Hi friends, My hybrid battery is dead (along the years I've replaced dome cells and balanced them by own). I've found someone that cells complete pack. I'm trying to understand if there is a way to know the manufacture date by the sheetmetal serial. At least to get some idea before validating on the cell itself. Any help will be appreciated. Attaching the serial image.
Sells a complete pack of what refutbed modules . That won't have anything to do with the QR code or the sticker on that battery because what's inside case is no longer original .! Now if he saying their new then that code on label should have some mfg info I'd think. Original batteries to the cars didn't have QR or this info stamps on them . Later units did . And I thought mfgr date is contained in that info tag .
Thanks Tom! So do you belive that since this pack has qr code on it, it might indeed be newer than original? (off corse I'll have to verify the date on cells) Trying to avoid unnecessary drive in advance (seller mentioned tjis is ~3 years pack, as he knows. He is car dealer)
The serial numbers on each module need to be in numerical order with same date of manufacture if you want to be certain your pack will last as long as possible:
Oh you want to open up the pack and inspect module by module oh holy Christ no I ain't going through all that not at all.. my cars have new batteries because I put them in there I don't need to check and wheni buy a car I know the battery is going to be enrouye out duh obviously why do you think they're getting rid of the car. Or all the brake codes are up that's aboutit for the cars other than reg ice and trans .
Yea... But how are you going to know if you won the Prius Lottery? As in sometimes you can buy a used Prius and pull the pack and go through module numbers a realize they're in sequential order (meaning brand new) and then realize date of manufacture is not as old as the car but that car got a brand new battery just a few years before you bought it. That's a winning lottery moment right there!
There are MANY OEM HV batteries that are not 100% sequential and can even have date codes a day or two or even more apart. All that does is verify the battery modules are likely 100% original. It does nothing to verify condition of the modules. How does that have any impact on "lasting as long as possible"? The metal case serial number date code should be within about 3 months after the date code on the modules to account for supply chain assembly to assume it's the original case for those modules. Do you realize the diagram you posted was a Toyota notice for techs on how to inspect a HV battery (that was being returned/replaced) in order to verify it was original and untouched for warranty or core fees? The Toyota notice even says the modules should be within 3 months date code. I can take 7 modules with 4 different years of manufacture and build a battery that will last >5 years as long as the modules are relatively equal capacity >5800 mah.
No, I think it's more likely that battery case is #0562 assembled on 6/13/2008. So it's either a completely original 2008 battery or it's been rebuilt and had some modules replaced. Then the questions becomes whether the voltage sensor harness was replaced with new, what is the condition the ECU pins where the harness plugs in, and how well were the capacities of the 28 modules matched? It is VERY common for these pins to have corrosion and it's very common for original harnesses to be reused, even though they are typically corroded and likely to start providing intermittent voltage signals resulting in the battery throwing a code. A well matched set of 28 modules will perform much better than 28 randoms. Found this in an older thread to help you visualize. It's close enough: You'll notice the 5 digits directly prior to the YY is the last 5 of the battery model number. as for this: Trying to avoid unnecessary drive in advance (seller mentioned tjis is ~3 years pack, as he knows. He is car dealer) Car dealers don't know nearly as much as they want you to think they know. He's already lying to you.
