adding a second HV Battery

um.. more range? do you have a PIP? just curious how you will be updating the amperage? not to sound rude, but it sounds like this is your first time working with HV batteries, am I correct?

 

Why did you start 3 different posts when there's so many threads on here that already answer your question?

 

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The thing is.. those are two different models of Prius, they are not the same... is your Prius a plugin? if so.. if yours is a plugin and his was not, his batteries wont work in your vehicle.

 

But I want my own thread and be in the spot light!

 

That second video was a bit interesting (skipped the first). He says and shows a Toyota Avalon HV battery being installed as his "second" battery. Pretty sure the Avalon has the same battery as the Camry, which is a 34 module battery. So he has a 244v nominal battery connected in parallel with the OEM 202 volt battery. If so, this guy has no clue what he's doing and is driving around with a pretty much depleted "second battery".

I didn't really catch if both batteries are on line at the same time or not, maybe they're not, but either way....Sketchy AF, at a minimum.......fire waiting to happen?

There's a lot of quality work in that trunk.....

 

or you could just put larger capacity cells in...

https://black.jmyntrn.com/2023/09/16/prius-plug-in-hv-battery-upgraded-to-8-8kwh/

 

Or you can buy a whole $50,000 prime instead!!!

Bro, he said the batteries he is getting is from his friend. Dont think he wants to spend money on new cells.

OP, this is a good idea because it does double up the amps and thus accumulates more charge.

 

It's been a while since I've driven a PiP, so can anyone tell me what the MID says at 4:19 of the Prius Plug-in + = tesla video? And if anyone has a PiP and DrPrius what is your voltage range?

 

Since this is the gen 3 non plug in forum, 5000vac

 

I wonder if the op has finished his project…

 

@Grit thanks, 5000vac, very helpful

 

I've been looking for a non PIP Prius to purchase and used to test theories. Personally, I don't think having additional battery capacity will improve anything on a non PIP Prius. I do plan on testing the impact on a non PIP when using a PIP battery. That would be IMO the most ideal implementation of additional batteries for a non PIP.

 

this is a great thread for armchair theorizing

 

Absolutely! Armchair theorizing can indeed be a starting point for progress. Without brainstorming and exploring different ideas, it's tough to move forward effectively. It's wild to think that it's been over a decade and the exploration into getting more out of the Prius hasn't seen much traction. Sometimes it takes just one bold step or innovative idea to break through and open up new possibilities. Theory is great, but action propels us forward!