Big problem- hybrid issue please help

So I was just driving and all the sudden I get the, check hybrid system pull the car over in a safe place immediately with the master alarm light. Thankfully I was still able to drive my car home which was about 3 miles away. It definitely sounded like it was lugging to get me there. I turned the car off and on a couple times in my driveway and the car sounded weaker and weaker. One major thing is the gas engine never turns off, it will just sit there idling and will never switch over to EV mode. It did this about a week ago for about a half an hour when I was running around town but once I turned the car off and on it went back to normal.
Even out in the driveway right now it’ll show 5-6 battery bars but will just idle in engine mode.

seems like a clear indication that it’s my hybrid battery right? I replaced the battery two years ago with this used one and it has about 160,000 miles on it, which seems pretty low however it came out of a 2012 and with batteries who knows. And please let me know what you think is going on Before I pay a shop to run a diagnostic.

 

I don’t have an android will this be a problem with this dr Prius app? I just downloaded the app on my iPhone just fine.
What’s the typical price of one of those obd2 readers Bc I’m seeing different amounts

 

Something like this?

 

I went to Napa and used their reader and this is what showed, pretty broad right. A buddy of mine who works on Prius’s said one of his friends had a similar problem and it was an inverter converter issue… What do you guys think.
Battery itself came out of a 2012 with around 90k. Went into my car 2 years ago and now the battery has 160k miles. I’m just trying to find out what the heck is the problem so I can fix it right away

 

I’m driving on the freeway now to my buddies place who has an extra hybrid battery and parts to fix the inverter, we’ll see what the problem is but I just noticed I cannot use my cruise control, doesn’t even give me the option to. What does that indicate the problem is?

 

It is a 2012 Prius C. We replace the inverter converter but didn’t really know if we fixed the problem considering we unplugged the battery which cleared the codes. Well, today It did the exact same thing and now the check hybrid system and master alarm are both on… It literally will just stay in gas engine mode, be sluggish when taking off from a stop, and when you let your foot off the gas it revs really high before dying back down.

So it’s got to be the hybrid battery right… I would think so. Crazy because it only has around 160,000 miles, it itself came out of a 2012 Prius before it got put in my car two years ago. My buddy has a hybrid battery that came out of a 13 C with only 58,000 miles so we’ll give that a whirl. You guys think the battery for sure now that it’s not the inverter?

 

No we just put in a different inverter, it was pretty easy.