EF-007
12S 44.4 V 120A Smart UAV BMS for LiPo Battery Packs
Surveying & Mapping Drone Power Line Inspection Drone Polar Expedition Drone
EF-007 Smart BMS Highlights:
- Constant working current: 120A
- Over Discharge Current alarm,no protection:Customized BMS solution
- Integrated drone BMS semi conductor and communication module for real-time monitoring of battery level, temperature, and other data. Managed via an app for charge and discharge control, plug-and-play design
Product Introduction
Compact size and light weight EF-007 smart BMS supports 12S 44.4V lithium battery packs and handles 120A continuous charge and discharge current, making it ideal for high-power UAV and industrial drone applications. It features isolated RS485, UART, and CAN communication interfaces, along with four battery temperature probes and one MOS temperature probe for real-time thermal monitoring. Standard functions include passive balancing, heating, switch control, pre-discharge, and history storage. A built-in Bluetooth module enables convenient wireless monitoring and parameter configuration.
| EF-007 12S 120A Smart UAV BMS — Compatible Battery Packs | |
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12S1P 44.4V 22000mAh Smart UAV Battery 25C
12S1P 44.4V 30000mAh LiPo UAV Battery 25C
High Voltage Semi-Solid 12S1P 44.4V 24500mAh UAV Battery
Semi-Solid 12S1P 44.4V 26000mAh UAV Battery
Semi-Solid 12S1P 44.4V 31000mAh UAV Battery
Semi-Solid 12S1P 44.4V 35000mAh UAV Battery
High Voltage Semi-Solid 12S1P 44.4V 41000mAh UAV Battery
Semi-Solid 12S1P 44.4V 45000mAh UAV Battery
High Voltage Semi-Solid 12S1P 44.4V 55000mAh UAV Battery
High Voltage Semi-Solid 12S1P 44.4V 67000mAh UAV Battery
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| Inspection & Mapping Drone / Surveillance & Patrol Drone / Training Drone / Light Route Mission UAV | |
| Key Features | |
| 12S lithium and semi-solid battery pack support | Battery status (Normal / Warning / Fault); HMI |
| Real-time individual cell monitoring | Battery historical data query |
| Real-time individual cell monitoring | Battery self-heating function |
| Dual overvoltage protection (cell + pack); undervoltage protection (cell + pack) | Voltage tolerance ≤ ±5mV |
| Overcurrent protection; short circuit protection; reverse charge protection | Temperature error ≤ ±2°C |
| Intelligent dynamic balancing | Power calculation error ≤ ±5% |
Engineering Capabilities
High-Current UAV Applications
Designed for UAV battery packs with demanding discharge profiles. Continuous and peak-current ratings are specified according to the selected hardware configuration.
Configurable Protection Strategy
Configurable monitoring and protection thresholds for cell voltage, pack current and temperature conditions.
Communication Integration
Supports isolated CAN, isolated RS485 and DroneCAN integration, with project-specific protocol configuration available.
OEM / ODM Engineering Support
Customisation support for series configuration, interfaces, firmware parameters, charger communication and battery-pack integration.
EF-007 Technical FAQ
Q:Which battery packs and UAV applications is the EF-007 designed for?
Q: What continuous current does the EF-007 support?
Q: Which communication interfaces are available?
Q: What monitoring and protection functions are included?
Q: How does temperature monitoring and battery heating work?
Q: Can the battery be monitored and configured from a PC or mobile device?
Industry Experience
Clients Served
Countries Covered
Technical Specifications
12S Lithium Battery Management System - Protection & Heating Parameters
1. Current Protection Parameter
| Category | Parameter | Min / Threshold 1 | Typical / Threshold 2 | Max / Threshold 3 | Unit | Release / Note |
|---|---|---|---|---|---|---|
| Over Charge Current Protection | Over-Current Charge Protection | 170 | 180 | 190 | A | — |
| Over-Current Charge Protection Delay Time | 2000 | 3000 | 4000 | mS | — | |
| Over-Current Charge Protection Release | Delay 30S self-recovery; after 3 times, remove charger to restore | - | — | |||
| Over Discharge Current Protection | 1st Level Over-Current Protection Current | 170 | 180 | 190 | A | Warning only, no protection |
| 1st Level Over-Current Protection Delay Time | 2000 | 3000 | 4000 | mS | — | |
| 2nd Level Over-Current Protection Current | 450 | 500 | 550 | A | Warning only, no protection | |
| 2nd Level Over-Current Protection Delay Time | 110 | 160 | 210 | mS | — | |
| Over-Current Discharge Protection Release | Delay 30S self-recovery; after 3 times, remove load to restore | - | — | |||
2. Cell Temperature Protection Parameter
| Category | Parameter | Min / Threshold 1 | Typical / Threshold 2 | Max / Threshold 3 | Unit | Note |
|---|---|---|---|---|---|---|
| Charging Temperature Protection | Charging High Temperature Protection | 62 | 65 | 68 | °C | — |
| Charging High Temperature Protection Release | 52 | 55 | 58 | °C | — | |
| Charging Low Temperature Protection | -8 | -5 | -2 | °C | — | |
| Charging Low Temperature Protection Release | -3 | 0 | 3 | °C | — | |
| Discharging Temperature Protection | Discharging High Temperature Protection | 67 | 70 | 73 | °C | Warning only, no protection |
| Discharging High Temperature Protection Release | 57 | 60 | 63 | °C | — | |
| Discharging Low Temperature Protection | -23 | -20 | -17 | °C | Warning only, no protection | |
