Macbook air restarts on boot, battery replacement?

Question

macbook

Good day, tell me how to be in such a situation?
Macbook air 2012, there were problems with the battery, it held the charge badly or even immediately turned off when disconnecting the power supply, yesterday I moved the poppy with charging from room to room, as usual it turned off but when connected to the network, the battery icon appears on the screen is discharged and turns off, sometimes white appears The screen turns on for a few seconds and turns off abruptly, so everything goes in a circle, should it turn on even with a non-working battery?

Answer 1

For hardware problems on Macs, resetting SMC and PRAM can help in some cases.
https://support.apple.com/en-us/HT201295
https://support.apple.com/en-us/HT204063
This is the first thing you'll be asked to do when contacting phone support. If it does not help, then the road to the service is already there.