Quick answer
- A flashing red light on a Metabo HPT charger can indicate a fault or a temperature hold. Check the lamp legend in the owner's manual for your charger model.
- Check for overheating. The battery may need to cool down before it can be charged or used.
- Make sure the battery is fully seated in the charger or tool. A poor connection can trigger a fault.
- If the issue persists, consider replacing the battery or consulting customer support.
Symptoms
When your Metabo HPT battery or charger shows a flashing red light, you may see:
- The charger's indicator lamp flashing red. Check the lamp legend in the owner's manual for your charger model.
- The tool failing to run, or running intermittently under load.
- A charger that shows a fault pattern, depending on the specific model.
Quick checks
- Battery connection: make sure the battery is seated in the tool or charger. A loose connection can cause power problems.
- Temperature: check whether the battery feels hot. If so, let it cool for at least 30 minutes before charging or using it.
- Charger function: test the charger with a different battery, if you have one, to rule out the charger.
- Battery age: if it is several years old, it may be nearing the end of its life.
- Visual inspection: look for swelling, damage or corrosion on the case or terminals.
Step-by-step fix
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Remove the battery from the tool or charger before troubleshooting.
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Inspect the connections. Check the battery terminals and the contacts in the tool or charger for dirt or debris. Clean them gently with a dry cloth.
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Let it cool. If the battery feels hot, set it aside somewhere cool and dry for at least 30 minutes. This lets the battery's temperature protection clear.
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Test the charger. If you have another Metabo HPT battery, try it in the charger. If the second battery charges normally, the first one may be faulty.
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Replace the battery. If the steps above do not fix it, replace it with a genuine Metabo HPT pack that is listed for your tool and charger.
If it still isn't working
If the battery or charger keeps flashing red after these steps, check your warranty. Metabo HPT lists lithium-ion batteries under a 2-year limited warranty and chargers under a 1-year limited warranty on its warranty page. If the warranty has expired, consider an authorized service center for diagnosis or a replacement.
FAQ
Why is my Metabo HPT charger flashing red?
The meaning depends on the charger model. See the lamp table in its owner's manual. It can be a fault, a temperature hold, or a connection problem.
How do I know if my battery is defective?
If the light keeps flashing after you confirm the connection and let the battery cool, and a second known-good battery charges fine, the first battery may be defective.
Can I use my tool while the light is flashing red?
Not recommended. Using the tool while a fault is indicated may lead to damage or a safety issue.
What should I do if my charger is not working?
Test it with a different battery. If it still does not work, consider replacing the charger or contacting customer support.