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EMAX D-SHOT Bullet Series 20A 2-4S BLHELI-S ESC

About EMAX D-SHOT Bullet Series 20A 2-4S BLHELI_S ESC:

The brand-new Bullet Series is the ultimate super-mini and ultra-lightweight ESC engineered specifically for high-level FPV racing. Despite being the lightest and smallest ESC on the market, it delivers heavy-duty performance. Powered by the latest BLHeli-S firmware, it utilizes hardware PWM to generate a cleaner signal, resulting in significantly smoother throttle response and quieter operation. Built with premium, imported components and a rugged new aluminum heatsink, this ESC is designed to survive intense racing conditions while pushing your drone to its absolute limits.

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Top highlights
  • Weighs only 3.5g, making it one of the smallest and lightest single ESCs designed specifically for high-level FPV racing.
  • Fully compatible with digital DSHOT signals, as well as analog MULTISHOT, ONESHOT42, and ONESHOT125 protocols.
  • Utilizes hardware PWM via BLHeli_S (16.5) to generate ultra-smooth, low-noise throttle responses during intense flights.
  • Features a sleek protective heat sink that drastically drops core temperatures and shields against prop strikes.
  • Engineered with 3oz high-TG PCB, high-quality MOSFETs, and Japanese ceramic capacitors to maximize efficiency and minimize heat.
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Bullet Points

● The market’s smallest and lightest ESC, specifically engineered to save weight and space on high-level FPV racing builds

●  Running the latest BLHeli-S firmware, it seamlessly supports cutting-edge digital signals like DSHOT, as well as analog protocols including MULTISHOT, ONESHOT42, and ONESHOT125.

● Hardware-driven PWM generates ultra-smooth throttle response, sharper control, and dramatically reduced electrical noise.

● The newly designed aluminum heatsink effectively drops core temperatures while providing robust physical protection against destructive propeller strikes.

●  Built with top-quality imported MOS tubes, Japanese ceramic capacitors, and a 3oz High-TG PCB board to drastically reduce heat soak and maximize overall system efficiency.

● Features high-temperature silicone signal cables that offer maximum flexibility for clean wiring and hassle-free soldering.

ItemContinuous CurrentBurst CurrentLi-xx Battery(cell)Dimension L×W (mm)Weight (g) W/O wiresBEC
DSHOT BULLET 6A ESC6A10A2S9.4×21.52.1NO
DSHOT BULLET 12A ESC12A15A2S-4S11.0×15.02.4NO
DSHOT BULLET 15A ESC15A25A2S-4S11.9×19.63.5NO
DSHOT BULLET 20A ESC20A30A2S-4S11.9×19.63.5NO
DSHOT BULLET 30A ESC30A35A2S-4S11.9×19.63.9NO
BULLET 35A ESC35A40A3S-6S14.4×29.06.3NO

EMAX Bullet 20A ESC Buying Guide

The EMAX Bullet 20A is a compact and lightweight single ESC designed for 2–4S FPV racing drones. At only 3.5g without wires, it is a practical choice when keeping the electronics small and light is a priority.

Is the Bullet 20A Right for Your Build?

With a 20A continuous current rating and 30A burst rating, the Bullet 20A is best suited to lightweight racing and smaller FPV builds where the motor's current demand stays within the ESC's limits. It supports 2–4S LiPo and works with DSHOT, MULTISHOT, ONESHOT42, and ONESHOT125 signal protocols.

SpecificationWhat It Means
Voltage2–4S LiPo
Continuous Current20A
Burst Current30A
Weight3.5g without wires
BECNo

What to Check Before Buying

  • Motor current: Make sure your motor's maximum current stays within the 20A continuous / 30A burst rating.

  • Battery voltage: Use only a 2–4S LiPo power system.

  • Power supply: This ESC has no BEC, so your flight controller and other electronics need a separate suitable power source.

  • Weight: The 3.5g weight makes it particularly useful for lightweight racing builds where every gram matters.

Bottom line: Choose the EMAX Bullet 20A when you need a small, lightweight 2–4S single ESC for a racing or compact FPV build. For higher-current motors or larger 4S builds, choose an ESC with more current headroom.

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