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Four flashing red LEDs (MSE 141 C-Q charger issue)

Four flashing red LEDs - Internal issue with the battery

Stihl · Power Tools

What does Four flashing red LEDs (MSE 141 C-Q charger issue) mean?

This indicates an internal problem with the battery itself. The battery may need to be replaced, especially if it is out of warranty.

Common Causes

  • Battery cell failure
  • Damage to the battery's internal electronics
  • Battery pack nearing the end of its lifespan

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the purchase date of the battery to see if it is still under warranty.

  2. 2

    If the battery is faulty, it will need to be replaced with a new compatible battery.

  3. 3

    Ensure the battery is being charged with the correct charger and that the charger is functioning properly.

  4. 4

    Dispose of the old battery responsibly according to local regulations.

Browse all codes in this manual (35)
Verified technical data. Last updated: April 2026

Related Faults

1 glowing red LED1 glowing red LED - Battery too hot or too cold1 glowing red light1 glowing red light — Battery too hot or too cold3 flashing red LED (AK Series)3 flashing red LED - Internal electronic issue (AK Series)
Source: Stihl Power Tools
Open Manual (Page 129)Search more codes in this manual