Supports: PX4 / ArduPilot / DroneCAN (UAVCAN) / Modbus / Smart Charger Protocols
Designed for industrial drone battery systems, this high-voltage smart UAV BMS supports 96S-270S packs and 400A high-current relay control. It uses a 1-master and 8-slave architecture for voltage, current and temperature acquisition, relay adhesion detection, communication interaction, optimized power supply, heating, electrical isolation and comprehensive battery management.
For modular UAV battery systems
For high-power industrial drones
Helps maintain power under heavy flight demand
CAN 2.0B and isolated UART for UAV BMS projects




270S 1000V eVTOL BMS battery management system | Relay Control, Heating, Insulation Monitoring | Ayaatech battery management for electric aircraft
This 1000V 400A eVTOL high-voltage BMS is built for demanding industrial battery systems and urban air mobility packs operating near 1000V. With 192 or more single-cell voltage acquisition channels, dual-channel 0-350A current sensing and 16 temperature inputs covering -40 degC to 300 degC, the system provides the measurement precision and fault tolerance required by heavy-lift UAVs, eVTOL platforms, industrial AGVs and large-format energy storage packs.
Four independent relay outputs rated at 24V with 3A peak current include coil-adhesion detection for robust contactor control, while isolated RS485 Modbus and CAN communication support integration with host controllers and EV-standard charging equipment.
| Cell voltage acquisition: | >=192 channels |
| Single-cell voltage window: | 0-5V |
| Single-cell voltage precision: | <=20mV error, <=10mV resolution |
| Total system voltage window: | 0-450V |
| Total voltage precision: | <=5V error, <=1V resolution |
| Current measurement: | Dual-channel, 0-350A |
| Current measurement accuracy: | <=3%, <=1A resolution |
| Temperature acquisition: | 16 PT1000 sensors |
| Temperature measurement window: | -40 degC to 300 degC |
| Temperature measurement accuracy: | <=5%, >=1 degC resolution |
| Relay output control: | 4-channel, 24V control, 3A peak |
| Relay adhesion detection: | 4-channel (2 main contactor + 2 pre-charge) |
| Supply voltage input: | 12V-36V DC |
| Steady-state power draw: | <=15W |
| Electrical isolation: | Acquisition and data bus fully isolated |
| SOC estimation accuracy: | <=5% |


EF-003 System Architecture


Supports demanding industrial UAV power profiles with stable relay-control performance.


Configurable protection strategies help reduce risk across voltage, current and temperature faults.


Supports integration with UAVCAN, SkyRC, HIYING, host controllers and custom project systems.


Flexible customization for pack configuration, interfaces, firmware parameters and relay-control logic.
Battery Industry Experience
Projects Supported
Global Markets
ADC acquisition modules and peripheral circuits are verified against Ayaatech 192S BMS precision requirements for high-voltage drones and energy-storage battery systems.
| Category | Parameter item | Specification value |
|---|---|---|
| Cell voltage | Measurement error | <= 20mV |
| Measurement resolution | <= 10mV | |
| Measurement range | 0 – 5V per cell | |
| Total voltage | Measurement error | <= 5V |
| Measurement resolution | <= 1V | |
| System voltage range | 0 – 450V | |
| Current sensing | Measurement accuracy | <= 3% |
| Measurement resolution | <= 1A | |
| Measurement range | 0 – 350A | |
| Temperature sensing | Measurement accuracy | <= 5% |
| Measurement resolution | >= 1 degC | |
| Measurement range | -40 degC to +300 degC | |
| Sensor type | PT1000 RTD | |
| SOC | Estimation error | <= 5% |
Review the logic, hardware and system architecture behind the industrial high-voltage UAV BMS.
The design focuses on stable acquisition, isolated communication and reliable relay-control operation.






Watch the embedded YouTube test video for industrial drone BMS operation and project references: Ayaatech channel.
Ayaatech software tools support intelligent BMS monitoring, parameter configuration and diagnostic workflows. The interface provides battery information, parameter setting, calibration and utility functions for project commissioning and maintenance.
Built for high-voltage reliability, safe relay control and industrial UAV battery management
Tracks pack temperature across multiple sensing points for precise thermal visibility and protection decisions.
Communicates through isolated RS485 Modbus with configurable device ID and project-specific host integration.
Supports CAN and UART communication with isolation for stable data exchange in high-voltage UAV systems.
Enables wireless battery-status review and diagnostic access through the mobile app when BLE is configured.
Supports cold-climate lithium packs with two or more heating channels powered by a 250V-450V bus, warming batteries from -20 degC to above 0 degC within 30 minutes and maintaining standby temperature at 7 degC or higher.
Provides configurable protection for cell overvoltage, undervoltage, charge and discharge overcurrent, short circuit, temperature faults, reverse polarity and charging abnormalities, with real-time fault telemetry.
Continuously checks insulation resistance between high-voltage circuits and chassis ground, triggering alarms and protective actions when resistance drops below threshold. Acquisition circuits are isolated from the data bus to reduce ground-loop risk and improve communication stability.
Supports SOC estimation within 5%, SOH tracking, EV-standard intelligent charging, passive balancing and event logging for discharge capacity, charge cycles and abnormal pack conditions.
High-voltage battery management for industrial drone and aerial mobility platforms
Stable high-voltage battery management for complex industrial flight operations.
Continuous battery control for long-duration field missions and high-load spraying platforms.
Reliable energy delivery for high-load transport and takeoff conditions.
Consistent battery telemetry and protection for precision inspection tasks.
Reliable power supervision for high-risk and time-sensitive aerial operations.
Advanced battery control for unmanned intelligent flight systems and eVTOL platforms.
Field-proven BMS performance for heavy-lift UAVs, industrial inspection platforms and demanding operating environments.
A professional agricultural UAV platform required high-current battery management for long-duration spraying missions under heavy payload conditions.
After integrating the drone battery management system, the UAV maintained stable voltage output, reduced sudden power drops and delivered consistent performance during critical operations.
An industrial inspection drone operating at high altitude needed reliable battery management to maintain stable performance in extreme conditions.
The drone BMS supported reliable UAVCAN communication and delivered consistent power output throughout the mission.
High-performance smart BMS solutions for energy storage, EVs, robotics, and drones.
✔ High Efficiency & Active Balancing
✔ Smart Monitoring & Protection
✔ Global Certifications
✔ Customizable for Any Application
⚡ Engineers respond within 12 hours
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