Quote:
Originally Posted by broski499
I bought the Dr. Hybrid app on ios and found it didnt work with the OBDI device I had. Apparently, there is a wide range of obdi sensors and some are garbage when it comes to what kind of data they pull from the OBDI port.
Luckily the Dr. Hybrid app has a blog and they went through and tested a bunch of the devices to see which ones work for their device both in android and iOS.
For iO2 the Carista OBDI bluetooth sensor is your best option as you get the bettery data. They have different tests you can run to get an idea of your battery health. They are only $20.
It has you charge up your battery and then by utilizing your AC, headlights, and radio to discharge the battery it calculates how long it takes to drain your hybrid battery. Really an interesting process.
I tried to save the photo of the results but the app crashed, I'll screenshot it next time. You also get real-time data on the voltage across your battery packs. I'll take a screen shot and post it here next time I do the test.
My battery pack was shown to be at 54% health. For a 2008 Prius I thought that was pretty good.
My question now is would the battery conditioning products help prolong my battery health, and if so by how much? I know that they help rebalance the batteries and bring back some of the battery life, but how much is to be expected?
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There's 3 questions in there...
Yes. Near new. Unknown.
Here's something I posted in 12/15 showing the before and after reconditioning tests using a similar discharge method (but more aggressive as I was modulating throttle):
https://priuschat.com/threads/quanti...charge.160062/
The images are broken from when Dropbox changed things, but the table summarizes it nicely.
Hybrid Automotive put it on their website with my permission:
https://hybridautomotive.com/indepen...tream-testing/
After I conducted that testing, I became an authorized installer for HA products. I know the owner, and I have some of their equipment. I do NOT receive any compensation for recommending them.
To your last question, the subject car operated trouble-free (battery-wise) for another 3 years with no additional reconditioning treatments. The car was otherwise fairly abused having been in multiple accidents and barely surviving their teenage daughter's first years of driving. The car eventually coded, but the owner was done with it, and some foolish dealership offered him $2400 for it with whatever was wrong with it.
In my experience, when a battery in the Phoenix area fails, it is typically at the 25-30% state of health (25-30% of rated capacity) when a cell drops out. In milder climates, this is not true as batteries fail at much higher states of health because less capacity is lost due to heat.
Note that any measurement reported by Dr. Prius or Hybrid Assistant or even my numbers reported with Techstream is essentially reporting the health of the WEAKEST BLOCK as the 14 block voltages are what determine utilization, not the total pack voltage. Most packs have a wide range of deterioration on a block basis.