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The EMAX D-SHOT Bullet Series 30A ESC is described as the next evolution in FPV speed controllers, with a new purple design. The page calls it the lightest and smallest ESC in the market for high-level FPV racing.
It runs the latest BLHeli-S (v16.5) firmware with hardware PWM for a smoother throttle response and supports DShot, Multishot and Oneshot42. The page lists 30A continuous and 35A burst current and a 2-4S range. It showed in stock at Rs 2,199 (SKU RS4907).
30A continuous, 35A burst: for 2-4S LiPo.
New heatsink design: reduces core temperature and protects from prop strikes.
BLHeli-S v16.5 firmware: with hardware PWM.
DShot, Multishot and Oneshot42: supported protocols.
3.9 g weight: as listed in the title.
Quality components: MOSFETs, ceramic capacitors and a 3oz high TG PCB.
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
2-4S builds
Weight-sensitive quads
BLHeli_S setups
DShot builds
The ESC has a new heatsink design that helps reduce core temperature and protects from propeller strikes. The page gives no BEC, so it is not a BEC ESC.
The title lists a weight of 3.9 g.
Item type: electronic speed controller
Continuous current: 30A
Burst current: 35A
Cells (LiPo): 2-4S
Firmware: BLHeli-S v16.5
Protocols: DShot, Multishot, Oneshot42
Weight: 3.9 g (title)
1 x Emax Bullet Series 30A ESC (BLHeli_S)
Racing pilots who want a light 30A BLHeli_S ESC.
30A continuous and 35A burst.
2-4S.
BLHeli-S v16.5.
DShot, Multishot and Oneshot42.
| Brand | EMAX |
|---|---|
| Battery Compatibility | 2-4S LiPo |
| Burst Current | 35.000000 A |
| Continuous Current | 30.000000 A |
| Firmware | BLHeli-S (v16.5) |
| Supported Protocols | DShot, MULTISHOT, ONESHOT42 |
| Weight | 3.900000 g |
| Selling unit | PCS |
