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Marc Thomas Jr.Jul 26, 2025
What to do if LED 1 is red and LED 2 is off on Hilti C 4/12-50 Battery Charger?
- SScott WilliamsJul 26, 2025
If the LED 1 is red and LED 2 is off on your Hilti Battery Charger, it indicates a charger malfunction. Try unplugging the charger and then plugging it back in. If the LED still doesn't light up, the charger should be taken to Hilti Service for repair.