Overview
The EMAX BLHeli 30A OPTO ESC is a BLHeli firmware brushless electronic speed controller designed for multirotors, and compatible with fixed-wing aircraft and helicopters. It uses authentic electronic components to ensure high quality and enhance the current endurance ability of the ESC, with optimized performance for great linearity and quicker throttle response.
For product support, configuration questions, or compatibility checks, contact https://rcdrone.top/ or support@rcdrone.top.
Key Features
- Based on BLHeli firmware, optimized for high performance with great linearity and much quicker throttle response
- Rotation direction of the motor is programmable: normal, reverse or bidirectional
- All parameters can be programmed via using a program card or a transmitter, including default settings
- Multiple protection features including low-voltage cut-off protection / over-heat protection / throttle signal loss protection
- Alarm to help you find the devices: keep the throttle on FULL OFF position for a while, the ESC will beep
- Throttle range can be configured and is fully compatible with all receivers, providing smooth, linear and precise throttle response
Specifications
| Model | BLHeli-30A-OPTO |
| Continuous current | 30A |
| Burst current (10S) | 40A |
| Li-xx battery (cell) | 2-6 |
| Dimension (L×W×H) | 67×26×10 mm |
| Weight (wires included) | 25 g |
| BEC output | (not listed) |
| Programmable | YES |
| Label text | LiPo NO BEC 2S-6S |
Applications
- Multirotors
- Fixed-wing aircraft
- Helicopters
Details

BLHeli firmware tuning and built-in protection features are summarized alongside key specs for the 30A OPTO ESC.
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