| Discharging Low Temperature Protection Release | -18 | -15 | -12 | °C | — |
3. Total Voltage Protection Parameter
| Category | Parameter | Min / Threshold 1 | Typical / Threshold 2 | Max / Threshold 3 | Unit | Note |
|---|---|---|---|---|---|---|
| Total Voltage Overcharge Protection | Overall Overcharge Protection Voltage | 4.17 × 12 | 4.20 × 12 | 4.22 × 12 | V | — |
| Overall Overcharge Protection Delay | 2000 | 3000 | 4000 | mS | — | |
| Overall Overcharge Protection Release Voltage | 4.08 × 12 | 4.10 × 12 | 4.12 × 12 | V | — | |
| Total Voltage Over-Discharge Protection | Overall Over-Discharge Protection Voltage | 2.77 × 12 | 2.80 × 12 | 2.82 × 12 | V | Warning only, no protection |
| Overall Over-Discharge Protection Delay | 2000 | 3000 | 4000 | mS | — | |
| Overall Over-Discharge Protection Release Voltage | 3.18 × 12 | 3.20 × 12 | 3.22 × 12 | V | — |
4. Heating Management
| Category | Parameter | Min / Threshold 1 | Typical / Threshold 2 | Max / Threshold 3 | Unit | Note |
|---|---|---|---|---|---|---|
| Heating Management | Heating Opening Temperature | -5 | 0 | 5 | °C | — |
| Heating Stop Temperature | 10 | 15 | 20 | °C | — | |
| Heating Current | ≤ 10 | A | — | |||
| Type of Heating | Heating By Charge | - | — | |||
| Generated from BMS technical specification data. Values are presented as Min / Typical / Max unless otherwise noted. | ||||||
PC & Mobile Diagnostic Tools
AYAA provides PC and mobile tools specifically for the EF-007 smart BMS for industrial UAV battery packs. Users can monitor battery status, view fault information, configure protection parameters, and perform calibration tasks.
Depending on the selected hardware configuration, PC tools support CAN 2.0B communication and optional RS485 interfaces. Mobile apps (iOS and Android BLE) are optional and provide wireless monitoring and diagnostic access.
Key Features
Smart battery management for 12S 44.4V UAV battery packs with 120A continuous current, real-time monitoring, heating control, and communication integration.
12S 44.4V LiPo Battery Support
Designed for 12S lithium polymer and compatible semi-solid UAV battery packs used in inspection, mapping, patrol, training, and industrial drone applications.
120A Continuous Charge and Discharge
Supports 120A continuous charge and discharge current, suitable for high-power UAV platforms with demanding flight-load requirements.
CAN, UART, RS485 and Bluetooth Communication
Provides CAN, isolated UART, RS485, and Bluetooth communication for battery-status monitoring, parameter configuration, diagnostics, and UAV system integration.
Real-Time Cell and Pack Monitoring
Monitors individual cell voltage, pack status, temperature, SOC, and operating data to support stable UAV battery management.
Multi-Point Temperature Monitoring
Equipped with four battery temperature probes and one MOS temperature probe for real-time thermal monitoring of the battery pack and power components.
Battery Heating Control
Supports charge-powered battery heating for low-temperature UAV operation, with configurable heating activation and stop-temperature settings.
Configurable Protection Strategy
Supports over-charge, over-discharge, over-current, short-circuit, reverse-charge, and temperature protection, with parameters configurable for project-specific battery packs.
Passive Balancing and History Storage
Supports passive cell balancing and battery history storage, helping reduce cell-voltage differences and support fault review during maintenance.
Applications
Powering 12S UAV battery systems for inspection, mapping, patrol, training, and low-temperature industrial missions
Surveying & Mapping Drones
Provides stable battery-status monitoring and configurable protection for aerial surveying, mapping, route planning, and geographic data-collection UAV platforms.
Power Line Inspection Drones
Supports 12S UAV battery packs used in power-line inspection, grid patrol, tower inspection, and long-distance infrastructure monitoring missions.
Surveillance & Patrol Drones
Suitable for security patrol, facility inspection, border monitoring, and outdoor surveillance UAVs that require reliable battery telemetry and fault alerts.
Training UAV Platforms
Designed for 12S training drones that need stable 120A current capability, clear battery-status feedback, and reliable protection during repeated flight cycles.
Polar Expedition / Low-Temperature UAVs
Supports UAV battery systems used in cold outdoor environments, with temperature monitoring and charge-powered heating control for low-temperature operation.
Industrial Inspection Drones
Helps manage battery safety and operating status for industrial inspection, emergency response, environmental monitoring, and data-collection drone platforms.
Configure the EF-007 for Your 12S UAV Battery Pack
Share your 12S battery capacity, continuous and peak current, communication interface, heating requirements, charger interface, and flight-control system. Our engineers will evaluate the EF-007 configuration for your UAV battery pack.
- 12S 44.4V LiPo and compatible high-voltage LiPo or semi-solid packs
- 120A continuous charge and discharge configuration
- CAN 2.0B, isolated UART, RS485, Bluetooth, DroneCAN or MODBUS options
- Temperature monitoring, battery heating, passive balancing, and configurable protection
- PC tools, optional mobile diagnostics, and OEM / ODM support
Request an EF-007 Technical Proposal
UAV power engineers respond within 12 hours