Help with battery/electrical issue

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by ru5real, Jan 13, 2016.

  1. ru5real

    ru5real Junior Member

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    Hi. Recently, my Prius hasn't been getting much use, so the 12v battery drained. The car worked ok after I gave it a jump. But, because I don't drive the car very much, the battery drained again, maybe completely.

    When I jumped it again, the car ran ok, but the red triangle is displayed, along with the check engine light on the dash, and a red car icon on the MFD. The car drives, but the lights are on.

    Before replacing the battery, should I take any steps? Thank you.
     
  2. bisco

    bisco cookie crumbler

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    it might just be the 12 volt. but if you don't want to replace it in case something expensive is wrong, and you might not want to spend the money, you should have the trouble codes read.
     
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  3. Bill the Engineer

    Bill the Engineer Senior Member

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    A replacement 12v is a lot cheaper than many other things that you could try. I am also using a solar battery trickle charger on the project car's 12v battery, keeping it charged over the winter. If the car sees any sun, you can leave the solar charger panel in the cargo area while it is parked. They can be found at most auto parts stores.

    Bill the Engineer
     
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  4. 48mpg

    48mpg Member

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    I keep a solar charger hooked to mine all the time....just bought a yellow top and don't want it to run down in the frigid florida winters, down to 42 tonight
     
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  5. ru5real

    ru5real Junior Member

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    Thanks everyone. This morning, the car started up fine and only the check engine light is still on. I performed a battery check from the MFD screen and the voltage, even with load, seems ok.

    Regarding the solar charger, is there a good one for the Prius with auto shutoff?
     
  6. tommymommy

    tommymommy Junior Member

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    Heads up to anyone looking to purchase a new battery for ELearnAid. I just ordered my second replacement Optima D51 from them. They must be out of them. They sent the DS46B24R. The posts are Japanese style, but do not fit the new Toyota terminal post connectors. Since I had to install the D51 with the conversion kit, I no longer have the original Japanese connectors. I was not notified of this change prior to shipping. Very disappointed! My car needs a battery and I was planning to install tomorrow. Now I'll be combing the junk yard looking for terminal post connectors.
     
  7. ericbecky

    ericbecky Hybrid Battery Hero

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    May be able to get connectors/post converters from your local parts store.
     
  8. 48mpg

    48mpg Member

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    I got an Optima yellow top from Advance auto for the same price as they sell at on line stores of $147.00, I went to their website and used the chat box and asked them to price match this website,

    http://www.streetsideauto.com/p/optima-yellowtop-deep-cycle-ds46b24r/?utm_source=googlepepla&utm_medium=adword&gclid=CImA5auor8oCFVcbgQod6BsARA

    they did and credited the core charge when I picked it up locally and dropped off the core my total was 160.83 with tax and 3 year warrantee, it was worth the 12 bucks tax knowing I can exchange it at any store without having to ship it back then wait a week for the new one to show up if they are in stock
     
  9. tommymommy

    tommymommy Junior Member

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    That one is not the D51 I had the connectors for. It turns out he assumed I wanted the new one because I ordered it with the kit. I had to purchase the Japanese style terminal post connectors from a dealership in Oregon. Got it installed. All is done.
     
  10. 48mpg

    48mpg Member

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    im not sure what connectors you mean....mine hooked up fine without anything special..all the cars come from japan so the connectors should all be the same
     
  11. Patrick Wong

    Patrick Wong DIY Enthusiast

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    TM previously had replaced the original equipment battery with an Optima battery that has the larger-diameter battery posts, not the JIS-standard posts. Hence the original battery connectors also had been replaced, and apparently the original connectors were lost or discarded.

    Then, TM had to find a source for the JIS-standard battery terminal connectors when the first Optima battery failed and was replaced with another Optima, this one having the correct JIS-standard posts.
     
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