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Finally found the issue! Hybrid Battery is Bad

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7.2K views 7 replies 6 participants last post by  Kamzu83  
#1 · (Edited)
Alright guys, as you may know I have been having many problems with my hybrid mainly in the summer when it gets really hot. Now also a while back it threw the code P30EF for Internal Resistance and at the time my first Extended warranty had just expired right before the code popped up. Then that made me Go out and buy another extended warranty and then the code disappeared and didn’t come back till a couple of days ago.

Thanks to me using the Nissan Consult 3 I was able to see the code and save it just in case it decides to disappear again. Now fast forward to today the code did disappear but I took a whole three padge print out of the code and of all 96 cells and there readings to Infiniti to let them know that I’m not crazy and the code is there and they finally looked over everything and said, yeah it’s the battery. Thank god we finally found the damn problem is what I said.

Now the warranty company will send out their inspector to take a look at the car and after that it’ll be a while till the battery gets replaced as it’s on back order. Also I was too d the battery is $20,000 which is crazy cause I bought the car back in 2019 for $24,000 clean title with 36,000 miles on the clock. Also the battery only has 17,000 EV miles on it which is very low according to other hybrid owners. Also the car as of now has 104,000 miles on it.
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Discussion starter · #5 ·
The issue with the Q50 battery is the cell design is unique to that model and Infiniti never manufactured them in great enough numbers to leverage economy of scales. So they have an old battery design they need to support for another few years and the tooling/costs/assembly line space/shipping costs drives the total production costs through the roof.

Someone in the forums a few months back found a couple places in the US that can repair and sold refurbished batteries for the Q50 and said it was like $8-10K total.
Agreed, and that was why I wanted to get the battery fixed asap as I always knew something was wrong with it and the hybrid system, and I rather have a brand new oem battery in the car knowing that it can last another 100,000 miles and hopefully more and the performance can be immaculate like when it was first released. Going aftermarket is cool but even $8-10k for a refurbshied battery is a little iffy for my liking but for some forsure sounds reasonable.