Failed battery, putting gen 3 cells instead of gen 2?

Out of those options, the only one that makes sense is the new battery. For $2200/€1800 installed, go for it if you plan on keeping the car. As you learned with the replacement modules, it is a game of whack-a-mole and another just popped up.

If you were doing a repair that didn't require a core charge you can get a lot more than €100 for the battery you have now. You should have 1 maybe 2 bad modules. Those go for about $10 used. With a proper power supply and some balancing and work on your end you can condition the other say 26 modules and sell them for $20 to $30 all day long. If we take the low end estimates of $540 in recouped battery costs minus 25% for eBay fees, PayPal fees, shipping fees, etc that's $390 or €320.

 

go for the Gen 3 modules!
If you have changed 2 modules, you are able to change them all. Pretty simple!
I replaced my Gen 2-modules with Gen 4-modules. See:
Hybridbatterie: Austausch der Module (P4-Module im P2) – Prius Wiki
Good luck!
Thorsten

 

i vote gen 3 modules if you're comfortable that the age and km are correct. should get a few years out of it.

how long do you plan to keep your car?

 

The 2010 is already 8 years old... These are not new vehicles anymore and that pack is going to fail sooner than later.

 

agreed, that's why remaining ownership is important.

 

Completely different animal, no it won't work.

2015 Gen3 is the latest you can get. And that's why you CANT. Because everyone else that does it for a living scoops them up for rebuilds of 2001-2015 Prius packs.

 

In the Gen 4, there are NiMH modules in the two lowest trims and LI-Ion modules in the all the other trims.

You can use the Gen 4 NiMH, but not the LI-Ion modules for rebuilds of 2001-2015 battery packs. Visually, the Li-Ion look quite different, so you shouldn't mistake them for NiMH.

 

That is true for the US. I do not know what batteries are used for Gen 4 in the Netherlands.

 

Gen 4 in Europe is all with NiMh. Only the P4 PHEV (plug-in hybrid) has LiIon.

The P4 NiMh-Modules look very similar to the Gen 2 or 3.

Datei:Gen4-Module.png – Prius Wiki

 

A couple of people here have built Gen 2 pcks with Gen 4 modules. It is never recommended to mix generations in the same pack.
Toyota says the Gen 4 use a higher quality Nickel in the batteries.

 

Plenty of good advice here already. And maybe a little confusion here and there, which is understandable given how many variations there are.

Gen 3 or Gen 4 NiMh cells work fine. My wife has cells from a 2015 in her 2007. I don't think I would want 2010 cells, though because they are getting too close to the end of their life for the expense and work involved. As previously mentioned, be sure to replace them all.

If I was sure I would keep it for a long, long time, I'd get a new battery. But that's a bit of a gamble what with the possibility of brake accumulator and air conditioner failures when they get this old.

 

So, after reading this entire post thread is it safe to assume you can cross gen 2 and gen 3 cells when doing repairs? I am asking because I was buying used cells from a yard and the guy told me gen 2 and gen 3 are the same or can work for repairs. I didn't see any issues once I did the repair but I'm wondering if this has ever been a bad idea. I'm talking about just gen 2 and gen 3 even though I know everyone has their own opinions. Plan on keeping car for a year before I sell it.

Cars: Gen 2 and Gen 3 prius

Concern: using cells from either of the two generations to do repairs 2004-2015 hybrid battery cells. Is there going to be an issue?

Reason: I want to do repairs on future cars with the same cells. I don't plan on buying new batteries for these cars so please spare me the advice to buy new.

 

The generalisation for the advice is around the fact that modules from a Gen 3 are going to be newer than the modules from a Gen 2.

The concern around that is you don't want to be mixing modules with a higher capacity with modules that have a lower capacity, that is just asking for trouble. Your aim is to match capacity like for like. If your Gen 3 modules match closely with your Gen 2 modules, it will most likely work ok.

 

The most successful and long lasting method would be to replace all the cells at once with a set from a newer battery. As @dolj said, mixing ages can lead to earlier problems down the road. Internal resistances change with time and you want them all to be as nearly equal as reasonably possible.

 

Gen 4 NiMH modules would work too but most of the US models use a Li-Ion battery pack.