G2 50A ZTW Beatles 2S-4S ESC SBEC VTOL UAV Electronic Speed Controller
The ZTW Beatles G2 50A ESC tops the 2-4S Beatles G2 line, built for larger sport-scale planes and higher-power 3D aircraft. Same 37g housing and 14-gauge wiring as the 40A, but with 65A burst current for extra headroom.
Product Overview: ZTW Beatles G2 50A 2-4S SBEC G2
ZTW Beatles G2 50A 2-4S SBEC ESC for UAV, VTOL and Fixed-Wing Aircraft
Top of the 2-4S Beatles G2 Line
The 50A model is the highest-current option in the 2-4S Beatles G2 range before stepping up to the 2-6S 60A model — a natural choice for pilots running larger sport-scale or 3D fixed-wing aircraft that need more continuous power without moving to a heavier battery platform.
50A Continuous / 65A Burst Current
With extra current headroom over the 40A, this ESC handles bigger motors and props more comfortably during sustained climbs, giving pilots confidence during extended full-throttle 3D sequences or scale aerobatic routines.
Matched 14-Gauge Wiring in a Compact Frame
Housed in the same 68×25×10mm, 37g footprint as the 40A, the 50A keeps the same compact build while handling more current — a useful upgrade path for pilots who want more power without redesigning their airframe's ESC bay.
SMR Reverse Thrust for Controlled Landings
Supports the same dynamic motor-direction switching as the rest of the G2 lineup, allowing reverse-thrust braking on landing to shorten rollout — especially useful on larger, faster sport-scale models that need more runway.
Adjustable SBEC for Larger Servo Loads
The 5V/6V adjustable SBEC supplies up to 4A, enough to power several standard-size digital servos on bigger fixed-wing airframes without needing a separate UBEC.
Multiple Programming Options
Configure throttle curve, brake force, cutoff voltage, and SMR behavior via transmitter stick, ZTW LCD Program Card G2, or the Bluetooth Module app — the same flexible programming shared across the entire Beatles G2 series.
Built-In Protection for Higher-Power Flying
Low-voltage cutoff, over-temperature protection, start-up protection, phase-loss detection, and signal-loss protection all come standard, giving pilots confidence when pushing larger motors closer to their rated limits.
Technical Specifications
| Specifications | Beatles 20A SBEC G2 | Beatles 30A SBEC G2 | Beatles 40A SBEC G2 | Beatles 50A SBEC G2 | Beatles 60A SBEC G2 | Beatles 80A SBEC G2 | Beatles 100A SBEC G2 | Beatles 120A SBEC G2 |
|---|---|---|---|---|---|---|---|---|
| Continuous Current | 20A | 30A | 40A | 50A | 60A | 80A | 100A | 120A |
| Burst Current | 30A | 40A | 55A | 65A | 80A | 100A | 120A | 140A |
| Input Voltage | 2-4S LiPo / 5-12 NC | 2-4S LiPo / 5-12 NC | 2-4S LiPo / 5-12 NC | 2-4S LiPo / 5-12 NC | 2-6S LiPo / 5-18 NC | 4-6S LiPo / 12-18 NC | 4-6S LiPo / 12-18 NC | 4-6S LiPo / 12-18 NC |
| BEC Output | 5.0/6.0V Adj. / 4A | 5.0/6.0V Adj. / 4A | 5.0/6.0V Adj. / 4A | 5.0/6.0V Adj. / 4A | 5.0/6.0V Adj. / 8A | 5.0/6.0V Adj. / 8A | 5.0/6.0V Adj. / 8A | 5.0/6.0V Adj. / 8A |
| Programming | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 | Tx / LCD Card G2 |
| Firmware Upgrade | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported | Not Supported |
| Power Wire | 18AWG | 16AWG | 14AWG | 14AWG | 14AWG | 12AWG | 10AWG | 10AWG |
| Motor Wire | 18AWG | 16AWG | 14AWG | 14AWG | 14AWG | 12AWG | 12AWG | 12AWG |
| Battery Plug | XT60 (Amass) | XT60 (Amass) | XT60 (Amass) | XT60 (Amass) | XT60 (Amass) | XT90 (Amass) | XT90 (Amass) | XT90 (Amass) |
| Motor Bullet | 3.5mm | 3.5mm | 3.5mm | 3.5mm | 3.5mm | 4.0mm | 4.0mm | 4.0mm |
| Size (L×W×H) | 60.0×27.0×9.0mm | 60.0×27.0×9.0mm | 68.0×27.0×9.0mm | 68.0×27.0×9.0mm | 70.0×35.0×12.0mm | 90.0×39.0×13.0mm | 90.0×39.0×13.0mm | 90.0×39.0×13.0mm |
| Weight | 26g | 31g | 39g | 39g | 58g | 92g | 98g | 98g |
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