Overview
BrotherHobby Returner 3-6S 8Bit BLHeli_S 55A (4-in-1) ESC V1 is a 4-channel electronic speed controller for multirotor power systems. It uses second-generation BLHeli_S native firmware and supports DSHOT 300/600 digital throttle for fast response and strong anti-interference performance.
Key Features
- Second-generation BLHeli_S native firmware; supports DSHOT 300/600
- 6-layer PCB design with 2OZ copper thickness
- 8-bit main control chip with 6288 driver chip
- TVS transient suppression diode
- 1500uF/35V high-frequency low-resistance filtering capacitor
- Imported SMT filter capacitors
- 24 high-power MOSFET design
- Current detector / current meter support
- Independent solder pads for easier wiring
Specifications
| Product | 3-6S 8Bit 55A (4IN1) ESC V1 |
| Target firmware | 3-6S 8Bit 55A (4IN1) ESC V1_REV16.7 |
| Continuous current | 55A*4 |
| Max Current | 60A(10S) |
| TVS | Yes |
| External capacitor | 1500uF/35V high frequency low resistance capacitor |
| ESC protocol | DSHOT 300/600 |
| Input Power | 3S-6S |
| Output voltage | VBAT |
| Current meter | Yes |
| Mounting pattern | 30.5x30.5mm (hole diameter 4mm) |
| Dimensions | 50mmx44mmx6mm |
| Weight | 13.1g |
Interface Definition
- GND: Ground wire is the negative pole of the power supply
- VCC: Battery voltage detection signal output interface; connect to flight controller battery voltage detection port; output specification is battery voltage
- M1: Throttle signal input, corresponding to No.1 ESC
- M2: Throttle signal input, corresponding to No.2 ESC
- M3: Throttle signal input, corresponding to No.3 ESC
- M4: Throttle signal input, corresponding to No.4 ESC
- CUR: Current detection signal output interface; connect to flight controller current detection port
- NC: No defined pins, no input/output
What’s Included
- 3-6S 8Bit 55A (4IN1) ESC V1 electronic speed controller x1
- M3*8mm silicone case x5
- XT60 power line x1
- SH 1.0mm 8pin 15mm flat cable x1
- 1500uF/35V high frequency low resistance capacitor x1
For wiring guidance or compatibility questions, contact support at https://rcdrone.top/ or email support@rcdrone.top.
Details

The BrotherHobby Returner V1 4-in-1 ESC is labeled for 3–6S input and 55A output with an 8-bit BLHeli_S setup for digital throttle protocols like DShot.

The 6-layer PCB with 2oz copper thickness is built to improve current handling for high-power drone electronics.

The Returner 55A 4-in-1 ESC uses an 8-bit main control chip paired with a 6288 driver chip for stable operation.

The Returner 4-in-1 ESC uses a TVS transient suppression diode and a 1500uF/35V high-frequency filtering capacitor to help smooth supply voltage and reduce high-frequency noise.

The BrotherHobby Returner 55A 4-in-1 ESC uses SMT filter capacitors and a current detector to help deliver cleaner, more stable power.

The BrotherHobby Returner 4-in-1 ESC uses a 24‑MOSFET layout in a compact board design for clean quad builds.

The built-in current detector supports setting a current limit to help protect motors from overload during hard throttle changes.

BrotherHobby Returner 55A 4-in-1 ESC V1 uses clearly labeled motor pads plus GND, battery voltage, ESC signal and current pads for straightforward wiring.

The 3–6S 55A 4-in-1 ESC V1 lists DSHOT300/600 support, 30.5×30.5mm mounting, and a labeled connector pinout for wiring.
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