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The Emax Lightning 30A ESC is designed to deliver exceptional performance in a compact, lightweight form. The page describes a synchronous rectification hardware design with an F396 MCU that supports active braking and firmware upgrades.
It handles 30A continuous and 40A burst with 2S to 4S LiPo batteries, up to 4.35V per cell for high-voltage packs, and has no BEC. It weighs 5.5 g including power and signal wires and is Oneshot enabled and Multishot ready. The page showed low stock (10 left) at Rs 1,289 (SKU RS4768).
F396 MCU: high-performance controller.
30A continuous, 40A burst: for 2S to 4S.
5.5 g including wires: lightweight.
Synchronous rectification: hardware design with active braking.
Firmware upgrade via signal wire: as listed.
Anti-counterfeit authenticity code: as listed.
An electronic speed controller (ESC) converts the throttle signal from the flight controller into the three-phase power that a brushless motor needs. It switches battery current through MOSFETs at high speed, so the motor turns at the speed that the pilot or autopilot asks for. The continuous current rating shows how much current the ESC can carry all the time, and the burst rating shows what it can survive for a few seconds.
Match the ESC to the rest of the power system. The battery cell count must fall inside the listed range, the continuous current must be higher than what your motor and propeller draw at full throttle, and the signal protocol (for example PWM, Oneshot, Multishot or DShot) must be supported by your flight controller. An ESC marked OPTO has no built-in BEC, so the receiver and flight controller need power from another source. An ESC with a BEC can supply a regulated voltage, usually 5V, to small electronics.
Install and test carefully. Solder joints must be clean and strong, the motor wires should be kept short and tidy, and the ESC needs airflow because current makes heat. Calibrate the throttle range if the ESC needs it, check the motor direction with the propellers removed, and never connect a battery with the propellers fitted while you are working on the wiring. Use a battery with a cell count and connector that suit the ESC, and check for a heat problem after a short test hover.
FPV racing
Multirotors
2-4S builds
Weight-sensitive quads
Active braking setups
The ESC has no BEC, so power the receiver and flight controller from elsewhere. The firmware can be upgraded over the signal wire.
The color is black and it carries an anti-counterfeit authenticity code.
MCU: F396
Continuous current: 30A
Burst current: 40A
LiPo: 2S to 4S
BEC: none
Weight: 5.5 g including wires
Color: black
1 x Emax Lightning 30A brushless ESC
Racing pilots who want a light 30A ESC with active braking.
30A continuous and 40A burst.
2S to 4S.
No.
5.5 g including wires.
| Brand | EMAX |
|---|---|
| Burst Current | 40.000000 A |
| Continuous Current | 30.000000 A |
| Weight | 5.500000 g |
| Selling unit | PCS |
