Elios 3 Battery Troubleshooting
Before starting any troubleshooting, we recommend reviewing our Battery Best Practices article to ensure proper handling, storage, and usage, as many battery issues can be prevented by following these guidelines.
Common Battery LED colors and their meaning
Red (Solid or Blinking)
This often occurs when the battery has been deeply discharged (voltage below 18V) or when the cells are heavily imbalanced. In most cases, these batteries cannot be recovered and must be replaced.
Yellow (Solid or Blinking)
Possible causes include charging outside the temperature range, temporary cell imbalance, or overcurrent protection. In most cases the warning state is recoverable. Temperature - Action to take: Bring the battery back to room temperature (10°C–40°C). Charging will not start while the LED remains yellow.
Cell imbalance - Action to take: Perform one complete charge and discharge cycle. This may rebalance the cells and clear the warning.
Blue (Blinking)
The battery is in Storage Mode and is discharging to around 50% for safe storage.
Magenta (Blinking)
The battery is in Transport Mode and is discharging to around 30% to comply with air-travel regulations.
Action to take for Blue/Magenta leds:
Press and hold the battery button for two seconds to open the menu.
Press and hold again to exit the mode.
Led multicolor (rainbow)
Users report that batteries cycling through colors (Red, Green, Blue) or flashing all colors accompanied by beeping are usually unresponsive and unable to hold or accept a charg, battery is permanently damaged and cannot be recovered Action to take: If the battery is within the warranty period (1 year or 50 cycles for Elios 3), it is typically replaced; otherwise, it must be recycled.
Troubleshooting Common Battery Problems
Battery Won't Charge / No LEDs:
Causes:
Improper Storage Leaving a battery in the drone (even turned off) or plugged into a charger for days will slowly drain it below recovery level. If the battery is completely unresponsive, it is no longer safe to use and must be replaced.
Deep Discharge Over Time Long-term zero-charge storage causes permanent chemical damage.
Age & Number of Cycles The expected lifespan is approximately 12 months or 50 cycles. After this, internal resistance increases and voltage drops during flight become more common (+ error messages in cockpit)
How to avoid this?
After using the drone, remove the battery and recharge it if needed. If no flights are planned, place the battery in storage mode.
When batteries are not in use, perform 1 charging cycle every 3 months
Consider replacing batteries that have reached the end of their lifespan.
Charger-related Troubleshooting
Charger LED stays green when connecting the battery (and battery is not full)
Possible reasons:
The battery is too hot or too cold. Allow it to reach room temperature before retrying.
The battery is permanently damaged (red LED). Contact Flyability Support.
Charger or Cable Damage
Do not use a charger with:
Cracked casing
Damaged connector
Pinched or exposed cable
Replace the charger before attempting to charge a battery.
Critical Battery Cases
Unusual Battery Behavior
If the battery:
Gets unusually hot
Emits smell or noise
Shows swelling Keep it away from other batteries and heat sources, and contact Support.
Battery Exposure to Moisture or Liquids
Do not use or charge the battery. Dispose of it safely or reach out to Support.
Battery was involved in an aircraft incident that caused damage to the battery, its connector, or its casing
Never use or charge the battery and reach out for Flyability support.
Contact Flyability Support
If you need to contact support, please ensure you provide all relevant information about the faulty battery.(see this article) Disclaimer: Even when all recommended best practices are respected, other factors may still cause battery issues. Natural wear, environmental conditions, or unexpected hardware faults can impact battery performance over time. If any problems persist despite proper handling, please contact Flyability Support for further assistance.
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