QIDI-550 Battery 7.4V 550mAh 2S LiPo for 6CH 3D Stunt RC Airplane

Eliminate Flight Time Limits, Prevent Brushless Motor Sags, and Fuel Continuous 3D Stunts

Performing high-energy aerobatics, 6CH inverted loops, and 3D hovering with the QIDI-550 RC airplane requires sustained, high-discharge power from your battery pack. Relying on a single battery severely limits your flying sessions, forcing you to stop right as you settle into a flight rhythm. Older or over-discharged LiPo cells suffer from sudden voltage drops under heavy throttle, which can cause the brushless motor to stutter, trigger emergency low-voltage cutoffs, or cause loss of stabilization control during critical stunt maneuvers. Stocking up on these official 7.4V 550mAh 2S replacement LiPo batteries completely eliminates field power anxiety. Engineered to deliver steady current discharge, they keep your brushless motor operating at peak thrust, maintain stable power to the flight gyro, and allow effortless battery swaps for extended field practice.  Ships worldwide.

Product Highlights

• Optimized 7.4V 2S High-Discharge Chemistry: Built with premium lithium polymer cells (NW 801334P 7.4V 550mAh 4.07Wh to deliver maximum punch for vertical climbs and 3D hover recovery.

• Factory-Standard JST Power & Balance Plugs: Pre-wired with a red JST discharge plug for direct connection to the ESC and a standard white 3-pin XH balance connector for safe charging.

• Precision Weight & Form Factor: Designed to fit perfectly within the QIDI-550 fuselage battery compartment without adding excess nose weight, preserving optimal Center of Gravity (CG) balance.

• Consistent Voltage Stability: Maintains a stable voltage output curve under brushless motor loads, preventing sudden flight controller rebooting or premature low-voltage warnings.

Compatibility

For the QIDI-550 3D Stunt RC Airplane only.
Full model page (specs & photos):
https://kadstoylover.com/en-us/products/qidi-550-3d-stunt-rc-airplane

What’s in the Box

• 1 *QIDI-550 Battery (7.4V 550mAh 2S LiPo)

Install Tips

• Inserting into the Aircraft Bay: Open the battery compartment hatch under the fuselage of your QIDI-550; gently slide the silver 7.4V 550mAh cell into the battery tray until secured by the retention strap.

• Connecting Power and Balance Leads: Firmly press the red JST power plug into the matching ESC receptacle inside the fuselage; tuck the white 3-pin balance cable neatly to the side so it does not snag on control linkages or outer hinges.

• Pre-Flight Gyro Self-Check: Seal the canopy latch and place the airplane on a level surface; connect the battery with your transmitter turned on, allowing the 6CH gyro and one-key hover board to complete auto-calibration before takeoff.

• Charging Safety and Storage Maintenance: Always charge this 2S battery using a compatible 2S LiPo balance charger via the white 3-pin lead; never leave charging cells unattended, avoid discharging below 3.3V per cell, and keep unused packs at storage charge (~3.8V per cell) in a fire-resistant safety bag.

Support & Warranty

• 3-month warranty on manufacturing defects
• Ships worldwide