0ho 0 PROII is a 4 in ESC of high performance 5 demanding racing events with selected materials, reasonable PCB layout and advanced technics for stable ad swift operation under strong current EXPLOSIVE FAST PROMINENT THRU RESPONSE RELIABILITY .

The selected materials, featuring high-quality MOSFET technology, enable efficient operation at 4 ohms (Ω) while maintaining an impressively low resistance dynamic spread (RDS) value of only 0.85 milliohms (mΩ). This results in reduced ESC heat generation and increased safety factor.

Features a high-frequency PWM capability of up to 96 kHz, with a minimum support of 16 kHz, ensuring a silky-smooth flight experience.

With its advanced TG PCB material and optimized circuit design, this ESC can handle currents of up to 55A per channel. Additionally, real-time current data is available for monitoring purposes.

The ISA Shield Heat-Absorbing (SbH) technology, combined with 32-bit intelligent ESCs, features advanced cooling fins that enhance the heat dissipation performance and extend the lifespan of the electric speed control module by up to 4%. The metal design contributes to its high thermal conductivity.

27 damping design holes are provided on the ESCs to safeguard the sensing components and flight controller (FC) from damage.

The BLHeli_32 firmware represents the third generation of the BLheli code, which supports input pulses with widths ranging from regular 1ms to Oneshot125 (125-250μs), Oneshot417 (41.7-83.3μs), or Multishot (5-25μs).

Specifications: F55A PROⅡ 32-bit 4-in-1 LED ESC for FPV motors in RC racing drones. Key features include: * Model: F55A PROⅡ * Current: up to 6S (54A) peak current, with a BEC (Battery Eliminator Circuit) capable of handling LiPo batteries * Weight: approximately 17.5 grams * Size: 45mm x 41mm x 7.3mm (mounting hole dimensions: 30.5mm x 30.5mm) Note: The interface definition is not specified, but it likely refers to the ESC's communication protocol or programming interface.

The battery voltage should be connected to the Battery Voltage Monitoring port on the flight controller. The amperage reading is displayed in millivolts per ampere (15.2mV/A). Additionally, the startup power refers to the maximum power allowed during the startup stage, which can range from 0.03 to 1.5 volts.

De-magnetization compensation is intended to prevent motor stalling caused by prolonged exposure to wire demagnetization. If the motor's timing information is unavailable, the direction of rotation will be estimated based on the motor's characteristics.

8. Incorrect parameter settings when in RC Off mode will lead to invalid settings, increasing the risk of motor failure or ESC damage. 13. Low Voltage Protection: This feature allows you to set the low voltage warning threshold between 2.5V and 4.0V per LiPo cell, protecting your battery from over-discharge.

Upon detecting the initial sequence of sounds, it will be indicated that the minimum throttle has been successfully recognized. For safety reasons, please ensure you have removed the propellers before proceeding with throttle calibration.

Please note that welding may be required for this product. If so, we recommend using welding equipment with equivalent power to avoid damaging the components. Additionally, never leave the rotor locked when the ESCs are in operation, as this can cause fatal damage. In case you encounter any issues or have concerns, please reach out to our authorized distributors or contact T-MOTOR directly for assistance.