Ryobi Battery Not Charging Blinking Red and Green — What the LED Code Means

Quick answer

• A blinking red and green LED on your Ryobi charger indicates a battery fault.
• Ensure the battery is warm enough to charge; lithium-ion batteries do not charge below 32°F (0°C).
• Check the charger and battery connections for dirt or damage.
• If the battery is swollen or damaged, do not use it; recycle it properly.

Symptoms

When you attempt to charge your Ryobi battery, you may notice the LED on your charger blinking red and green. This pattern typically signals a fault with the battery pack. You might also hear no sounds from the charger, and the battery will not hold a charge when tested in a tool. If the battery is cold, it may refuse to charge altogether due to the battery management system (BMS) locking out charging to prevent damage.

Quick checks

1. Temperature Check: Ensure the battery is above 32°F (0°C). If it’s cold, let it warm up to room temperature.
2. Connection Inspection: Examine the battery terminals and charger contacts for dirt or corrosion. Clean them if necessary.
3. Charger Functionality: Test the charger with another known-good battery to confirm it is functioning properly.
4. Battery Condition: Look for signs of physical damage, such as swelling or corrosion on the battery pack.
5. Compatibility Verification: Ensure you are using a Ryobi 18V ONE+ charger with your 18V battery.

Step-by-step fix

1. Remove the Battery: Always remove the battery from the charger before performing any checks or maintenance to prevent electrical shock or damage.
2. Inspect the Charger: Check the charger model (e.g., Ryobi P118) for any visible damage or faults. If the charger is blinking red fast and yellow, it indicates a pack fault.
3. Clean Connections: Use a soft cloth or brush to clean the battery terminals and charger contacts. This ensures proper electrical connection.
4. Warm the Battery: If the battery is cold, place it in a warm area (not exceeding 100°F) for at least 30 minutes before attempting to charge again.
5. Reinsert the Battery: Place the battery back into the charger and observe the LED behavior. A solid red light indicates charging; a solid green light means fully charged.
6. Test the Battery: After charging, test the battery in a tool. If it still does not work, it may need replacement.

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If it still isn't working

If your battery continues to show a blinking red and green LED after following the steps above, it may be time to escalate the issue. Check if your battery is still under warranty. Ryobi offers a 3-year warranty on its batteries. If eligible, contact Ryobi customer service or visit an authorized service center for assistance. If the battery is damaged, consider recycling it and purchasing a replacement.

FAQ

Why is my Ryobi battery not charging?
A Ryobi battery may not charge due to a fault indicated by a blinking red and green LED. This can result from temperature issues, dirt on contacts, or internal battery damage.

What does a solid red light mean on my Ryobi charger?
A solid red light indicates that the battery is charging. Once fully charged, the light will turn solid green.

Can I use a different charger for my Ryobi battery?
It is recommended to use the specific Ryobi 18V ONE+ charger for your battery. Using an incompatible charger can lead to charging issues or damage.

What should I do if my battery is swollen?
Swollen batteries should never be used. They can be hazardous. Recycle them properly at designated drop-off locations like Home Depot or Lowe's.

How can I prevent my battery from freezing?
Store your Ryobi batteries in a temperature-controlled environment to avoid exposure to extreme cold, which can lead to charging issues.