New Prius owner with questionable hybrid battery

Mechanic and seller the same person? One man operation? 80K, speedo rollback? Register at Toyota Owners to get prior vehicle history.
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Housing green? GreenTec.
Prius 2004-2009 | Greentec Auto

 

congrats and welcome!

regardless, there is no warranty unless you get dash lights and appropriate trouble codes.

drive and enjoy, repair if and when necessary. it's a 15 year old car, keep expectations low, and hopefully you'll be pleasantly surprised.

make you you do all required maintenance.

 

Drive the PP out of the car. When it dips a little more below that 44 miles or whatever you're saying by then you'll know it's either you're driving habits or it's the car coming from gas cars and pretty much driving with a heavy foot which is me all my life I just moved to prii. About 4 years ago and even when I first sat in the first one I was getting 47 miles to the gallon and the car I was driving was rated for 47.1 new from the factory. And that said car was approaching your car's age two owners right at 260K. That same car the '09 is still getting that mileage today and it went down to a low of 37 ice engine on all the time when my hybrid battery was seriously failing fan on in the back never turning off all that like you read about here sounds like you may be headed to that soon. And if you do hit that if you can muster the belief that a new battery is a good thing do it because I bought a brand new Toyota battery and the car went right back up to 47.1 even with bad brakes. And is never look back since this was about 9 months ago something like that 7 months ago and this is an old '09. We also have two generation 3s we don't want to go into that now

 

no, you need a code with any company.

and with no warranty, it would be an issue anyway. is doc prius always correct? i don't think so. but that doesn't help you determine the health of the battery.
see if you can run the block voltage test under load, and post the results here.

 

agreed, and art knows what he's talking about. you can sleep peacefully now

 

No real concerns - yet. Brief voltage differences up to 0.5V are normal. Having the pack voltage go "into the red" is kind of a software error. On that screenshot you're braking moderately, which charges the pack. Voltage is higher during charging but will drop some as soon as charging ceases.

If the pack voltage was 270+V static (at no amps), then the ecu might get unhappy.

Really, unless (until) you get performance problems along with codes, all you can do is drive the car. Read posts here on the forum. Educate yourself about battery replacement and what else can happen on these cars. Enjoy.

Posted via the PriusChat mobile app.

 

i'm not sure doc prius can be trusted

 

buy a sleeping pill and throw away that Dr Prius App, you're too obsessed about an app that doesn't tell you WHEN it's going to break. In the world of electronics anything could happen ANYTIME.. you're lucky that the mechanic gave you a 1 yr warranty and you don't have any codes showing up. Did you over pay for this car?

 

Refurbished batteries using used cells are a crapshoot.
Dr Prius app is useful to a point. Look at your IR readings generally and your cell #9 voltage.
Looks to me like you may have a failing cell or one that needs further driving to balance it. Hard to know more without knowing where the battery came from.
Why would anyone not want to disclose the source of the battery unless they already knew it was crap? For $1500, they should have gotten a good replacement with new cells.
Also as @Tombukt2 noted, unless you’re used to changing driving habits to Hybrid methods, your mpg can be degraded substantially. Use cruise control as much as possible, it really helps.
Finally, check the MAF, air filter and even plugs despite supposed low mileage.

 

this is merely a guess based on what is seen at that instant, if you could tell us what day it will fail then for sure this app is better than Nostradamus. Even Nostradamus make his predictions vague..

One sided claim from OP (maybe he didn't just politely asked the shop, or the shop just really don't know) I'm interested on where you could get new cells for $1500! I know they are selling modules..

 

A new rack of cells in a metal case like you have now from toyoda is was about 1500. It needs you're front end of your battery you're running now! Just bought 7 or so months ago from toyoda 8. Apex NC. ?

 

I'd not over worry it either. Drive it a while and see if it either improves as Prius batteries often do with driving or throws a code in which case you can file a claim.

 

If you have a 1 year warranty with the mechanic, then you don’t need to worry about anything for a year until / unless something goes wrong. If your battery charge gauge starts bouncing up and down rapidly, you have noticeably less power, or your fuel economy drops to the 30s or worse, then it’s time to start asking about fixing or replacing the battery. But if those things don’t happen, then the car is fine and you might as well enjoy it!