| LED Status | Meaning | Action Required | | :--- | :--- | :--- | | | Standby – Connected to AC power, but no battery detected or clamps not attached. | Connect clamps to a battery. | | Flashing Green (Slow) | Charging – Bulk charge mode. Battery is below 80% capacity. | None – normal operation. | | Solid Green (Steady) | Full charge & Maintain mode – Battery is at 100%. Charger is now monitoring and topping off as needed. | None – leave connected indefinitely. | | Flashing Red | Error – Reverse polarity, short circuit, or bad connection. | Disconnect AC. Check clamp polarity and corrosion. Reconnect. | | Solid Red | Internal fault or battery voltage too low to detect (below 3V). | Try a manual charger to bring voltage to >5V, then retry AutoCraft. |
| LED Status | Meaning | Action Required | | :--- | :--- | :--- | | | Standby – Connected to AC power, but no battery detected or clamps not attached. | Connect clamps to a battery. | | Flashing Green (Slow) | Charging – Bulk charge mode. Battery is below 80% capacity. | None – normal operation. | | Solid Green (Steady) | Full charge & Maintain mode – Battery is at 100%. Charger is now monitoring and topping off as needed. | None – leave connected indefinitely. | | Flashing Red | Error – Reverse polarity, short circuit, or bad connection. | Disconnect AC. Check clamp polarity and corrosion. Reconnect. | | Solid Red | Internal fault or battery voltage too low to detect (below 3V). | Try a manual charger to bring voltage to >5V, then retry AutoCraft. |