Eliminate Short Flight Times, Avoid Brushless Power Sags, and Enjoy Non-Stop Stunt Flights
Operating a high-performance 1:22 scale model like the MF-X7 Phoenix & Dragon Brushless Stunt Aircraft requires steady voltage output to maintain headspeed during 3D aerobatic loops and high-speed rolls. Flying with only a single battery severely restricts your airtime, forcing long waiting periods between charges right when your flying session gets exciting. Aged or over-discharged LiPo cells suffer from internal resistance build-up, causing power sags during full-throttle climbouts that can lead to sudden altitude drops or unexpected gyro resets. Carrying these official 3.7V 800mAh replacement batteries completely solves flight anxiety. Engineered to deliver steady current discharge to the brushless motor, they ensure maximum vertical thrust, preserve flight controller stability, and allow quick battery swaps for back-to-back flying action. Ships worldwide.
Product Highlights
3.7V 800mAh High-Discharge Cell: Delivers optimized current output to power high-RPM brushless motors, enabling punchy throttle acceleration and stable aerobatic performance.
Direct Factory Connector Fit: Pre-wired with the exact power connector required for the MF-X7 receiver board, ensuring seamless plug-and-play installation without wire splicing.
Balanced Weight Distribution: Engineered to match the exact size and weight profile of the original battery compartment, keeping the aircraft's Center of Gravity (CG) perfectly balanced for smooth hovering.
Built-in Overcharge Safety: High-grade lithium cell architecture designed for enhanced charge retention, lower internal resistance, and reliable life cycles.
Compatibility
For the MF-X7 RC Plane only. Full model page (specs & photos):
Inserting into the Aircraft Compartment: Open the battery hatch located under the fuselage of your MF-X7 RC Plane; slide the 3.7V 800mAh battery smoothly into the tray until securely held by the retaining bracket.
Connecting Power Connector: Align the polarity of the battery harness plug with the matching receiver port inside the fuselage; press firmly until fully seated, ensuring the wires stay clear of control linkages.
Gyro Calibration Sequence: Turn on your transmitter first, connect the battery, and immediately place the aircraft on a level surface to let the onboard flight gyro finalize auto-calibration before spin-up.
Charging and Storage Maintenance: Always charge the battery using the official USB balance charging cable; avoid leaving charging batteries unattended, never discharge below 3.3V, and store unused packs at ~3.85V in a fireproof bag.
Spare Parts & Accessories
Find remote control，battery，USB，carcase clips，screwdriversand more in the dedicated parts collection
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