decoding hv battery pack sn for date

09 . 2 ... U ..
09 Feb 2017

 

Did this battery come from a dealer? If not, I would take the top cover off and make a note of all the serial numbers of the moduels.
The modules should be from Feb 2017 and sequential as well.

 

Hey Friend: I seem to be getting conflicting info on the case SN for the gen 2 Prius. I have a guy selling a battery locally that was allegedly bought in May of 2019. The SN on the steel case is H143WAJ0022A is that legit for a 2019 battery?

 

Send us a pit then we can tell you

 

Here is the pic the guy listed in the add.

 

Looks cheap I would ask the guy if he rebuild the battery first before buying it.

 

You don't really need a pic, the information is right there in the serial number

I wouldn't. If it needs rebuilding, which at that age I hope it doesn't, then you'd be better to do that yourself. At least you will know for sure what exactly was done and that it was done properly.

And now actually answering your question:

14. .3.. W
14 Mar 2019

Before accepting, I would open the battery and check that all modules are original though. You would be checking all serial numbers are sequential and should have a manufacture date around this same time (maybe Feb or Mar 2019).

I hope that helps.

 

On a module:

1. A = 1998
2. B = 1999
3. and so on.

To help me keep date codes straight, I always remember that "L" on a module is 2010, and cases are 2 years older, so an "L" on a case is 2008. You would expect a module manufactured in 2019 to have a U code, and the case to have a W. The modules typically decode to be about 2 months older (or less) than the case date.

If the seller is reluctant to have someone removing the cover, you can probably read a code looking through the opening where the cooling duct normally goes. Newer modules typically don't have the serial numbers in a straight line near the center of the module anymore. They're usually 6 digits in 2 rows and a BX code on the third row, located between the metal rod and the the rubber vent tube, where they're a bit harder to see.

You can see the different serial number locations on the below modules.

 

Thank you, the story I got was that the guy put a brand new battery in his 2007 Prius then it threw a rod a month later. He has the receipt from Toyota but I just want to make totally sure it's legit before I even make an offer. The date codes on the individual modules seem pretty straightforward so I will try and take it from here.

 

So it's the numbers on the far right of the pic you sent? I saw on another thread how to read the date codes on the individual cells but it seems they have moves them around over the years.

 

Yes it did he has a receipt from Toyota. The thing is I would not put it past someone to bait and switch a new case with his old batteries. I guess old age has made me cynical.

 

Trust but verify.

 

Yes, the first number in each row is hidden by the plastic tab. It should be 197PHP, which (197P) decodes to the 19th day July, 2014.

 

I got the battery today and everything was on the level thank you for the help.

 

I was reading through all the HV cooling fan threads and wondered if anyone ever discovered the final "hack" that would allow you to increase the cooling capacity of the fan and could perhaps drop a link? Now that I have a nearly new Toyota battery I want to protect it.

 

When you say increase the cooling capacity of the HV battery fan, are you talking about running the fan at a higher speed than the ECU is setting? If so, it can be done using a ScanGauge, or by using the Torque hack referenced in @SFO's signature, or (I am told) by using Dr. Prius to do the job.

 

Torque Pro you can set the fan setting at 6 which is the highest setting.

Other apps might be able to do a similar thing.

 

Yes, I have the torque app on my android phone but I cant find anywhere to enter codes or the like. I haven't had any codes in relation to the cooling fan but then again I have never actually heard it running and I have no way of checking the battery temps.

The battery I got was bought brand new from Toyota in may of 2019 and had been driven lass than 1k miles before the engine blew. My old pack was from a 2007 Prius and had no known issues but I plan on driving the car on a cross country camping trip and didn't want to take a chance on a pack that old. I just want to get ahead of anything that might damage the new one and want to deal with it while I still have the interior out.

 

I have the torque app maybe it's not the "pro" version because there is no place to enter any code (not that i know how to do that) or make changes.