Need guidance on diagnosing Hybrid Battery

The "Check Hybrid System" warning came on a while ago, and since then I have been looking around to see how to confirm whether it is the hybrid battery before I commit to buying one. I have an OBD II scanner that I have used to reset the DTC(warning came back). I have also managed to get techstream running with a mini vci but I have no clue how to use it to diagnose the battery.
Side note, the MAF sensor code came on at the same time, I don't suppose that is related to the hybrid warning?
Codes: P0A80(hybrid system), and P010A(MAF sensor)

I would appreciate any knowledgable advice on how to proceed in troubleshooting.
Thanks!

 

Thank you very much Raytheeagle. I have cleaned the MAF sensor (and reset DTC) but it still gave me the code. Since then I've purchased a new MAF sensor, I'll see if that fixes it. The reason I asked if they were related is that both codes trip at the same time, but I guess thats because they were reset at the same time?

As for techstream, what version should I be using? It seems that the 13.00.022 one I got is missing some features(or they're hidden?). Things like "health check", "monitor", and, "configuration" don't appear to be where some videos/screenshots indicate they are.

 

Coming back a month later... I have since decided its time to buy a new battery: I had too much trouble with the techstream software I was using; I then decided to use the Dr. Prius app to do a life expectancy test (score was 29.73% capacity and block 10 seemed weak). The end of my battery life was confirmed when the engine had trouble starting and shook voilently after being parked in 90F+ heat.

Now the question comes down to what to buy. I thought it would be useful to share what I've found:

Bumble Bee Batteries:
"BeeLine" Rebuilt - $1050 + $235 ship
"BeeMax" New OEM 6.5Ah(standard perfomance option) 1yr warranty $1949 + $235 ship

Greebean (lifetime warranty):
Rebuilt $1649

GreentecAuto(currently has a sale):
Rebuilt 1yr warranty $1000
New cells OEM 4yr warranty unlimited mile - $1850.00
If mobile install +$350 (for TX)

Newpriusbatteries (self install cells):
new non-OEM 2yr 25k mi warranty $1600

After searching through all of this it seems that the best option would be a new OEM from Greentec. Second to that would be Greenbean which has changed their 5yr warranty to a lifetime warranty. Does anyone have any expirience with their batteries (particularly in hot climates)?

As for the MAF problem, my new MAF sensor didn't do the trick; I'll be doing some of the recomended maintenence mentioned in other threads for the EGR and intake manifold.

 

I think you are fine. Of course, I'm just another Prius owner with no actual expertise on the subject, so take my opinion with a grain of salt. My Prius has almost 150,000 mi. I live in Texas and the hot climate may be a large factor as to why my battery died relatively soon. %83 doesn't sound bad. As I understand it, the battery has 2x the capacity it needs so it can last longer as the capacity goes down. Of course, I don't know if Dr. Prius measures total capacity available, or capacity available vs capacity needed.