E-flite EFLC3120
E-flite EFLC3120 22.2V LiPo Balancing Charger User Manual
Model: EFLC3120
Introduction
The E-flite EFLC3120 is a 2.5A balancing charger designed for radio control hobby applications. It is specifically engineered to work with 6S 22.2V LiPo batteries. This manual provides essential information for the safe and efficient operation, setup, maintenance, and troubleshooting of your charger.
Safety Information
Failure to follow instructions may result in excessive heat, fire and serious injury.
- Always use the charger in a well-ventilated area.
- Do not cover the charger during operation.
- Ensure proper polarity when connecting batteries.
- Never attempt to charge damaged or swollen batteries.
- Keep out of reach of children.
- Disconnect the charger from the power source when not in use.
What's in the Box
Upon opening the package, verify that all components are present:
- Charger
- Alligator Clips

Image: The E-flite EFLC3120 LiPo Balancing Charger shown with its included alligator clips. The charger is black with white text indicating its model and specifications, and features LED status lights. The alligator clips are red and black, connected by a cable.
Setup
- Power Source Connection: The EFLC3120 charger requires a DC power source (not included) with an input range of 10.8V to 14.5V DC. Connect the charger to a suitable DC power supply using the provided alligator clips or appropriate connector. Ensure correct polarity.
- Battery Compatibility: This charger is designed exclusively for 6S 22.2V LiPo batteries. Do not attempt to charge other battery types or configurations.
- Placement: Place the charger on a stable, non-flammable surface, away from direct sunlight, heat sources, and flammable materials.
Operating Instructions
- Connect Battery: Connect your 6S 22.2V LiPo battery to the charger's main output port and the balance lead to the corresponding balance port. Ensure all connections are secure and correct.
- Charging Process: Once connected, the charger will automatically begin the balancing and charging process. The LED status lights will indicate the status of each cell.
- LED Status Indicators:
LED Status Indication Red Light Charging Green Solid Ready for Charge Yellow Solid Balancing, Charging Red Solid Charge Completed Red Flashing Charge Error (No Load) No Light No Power / Disconnected - Completion: When charging is complete, the LED status lights will indicate "Charge Completed". Disconnect the battery from the charger.
Maintenance
- Cleaning: Regularly clean the charger's exterior with a soft, dry cloth. Do not use solvents or abrasive cleaners.
- Storage: Store the charger in a cool, dry place when not in use. Avoid extreme temperatures and humidity.
- Cable Inspection: Periodically inspect all cables and connectors for signs of wear, damage, or corrosion. Replace damaged components immediately.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger not powering on (No Light) | No power from DC source; faulty connection. | Check DC power source and all connections. Ensure input voltage is within 10.8V - 14.5V. |
| Red Flashing LED | Charge error, no load detected, or battery not properly connected. | Ensure battery is correctly connected to both main and balance ports. Verify battery is a 6S 22.2V LiPo. |
| Battery not charging | Incorrect battery type; damaged battery; poor connection. | Confirm battery is 6S 22.2V LiPo. Inspect battery for damage. Re-seat all connections. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | EFLC3120 |
| Brand | E-flite |
| Product Dimensions | 9.5 x 4.5 x 2.38 inches |
| Item Weight | 12.3 ounces (348.7 grams) |
| Input Voltage | 10.8V - 14.5V DC |
| Output Current | 2.5A |
| Battery Type Compatibility | 6S 22.2V LiPo |
| Color | Black |
| Manufacturer | Horizon Hobby |
Warranty and Support
For warranty information and technical support, please refer to the official E-flite website or contact Horizon Hobby customer service. Keep your purchase receipt as proof of purchase.
You can visit the official E-flite store for more information and products: E-flite Store on Amazon.
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