A strange voice I haven't heard before

Hello, I have a pejo 206 1.4 hdi, I have been in the car for two years, a voice has occurred in the car for two days, I have heard it for the first time. sound is coming, the car is running and it does not show any malfunction on the screen, and I am happy if the friends who know that the malfunction lamp does not light up thanks meanwhile, the sound is like an electronic sound computer warning sound

https://www.youtube.com/watch?v=curv2dzsyyo

if the sound is from the battery it means it is weakened, the battery likes hot air, the acne must be strong in winter

The battery completes its life, teacher ...

Unfortunately the battery is running low, and my battery is weak, and every time I start it sounds, unfortunately :)

Exactly, my brother, thank you. There is nothing to do. Then we will buy the battery.

Thank you all be there all of you

72amp battery is not a replacement
That's why 60 amps will flow, room pearl battery 115TL or something

http://i1075.photobucket.com/albums/w436/alifuattasova/mobile%20uploads/ımag1301_zpsl*gt57sk.jpg