Error 4xxx/1/40000000 after voltage drop

Hello there. I have a problem with the power reports of my macbook pro.

Two days ago my street suffered a voltage drop, and during two hours the electric staff were running and falling constantly.

My macbook was charging and I didn't noticed that, so it was receiving these voltages changes. When I noticed about that my battery was 98% charged, I disconnected the battery adaptor, and the macbook switched off automatically,and now I have the same problem each time I try it. From that the macbook only starts when has the battery adaptor connected, so it doesn't work as a portable anymore. On the battery state says REPLACE NOW. I tried all ways, as switch on pressing D before grey screen starts, or take off the battery and place it again. I used the Apple hardware test and it said Error 4xxx/1/40000000 so I Think the battery is dead.

I know that my battery has already a lot of load cycles, but it was working perfectly until this moment. I also know that others neighbours had suffered problems in other electric staff at the same time, so I would like to know if could be possible that this Error would be produced by the voltage drop? And , Coould I get a report about the moment when the battery failed?

Thank you so much for your attention.

Andrea.