Rainbow Prius Hybrid Powered by Lithium!

If you need a 150Ah battery, you use a 150Ah battery.

The original (Toyota) cells were 6500mAh or 6.5Ah. the original (jacktheripper) LiFePO4 cells were also rated at 6500mAh. To say they are no good is well, just silly...

REVVL V+ 5G ?

 

Yeah lets hope this thread stays on topic and doesn't get pulled off topic again, even though I enjoyed @T1 Terry info, since it fits my hybrid project more closely. Sorry for my part in taking this thread offtopic.

 

If the tech specs are way off then the product and company are a scam. One way to see if something is a scam is to see if anyone compains about it or if major companies are using them.

LiFePO4 can used for be EV and Hybrid grade batteries. Tesla uses them. All of China is enamoured wth them for their EV tech. Many people have chose them for their EV projects over the years, including for racing purposes and model aircraft. Why? Because of their pros and cons. Pros are they are cheaper and tend to last longer than Li-ion. The cons are that they can't be made to discharge as quickly as a the most high end lithium ion batteries, but can come realatively close, and that they are slightly less energy dense than Li-ion in general.

 

My bad, I'd didn't read it correctly as you say.
Still trying to figure which line on the graph is voltage and which on is current. The values up each side of the graph are blurred on the link I found, do you have a graph with clearer values on each side that can be easily read?

T1 Terry

 

Any news on when the lithium pack will be back in stock for the Prius 3?

 

I have this pack for my 3rd gen. Nothing wrong yet. MPG has been 40-46mpg. I'm accounting for the incline/declines I go through around here in Tx

 

Version 1.0 or 1.5???

REVVL V+ 5G ?

 

1.0

I know nothing about 1.5. seeing as how the website is sold out on everything it must've been a good sale. I'm still waiting on any bad reviews to see what went wrong.

 

Thanks!

I signed up on their website for their newsletter and got one dated October 31, 2021 states they were being shipped to orders placed starting the "previous few weeks". Serial starting with "S" and label stating 7.0 Ah rating on the blades.

Excited to hear from anyone that has one...

REVVL V+ 5G ?

 

I was looking into this battery option but it looks like there hasn't been any packs available for a long time. Anyone know if/when these are going to be available?

 

I have helped with testing these packs and have affiliate link to help sell: https://projectlithium.com/?ref=9qLPw

Currently all packs are out of stock and there's one last shipment that was stuck in a port in China during the Covid lock down that arrives in the US in a few weeks.

After that it will be always in stock starting in November. The factory is finally back up and running and that's how long it will take for the next shipment to arrive. Hopefully Covid and supply chain issues won't interfere much by then.

 

Anything new you're working on?

 

Hi everyone I could use some help with my situation I didn’t want to thread highjack and made my own thread but it does have to do with the project lithium and using LTO instead as well as other questions about what I am trying to do and I know for fact someone On this thread knows my answer and possibly @jacktheripper prob would really know the answer more than anyone if he’s the one who does project lithium.

3rd gen Prius inverter question hybrid battery power draw and LIFEPO4 & LTO | PriusChat

 

There's also @T1 Terry who's trying to get LTO to work as a NiMH alternative:

HV Battery Headway 38120HP LiFePo4 70S pack | Page 6 | PriusChat

 

I've not read all pages anyway there is no battery available right? I only have on question: how long this kind of battery last?
But, I don't think cells used here are from Ningde Era or CATL, I tend to think they are from a factory in China with about no more than three years life time. I hope I am wrong as I expect a useable battery.
China does make very good batteries and use lifepo4 batteries in their buses, Tesla seems also uses them for cars sold in China. But, most batteries made by China - not by the largest a few Japan or Korea factories - have doubtful life span.
Outside the factory, there is little technologies involved in the batteries sold by individual or family members in USA. The landlord here made lots of effort for this project and no doubt a good effort, yet his main job is in sales, a little in mechanic I guess.
Lifepo4 is sth US gave up - China acquired A123, they cannot compete with Japan/Korea for Li-ion, that why they concentrate on Lifepo4 and li-poly. Don't think it can go ahead in front of the whole world, if it seems to be, it would be short life one. Most of them are low tech.
If one have 10K+ cells, not difficult to pickup matched cells for hybrid car battery and use of 80%+ cells, the problem is still: how long they can last, how many miles or how many years?
Forget the protection/temp control/balance etc, you can reuse existing system for Lifepo4, 14blade each of 5 in series, max cell volt is about 3.5 so maxV=14*5*3.5=245V just like Ni-Mn, Usually Ni-Mn Vmin=0.9V so 168*0.9=151.2V, 151.2/5/14=2.16V, the Vmin for Lifepo4 cell is a bit low and might cause (recoverable?) damage, so, keep you new battery not over discharged.

Anybody can correct/comment?

 

Maybe you just found one of the older thread while Jack was still developing the product.
There lots more info about the developments here at PC on youtube and from the distributors and installers.
https://projectlithium.com/

 

Your perspective does not reflect the history of battery chemistry. Each improvement in chemistry over the decades has extended lifespan and performance. It's false to suggest that LiFePo4 that was developed with far more cycles/longevity, as well as more safety is somehow short-lived and inferior based on your opinions about each country who have worked with this technology.

Your notion of China, the primary manufacture of most all your electronic equipment somehow being inferior in every instance is false. Do you really think all Apple products are bad because they're made in China? Sorry, there's far more nuance here. And while it is true that some businesses in China ignore patents and licensing and sell inferior knock off products without quality control and testing, that's the exact opposite of what has happened in the 8 year journey that has led to this battery pack being available and reliable.

 

It is easy to sterotype these days.

I don't know if we have enough data to prove that a good set of LiFePO4 cells last longer or shorter than NiMH cells in a Prius. But I haven't heard any thing bad about them yet.

 

The average life of the lifepo4 that rainbow lithium sell is good for 10 years, same as ni mh stock. Seller said so himself.