Hybrid battery - how bout just changing bad cells without "reconditioning"?

the professionals are the ones that are bad. The ones doing as a Hobby, a true hobby and not for profit, will do a much better job than most "pros".

And Toyota did have their own rebuilt batteries, it was discussed here many years ago. They no longer do it now, but they tried to do it, most likely for warranty reasons.

 

From Post 14.... Any company that remanufacturers these batteries (other than Toyota themselves at one point), will not have the quality control to have consistently good product. Their job is just to put modules back together and sell them back out, fast turnover is the key to their business model.

PC, allow me to help here. Toyota DID offer a remanufactured HV battery for Gen 2 for a very short period (I'm not sure about other Gens). That is what is being referred to when he wrote "at one point".

because they profit off of any possible excuse to sell the customer a brand new pack
Take it easy with the conspiracy thoughts...they tried it and didn't like the success rate. You think they want to deal with pissed off customers who are upset because a rebuilt battery didn't last 5-10 years? Because that is exactly what happens. When people go to a dealer for repairs, they expect to be able to drive the car forever without that problem. A reman battery pack isn't going to do that, and it didn't take Toyota very long to realize it. Joe Blow gets a rebuilt pack installed by third party? They're a bit more realistic with expectations. Once you put the Toyota name on the bill? Realistic expectations go out the window. The ONLY way to meet those expectations is with a new battery. That's also why they'll tell you a new ecu is required if they see even a bit of corrosion on the pins. They're covering their axx.

 

Panasonic manufactured batteries for Toyota until 2009. Since 2010, Primearth has been the manufacturer. Until 2012, the weight remained the same, 1,040 grams. Sometime, in 2012 (I think in the second half of the year) Primearth started manufacturing batteries with a weight of 1000 grams. In 2015, they began to manufacture modules in a new housing for 2016 cars. It's all about factory-installed batteries. The batteries sold by Toyota have a different story. The 2016 battery may be built with modules in the old housing. The batteries sold by Toyota differs by multiple stickers on the steel cover.

 

Can you post the serial numbers of those modules? Photos? I've seen thousands of these modules and never had any with the threaded insert on the negative side. The Gen 1 has them on both sides, but I've never seen (-). I've heard of these modules being used in applications other than automobile HV batteries. I wonder if these (-) term inserts are from one of those alternate uses? Maybe a sly way of IDing them. I know Dorman has used Gen 1 modules in some of their Gen 2 rebuilds, so it wouldn't be a total surprise if they had alternate sources of modules.

 

Thanks!! This has really caught my interest! They are directly on top of the modules. Typically near the center, newer gens have the serial number positioned where it would be under the black metal bars on top. Just to make it more fun to read I guess.
It should be white lettering, but sometimes they're a bit faded. Most cell phone cameras can make even the most faded numbers show up if you find the right angle.