Lithium or sodium for replacement

yes. Not a single nimh, lithium or sodium aftermarket battery lasts much more than 2 years but costs close to a 10-15 year oem. End of story.

 

So you've tried them all?

 

RJP, I bought a well done, rebuilt , NiMh battery for my 2004 Prius ($1600) in 2012. It was still working well at 288k miles when I opted for a new 2016 Prius. You are being a bit pessimistic.

JeffD

 

I said aftermarket. Yes mix and match used oem can be better than aftermarket.

 

Not sure which Team Jack member I'm responding to, but does it even matter?

Yes, but we can only use 1/3 of the overall pack capacity with the OEM BSU, due to the much larger voltage range over SoC.
I made a video on this.

Are you referring to current? If so, that's not what my data shows.
I made a video on this.

In my testing, I was barely able to charge just 1 Wh (yes one watt hour, not kWh) into a below freezing pack.
I made a video on this.

I made numerous videos highlighting numerous issues with sodium in NiMH cars.

In my testing the NexPower sodium cells were substantially worse when charging/discharging at high current.
I made a video on this.

In my testing, the NexPower sodium cells were the worst performing cell I've ever tested. I had to abort my test after just QTY3 cycles due to cell overheating. The glue – I mean 'thermal paste' – adhering these cells together was literally melting.
I made a video on this.

I don't have test data because the cell overheated too quickly. I could test at a lower C, but it would take forever. Also, my test results wouldn't be comparable to all the other cells I've tested (which all undergo the same abusive long term test currents).

Please let me know the model number and I will verify this claim. I've tested three different sodium cells and they just can't handle this much current without quickly overheating. Lithium cells have substantially lower impedance.

Also note that you'll get at most 3.5 Ah out of these cells in an OEM NiMH Prius, due to sodium's wide voltage range across SoC.
I made a video on this.

 

This guy mudder still here bashing other products while trying to push his?

Had to post since some think I hacked into another account but thats nonsense.

I work full time and have a life with a family.


Stay ahead of the curve and drive into the future, leave the old behind...

 

Hackers never die!!!

 

This guy mudder prefers "providing technical evaluation of poorly designed products..."

As of this writing I don't sell a competing product.
Not trying to push my product, but rather I'm trying to help educate people so they don't waste their money on shoddy products.
Since we last spoke, Jack has discontinued yet another product (V3 sodium)... so maybe I'm onto something? Can't wait to see what NexPower V4 beholds! Who knows, maybe it'll be Leyden jars? Whatever it is, I will review it.

Same, except I'm retired.