CODES P0A94 and P0A7A QUESTION

I was entering the freeway the other day and as soon as i stepped on the gas to speed up i felt a hipcup/pop sound,all dash warning came on and lost power right then but had the engine running. I exited off and pulled over, turn off the car, then restarted it. All the warning lights were still on and the engine came on so i pretty much slowly limped home a few miles away. This NEW Hybrid Battery was Recently installed and everything was working fine till i hit the gas that day. I noticed that on any street that i had to go up the engine would really rev up and if i let off some on the gas it would calm down. Anyway i'm thinking those codes are telling me its a burnt out (for some reason) Inverter/Converter Unit. I tried to erase the codes but they just came right back on.
Anyone have this happen too? I'm not sure whats going on if its a issue with connections at the new battery then i can take it back to the shop BUT my worry is upselling and or saying whatever to make money off me as it goes. I like to know more about what i might be dealing with. If it happens to be the unit itself then i will replace it myself and of course be very safe about it. Anyway... Thanks in advance guys.

 

please elaborate. Under warranty extension? NEVER MIND, I JUST SAW WHAT YOU WERE REFERING TO. THANKS!