What my battery looks like in dr prius

Hi Natalie!
Welcome to PriusChat!
May I ask about your vehicle? Year of manufature and miles on the clock. Any other info will be helpful too.
From the looks of it, you have a few spikes of elevated internal resistance, which might be due to insufficient cooling of the packs with a clogged filter screen. Driving short distances and running the vehicle on low charge can also do that.
There are lots of knowledgeable members here which will be able to give you more comments with more info.
Welcome to the group!

 

Seems a lot of issues in the same basket. 235k is pretty good considering everything was from the factory? A good 12 years, did you take ownership a year ago or since new?
I vote for a trade in at this point

 

Any one of those items might be worth repair/replace, but the combination would amount to a cost equal to another Gen2 with less issues.

 

I wonder would a cleaning of the busbars and nuts improve those resistance numbers?

And for sure clean the fan and ductwork too.

 

The tempn on the battery isn't crazy high but yes in the meanwhile clean the fan and wait for tax return +

 

Cleaning the fan doesn't take much effort (beyond making it happen), and it will guide you towards some of the steps involved in replacing a failed HV battery module. You'll need some basic tools, and a metric socket set to tackle the job

Looking at or cleaning up the HV battery is a great idea, and once inside, you may notice that you need a new 'voltage sensing harness'.

Since you're still using it as a daily, you might wait until you have some/all of the parts to throw into it, like a set of stainless nuts, and the replacement module(s). You'll also need a 1/4 drive torque wrench if you get into that deep.

 

Torque for the nuts on the bus bars is 48 inch pounds. That's 4 foot pounds, very low value.

 

Follow the battery health test in the app and report back here.

The picture you posted shows the battery barely under any load at all. (2amps).

In your other thread it sounds like your Prius has thrown a battery block error code.

Do the full test. It will help identify the health.

 

Not very interesting or helpful.

Take a pic like this when aggressively accelerating. Or aggressively braking.
This and other pic are with only a 2 amp load. Under driving conditions it will be much higher loads.

Or use the app as intended and do a battery health test. Report the results here.

 

The Dr. Prius app will walk you through the steps.

You can watch these videos from the app's website if you need additional help.

Hybrid battery diagnostic and repair tool for Toyota and Lexus
- Find the trouble battery blocks
- Android - Find out the remaining life of the Prius traction battery
- iOS- Find out the remaining life of the Prius traction battery

 

I just test drove a 2012 Toyota Prius II for about 20 minutes. I plugged in my OBDII link to check the battery health while I was driving but I don’t know how to analyze the results and if the battery is healthy. It only has 79,000 miles on it and it’s listed at $12,000. I’m still in college so I can’t afford to buy a car and then go and pay for a hybrid battery replacement. Can anyone help me analyze the battery health?

 

If budget is a concern, I would not get an old hybrid. Go look at a Yaris, Civic, or Corolla. There are many potential $$ on a 2012 Prius (or it could be fine for years).

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