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Battery on the energy monitor screen stuck at two bars

Discussion in 'Gen 2 Prius Main Forum' started by qmanqman, May 6, 2024.

  1. qmanqman

    qmanqman Active Member

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    I just jumped on the highway for an 80 mile one-way trip. About 1 mile into the trip I look over at the energy monitor screen and the battery is at two purple bars. It dropped down to one bar and has since come back up to two but it won't go any higher.

    Just a little recent history. Cars been running perfectly since I bought it back in december. Last week it said in an airport parking lot Tuesday Morning through Friday evening. When I got in and drove it home on Friday it smelled like a cat had urinated in my car. It sat all weekend and when I got in it this morning to drive to work I thought I was going to stink again but it did not. My drive to work is about 10 miles and about 8 miles from home the smell started again. I got in it after work and the smell is gone and is gone now.

    I'm wondering if you guys have any ideas on why I'm stuck on two purple bars. Just thought I'd throw you the recent history out there in case that cat piss smell means something.
     
  2. qmanqman

    qmanqman Active Member

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    Okay so I drove 40 miles at the two bar level. I typed in the post above, clicked on create thread, and I looked down and watch as the third bar pops into the screen and it turns blue couple minutes later now and I have a fourth bar blue. Was I crying wolf?
     
  3. Tombukt2

    Tombukt2 Senior Member

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    How old is the battery You should be able to take a guess Is there a QR code on top of the battery on one of the labels then it's probably been replaced since the car was new . Usually here in our situation with the four Prius that we have when the battery is starting to fail it will go very quickly from magenta to blue four or five bars back to green almost the same height as the blue stay at the green for a very short time I'm talking about 90 seconds and then be back to blue or back to magenta then to blue it just depends on how bad the battery is You have to watch the energy monitor very carefully when it starts to bounce between the three colors in like a 90 second time frame this indicates that the battery is all over the place on holding the charge maintaining and using that charge that it's getting this is what we've noticed on all four of ours we have replaced four batteries in four chassis and like the last 3.5 years every time I get one of these cars I drive it and watch the battery get driven right into the ground and then when I change it looking under the hood of said battery confirms why it's driven into the ground corroded bus bars bars that used to be bright beautiful copper like on the peaks of nice expensive roofs and stuff is now black The nuts are frosted to the point where if you grab them with your fingers you can feel the frost adding thickness to the girth of the little nut that it is and all of that You can see videos of this nonsense on YouTube and places all day long so there's always that.
     
  4. qmanqman

    qmanqman Active Member

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    Battery is probably original to this 2007. Everything seems to be normal again. It was super windy the past couple days and I'm guessing I was driving into the teeth of the wind last night. That must have been the culprit. I do this drive from time to time and I've never had it drop like that. Oh well . . . sorry to bother y'all. I was sure I was witnessing the death of a battery.
     
  5. Tombukt2

    Tombukt2 Senior Member

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    If the battery is original to the car you should be witnessing the death very soon keep an eye out for the above problems and then you'll know and then you'll figure out what game you're going to play with the battery modules and all of that It is coming and it should be soon so just be aware of that it shouldn't leave you stranded but when all of a sudden your gas engine is running all the time The fan is on in the back and you're getting about 38 mi to the gallon well we'll know.
     
  6. TMR-JWAP

    TMR-JWAP Senior Member

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    You may want to verify the inverter cooling water pump is ok. Half the time, when it fails, it will emit an acrid odor (acrid = cat piss? idk...) due to some potting material on the bottom overheating. Many times, if it experiences that failure mode, it will eventually blow the AM2 fuse, which will completely kill the car, even if you're in the middle of driving. Makes for a significant pucker effect.
     
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  7. qmanqman

    qmanqman Active Member

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    Doesn't the car set an OBDII code when the pump starts to act up?

    Another question, I see there are cheap pumps $20-30 range and then it jumps up to the Asin at $110 and the Genuine Toyota at $130. I bought the Geniune Toyota for my daughter's 2007 back in 2020 for $53 off Amazon. Guess prices have gone up.
     
    #7 qmanqman, May 7, 2024
    Last edited: May 7, 2024
  8. Tombukt2

    Tombukt2 Senior Member

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    Usually when my inverter pumps the two that burn up will actually only one burnt up the other one just stopped working The one that burn up in my gold 09 smells like electrical smell like ozone like right after a lightning strike very clean smell actually so I guess I must have missed the part where the silicone or the glue or whatever burn off but I did smell the electrical burning It burn all the way up to the plug luckily it didn't damage the plug.
     
  9. dolj

    dolj Senior Member

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    Nope. There is a code, though, that sets when the inverter is getting too hot for its liking.
    It wasn't a genuine Toyota pump even though it was advertised as such and it probably even came in a box that looked like the boxes Toyota uses. Or it wasn't new.