This TSB has the instructions for reading HV battery module date codes: Some additional information from senior members here: To read the date code on the case of the battery (no guarantee that the modules have not been swapped!): Great description and pictures of a new battery pack from Toyota from @3prongpaul : Is there a way to determine if HV battery is the original? Thanks to all the senior members here at PC! EDIT: Special thanks to @dolj for catching error on the graphic (now corrected)
The battery module in the image actually was made 19 Sep 2015; The 4th character is a "Q" not an "O".
Arrrgh! Thanks for spotting that, I’ll see if I can update the picture! Edit: Graphic in post #1 updated to correct year. Thanks @dolj
If it follows the same numbering as Prius modules, then it would be 11 Sep 2016. But I have no idea if it does, but can't think why it wouldn't. Toyota doesn't usually reinvent the wheel, and I imagine the same modules would be used across the whole hybrid range, rather than have special number sequences per model.
Hello, i have a question! newer Cells, say 2018, are not listed in the Table above. I am right, 2018 is Letter "T" I have Cells with Serial "058TAA00852Y" So they made 05 May 2018? THANK YOU!
Hello, OK .... i hope this is true! "After 2015 the letters go sequentially. i.e. R=2016, S=2017, T=2018, U=2019 etc." Greets
Yes, it is. Almost! It is actually 05 Aug 2018 viz a vie: 05 = Day - 05 8 = Month - August T = Year - 2018
can you please help me identify more details regarding this battery? It’s a pack from an 08 Lexus LS600hL
So what do I have? H147NAJ0016A I assume the date is July 14, 2010, but what do the "H" & "J" mean? It says Panasonic on the label with the code, so why is there a "J" where the "B" should be?
Yes, that is correct assuming you're talking about the date code sticker on the outside of the battery. The first character H is supposed to indicate the model of vehicle for which the battery is made, which for a Prius is supposed to be F. But in reality, I have never seen F on a battery S/N only H. The position which has J is supposed to signify the manufacturer of the ECU. I have no idea what manufacturer J indicates.
You may note the picture in post #1 is the end cap of a Gen 1 Prius HV battery. The Gen 1 Prius batteries have an F. Every single one I've ever had my hands on, has been an F. On the other hand, every Gen 2 has an H. Just a little glitch in the decoder, most likely due to the decoder photo being current around the same time a Gen 1 was current.
There is mention of newer and older battery pack serial number decoding and I'm a little confused. Can anyone help with this serial number on my 2006 Prius battery?