Mileage and HV battery replacement?

Time counts more than miles in my book. If you can get a used battery from say, a crashed 2016 car? I'd expect that to work well. I wouldn't go for a low-miles 2013 battery, in contrast.

Heat is a life-limiting factor with these batteries, both in storage and operation. If you can get that battery from a car that spent more of its life up north, I'd expect better-still results. Until then, use a lot of air conditioning, keep the battery fan clean and you'll pull another couple of years out of the one you have.

 

congrats!
depends on how long you want to keep it, and how much you trust ebay

 

How is the vehicle running and operating?
If you have no codes, and the vehicle is performing OK...then my advice is to ignore the "life expectancy": reading, and just drive it.
I'm personally dubious about the ability for any diagnostic to predict life span.
But even if you want to believe it totally accurate, my advice would be just drive it and see what 24%, would translate into being. That could be years.
In the meantime, you could casually put some money back, for when you DO start getting codes and evidence that the Hybrid Battery is failing.
But I wouldn't necessarily choose to replace at this point, if the vehicle is running and operating. You may be nearing the point where the investment becomes necessary, but 24% life capacity left, doesn't mean it's failing today. Investment IMO premature.

 

What are the terms of the warranty? Specifically worth asking: What is the threshold for failure? What would their remedy be? Is that one replacement per lifetime or do they just give you a battery good for one more year each year forever? Are you okay with the labor to install it/them?

$2k to get 8-ish years vs. $750 to get 1-2 years is how I see this.

 

agreed, depends on how long you want to keep her

 

IF the vehicle is driving fine, no codes, no failures, I still would just drive it.
Without the Dr. Prius app, that's pretty much how most people deal with it.
It's NOT exactly ignorance is bliss, but IMO the Hybrid Battery is kind of a use it...until IT tells you it's time.

The diagnosis may be right on, so you could start having problems, tomorrow. BUT...the converse is, you could go months, potentially even longer.
I personally wouldn't replace a battery that is functionally still working, because a diagnostic app is telling me the battery will need to be replaced "soon".
I would sit back, and see how long "soon" can become.

In the meantime, the advantage knowing the battery is on the weaker side, is being able to put money back, and make decisions about how you want to handle the situation WHEN you start to get codes, and failure has arrived.
Until then? IMO you have a working Prius with a working battery.

 

1.42v difference between blocks is huge. Not sure how that can only occur sometimes. How often have you had to clear the codes?

 

That is still a huge difference. It should be closer to 0.1v. You need a replacement soon.

 

Save it Prolong Battery Systems. Extending the life of your hybrid. — Hybrid Automotive

Then fallow some tips I wrote on keeping temps down from previous threads.

Done right the batter will last a very long time.