Chosen Solution
Macbook was working perfectly fine and backup was also good but after the restart it started showing battery condition to “Replace Now“, What might be the problem? Do i need to replace the battery?
Let’s check the MagSafe connector on the charger and the system making sure both are in good working order. Reference this Apple T/N Apple Portables: Troubleshooting MagSafe adapters just to be safe. I would also check the I/O Board, review this guide MacBook Air 13" Early 2015 I/O Board Replacement Take it out and inspect the other side for corrosion. If these look good then I fear your logic board charging MOSFET logic has failed.
We’re you able to use the Mac off the charger before? That is showing results as if your battery is completely dead