Steps to Reset an 24V Kobalt Battery
If your Kobalt 24V battery flashes red on the charger, here’s how to fix it:
Jump-Start With a Healthy Kobalt Battery: Match positive and negative terminals for 15 seconds.
Use Another Tool Battery (18–20V): I used Battery from brands like Dewalt 20V tp reset the Kobalt battery in this demo.
Employ a DC Power Supply: Set it to 24V and 1A, and connect the terminals to reset.