amdaxiom

Well, you are definitely out of warranty, as was I. Lexus Corporate did offer to help cover half my costs and my dealership gave me some additional discounts so I ended up paying under 3400$ for everything for a new battery. Granted I was at 100K but I was almost 8 months over the 8 years.

I'd go for a Greentec battery or see if one of the Prius battery shops can repair some of the bad cells. With all the hybrids on the road there are independent shops that are getting pretty good at finding and changing out some of the bad cells in your battery sand saving you thousands of dollars.

Daymaker

So I live in Newport Beach as well and my 08 gs450h needs a new traction battery. Who helped you at Newport lexus. My lexus is 8 months out of warranty but has less than 69,500 miles on it. She's basically new still.. could you share your service techs name with me so I can see if he or she can help me out too. Westminster lexus wants over $6,000 to fix it . They were the closest dealer to me when lights came on.

mitsuguy

iTrader: (2)

You probably won't get any relief, I had a similar situation, well under mileage, but over on time.

Lexus was no help.

I learned to rebuild the batteries myself.

Cost me $1500 to source ~1 year old modules out of wrecked prius'

lexusisgs

just wondering what will be voltage readout on those battery cells from priusu took

mitsuguy

iTrader: (2)

They are the same modules as the gs450h. 7.6-7.7 nominal.

Voltage isn't all of it though, they need to be tested for capacity also, in which case 6.5ah is considered new.

lexusisgs

how can I test them for capacity ? which method was used for test.?

I have couple from camry 2009 about 7.8 V .
​​​​​​​thanx

mitsuguy

iTrader: (2)

I use this to test charge and discharge amps.

If done outside of the battery pack, you have to clamp the packs between two pieces of wood to prevent the battery from ballooning.

mitsuguy

iTrader: (2)

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Forgot to post the link

cyberm

Hi:

I own a 2012 CT-200 ,same issue as reported here, first time I was told by the dealer that it was a regular battery problem (no the hybrid), they changed it and charged $350. A week after same message comes again, followed by all the lights in the dashboard being lighted and total loss of control of the car (engine, power steering, brakes) not working. Took the car to a dealer again, this time they said that they found a "loose plug" in the hybrid battery.

A week after the second incident same issue happens again, this time while driving on the speedway. I lost control of the car again, check hybrid system message came first followed by all the lights on and complete lost of control of the car. This time the car did not start anymore and I towed it to the dealer.

Issue is that I am now really afraid of driving the car, I felt I was trapped in a killing machine with nothing that I could do .I was lucky that I did not get into an accident: Is this a problem with all the hybrid cars? I had lost engine or brakes before but never all the systems at once.

Any advise will be appreciated.

adamselene

same story, but my first (free ) replacement 55k miles, now 37k mile and 32 months later getting call the dealer, got lame low fuel excuse, happened again ten gallons later, dealer had car for a week and nothing wrong.

Any after market solutions? I would love a Li+ battery, or better yet, a Mr Fusion!