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["20250716first","am32","burst","Drone_FCESC Amp-70A","Drone_FCESC Amp-Does not apply","Drone_FCESC Function-FPV Racing","halo","hdzero","voltage"]
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HDZero Halo 4‑in‑1 70A ESC AM32
HDZero Halo 4in1 70A ESC (AM32)
The Halo 4‑in‑1 70A ESC .
This ESC is available in both AM32 and BLHeli_32 firmware . The conformal-coated build provides protection from moisture, dust, and corrosion, enhancing field reliability .
Compact yet durable, the ESC measures approximately 33 × 43 mm 20×20 mm mounting layout 13.4 g . It supports telemetry, common input protocols like DShot and OneShot, and features dual-sided motor pads for layout flexibility .
Whether building a 4-inch freestyle drone or a 7-inch long-range rig, the Halo 4‑in‑1 70A ESC
Rigorously tested, view the white paper detailing HALO ESC's performance : https://youtu.be/oLena6vl9Vk
Key Features:
Engineered by HDZero – leaders in high-performance FPV technology
Built for maximum performance and durability in race and freestyle drones
Split-board design with copper bus bar for improved burst throttle response
8-layer PCB with 3oz copper per layer for superior thermal and current handling
24 MOSFETS (6 per motor)
Continuous 70A per motor / 100A burst (3 seconds)
Clean power delivery minimizes voltage spikes and reduces failure risks
Supports 3S to 8S batteries (9V – 40V input)
Telemetry support
Firmware options: BLHeli32 or AM32
Conformal coating for moisture, dust, and corrosion protection
Dual-sided solder pads for flexible installation
20x20mm mounting pattern, 33x43mm size, 13.4g weight
Specifications
Model
HDZero Halo 4in1 70A ESC
CPU
AT32F421 (120MHz)
Firmware
- BLHeli 32.10
- AM32 2.18
Target: HDZ_ESC_1R0_F421
Input Voltage
DC 9V – 40V (3S – 8S)
Telemetry
Supported
Input signal
Dshot 150/300/600/1200, MultiShot, OneShot
Output Voltage
VBAT (to power the FC)
Max Current
Over 70Ax4 (Continuous) / 100Ax4 (Burst)
Current Sensor
Scale = 400, offset = 0
Dual-sided solder pads
YES
Dimensions
33x43mm
Mounting
20x20mm, Φ4mm for 3mm Rubber Grommets
Weight
13.4g
