drop below 12.5V(when sulfation starts during self-discharge).
     
  14. wildbottom

    wildbottom New Member

    Joined:
    Dec 13, 2007
    99
    2
    0
    Location:
    California
    Vehicle:
    2005 Prius
    I'm was doing some reading and it seems all AGM batteries last longer if they are charge no more than 13.4V(Float) and top off (14V) once in a while. I wonder if there's a way to add a smart charging system for the AGM battery in the Prius.
    Plus AGM batteries might require up to 30 cycles to get max capacity. I doubt the UPS companies do that for their batteries which usually go straight to float. I would cycle a new battery a couple of times with a smart charger before I install it in the Prius to help it get max capacity. Also helps to get the benchmark of a healthy battery w/o using an EIS spectroscope.

    These two measures should add a couple of years to the life of the battery especially on long trip and in hotter temperatures.
     
  15. seilerts

    seilerts Battery Curmudgeon

    Joined:
    Mar 7, 2010
    3,326
    1,512
    38
    Location:
    Santa Fe, NM
    Vehicle:
    2005 Prius
    wildbottom, I would be very grateful if you could post pictures! Also, did you get the JIS terminal kit from Concorde or Odyssey? As much as I love my Optima, having a replacement that doesn't involve hacking the positive terminal would be a huge benefit.
     
  16. direstraits71

    direstraits71 Member

    Joined:
    Jul 17, 2008
    367
    64
    0
    Location:
    Central Coast California
    Vehicle:
    2008 Prius
    I think the Prius charging system is already adapted for AGM batteries.
    See this thread for more info: http://priuschat.com/forums/gen-ii-...charging-12v-step-change-14-0-13-5-volts.html
     
  17. tf4624

    tf4624 Active Member

    Joined:
    Dec 4, 2009
    526
    51
    0
    Location:
    USA
    Vehicle:
    2008 Prius
    Model:
    N/A
    Duralast=duraCRAP. Get optima battery
     
  18. wildbottom

    wildbottom New Member

    Joined:
    Dec 13, 2007
    99
    2
    0
    Location:
    California
    Vehicle:
    2005 Prius
    Sounds like they do have a system and it's still somewhat a mystery to quite a few posters.
    One Post said "I'm pretty sure, when this 'feature' is working, that as long as the car is in drive and the cabin fan is off, the voltage stays low and if the rear window defroster is turned on, the voltage drops further to something like 13.2 volts." It happens to some people at around the 25th minute. But if you put it in Park or Neutral it goes back to 14V and the cycle starts over. I'll have to check it next time.
     
  19. wildbottom

    wildbottom New Member

    Joined:
    Dec 13, 2007
    99
    2
    0
    Location:
    California
    Vehicle:
    2005 Prius
    Wonder if anyone tried the Optimate 4(.2A, .5A, .8A) Charger/Maintainer. Recommend for 2.5Ah-30Ah batteries(50Ah Maintainer). It's also has Charge Current regulation with temperature.Optimate 4 info
    TecMate also make the Optimate 5(up to 2.8A) and Optimate 6 (0.4A to 5A)for bigger batteries.

    Lowest price Charger/Maintainer/Desulphator is CTEK US 800 (.8A)with High Temp. Reg [$33 at Amazon]
    Another choice is the BatteryMinder line.
    Model 12117(1.3Amp) without Temp. Regulation
    and Model 12248(2,4,8 Amp) with Temp. Regulation
     
  20. 2009Prius

    2009Prius A Wimpy DIYer

    Joined:
    Mar 25, 2009
    2,705
    510
    63
    Location:
    USA
    Vehicle:
    2009 Prius
    Thanks! A quick look at the site made me worry a bit: