How do I confirm my RYOBI OP406 charger is working?

[MacJonathan]

To verify your RYOBI OP406 40V Lithium-Ion Rapid Charger is charging your battery correctly, observe the LED indicator. During charging, the LED flashes, showing the battery is charging. The LED becomes solid green when nearing a full charge. A solid green LED confirms the battery is fully charged. If the LED flashes and indicates an error, check the battery and charger. Remove and reinsert the battery. If the error continues, try another battery. If other batteries charge, the original battery may need replacing. If multiple batteries fail to charge, the charger might need replacement. Following the LED indicators helps you ensure your RYOBI OP406 charger is working properly.