EF-012 · SMART POWER FOR UAVs

EF-012 6S 80A Smart UAV BMS with Isolated CAN 2.0B

A smart BMS designed for 6S NMC lithium-ion drone battery packs, featuring a 20A charging current and an 80A continuous discharge rate. It includes cell, battery pack, and temperature monitoring; 50 mA passive balancing; configurable protection functions; and isolated CAN 2.0B and UART communication interfaces.

Request Compatibility Review → Download Product Specification →

6S NMC Li-ion Battery Packs

25 A / 80 A Charge / Continuous Discharge

CAN 2.0B Isolated Communication

2 NTC Channels Temperature Monitoring

71 × 63.8 × 15 mm | 35g L*W*H | Weight

Is EF-012 Right for Your 6S UAV Battery Pack?

6S CONFIGURATION CHECK

Match the pack before integration.

Check to see if your battery pack is compatible with the EF-012

6S NMC Li-ion Series Connection

6 cells shown · 22.2V nominal · 15.0–25.8V operating

Series connection path Cell positive connects to the next cell negative B− = Cell 1 negative · B+ = Cell 6 positive

SELECTED 6S1P BATTERY PACKS

6S 22.2V battery-pack options for EF-012 review

15.0–25.8V PACK RANGE

Soft Pack UAV Battery 10C

6S1P Configuration

22.2V Voltage

22Ah Capacity

22000mAh soft pack UAV battery

LiPo UAV Battery 15C

6S1P Configuration

22.2V Voltage

12Ah Capacity

12000mAh LiPo UAV battery

LiPo UAV Battery 25C

6S1P Configuration

22.2V Voltage

20Ah Capacity

20000mAh LiPo UAV battery

LiPo UAV Battery 25C

6S1P Configuration

22.2V Voltage

30Ah Capacity

30000mAh LiPo UAV battery

LiPo UAV Battery 25C

6S1P Configuration

22.2V Voltage

22Ah Capacity

22000mAh LiPo UAV battery

Soft Pack UAV Battery C-RATE TBC

6S1P Configuration

22.2V Voltage

22Ah Capacity

22000mAh soft pack UAV battery

EF-012 CHECK 6S configuration 15.0–25.8V operating range Up to 25A charge Up to 80A continuous discharge Confirm cell chemistry and harness rating

6S · COMMON PORT

71 × 63.8 × 15 mm

EF-012 6S 80A Smart UAV BMS

Common charge/discharge port with isolated CAN 2.0B, UART, 50 mA passive balancing and configurable protection.

25 A Charge 80 A Discharge 50 mA Balancing 35 g

Share Project Requirements →

6S NMC Li-ion Common Port CAN 2.0B / UART

ENGINEERING SPECIFICATIONS

Key Specifications

Verify battery-pack configuration, current, sensing, balancing and communication requirements before system integration.

Battery and Electrical Configuration	Specification
Product Model	EF-012
Battery Pack Configuration	6S NMC Li-ion UAV Battery Pack
Nominal Cell Voltage	3.7 V
Nominal Pack Voltage	22.2 V
Operating Voltage	15.0–25.8 V
Charge Current	Up to 25 A
Continuous Discharge Current	Up to 80 A
Port Configuration	Common Charge / Discharge Port
BMS Operating Temperature	−30°C to 70°C
Board Size(LWH) / Weight	71 × 63.8 × 15 mm / 35 g

Monitoring, Balancing and Communication	Specification
Cell Voltage Measurement	0–5 V · ±5 mV at 25°C
Pack Voltage Measurement	15.0–25.8 V · ≤1%
Current Measurement Accuracy	±100 mA below 100 A · ±3% below 500 A
Temperature Acquisition	2 NTC Channels
Temperature Measurement	−40°C to 105°C · ±2°C
SOC Estimation Accuracy	3%–5% after one full charge/discharge cycle
Passive Balancing Current	50 mA
CAN Communication	Isolated CAN 2.0B · 1 Mbps · BMS ID 1
UART Communication	115200 bps · BMS ID 1
Bluetooth	Built-in · Shares the UART Port

EF-012 SEARCH-AND-RESCUE UAV FUNCTIONS

Protection, Communication & Battery Intelligence

Four operating scenarios for search-and-rescue UAV battery packs: high-temperature discharge warning, BMS precharge, multi-protocol communication and real-time SOC estimation.

High-accuracy in-flight SOC estimation for a search-and-rescue UAV battery pack

SYSTEM INTEGRATION OVERVIEW

Connect EF-012 to Your 6S UAV Battery System

6S NMC Li-ion Battery Pack

15.0–25.8 V operating voltage

EF-012 Smart UAV BMS

Common charge/discharge port

Charger / Load

P+ connects to the battery-pack positive terminal

B− Connection Connect battery negative to B− first.

Voltage Harness Connect BAT+ first, then B1 through B6 in order.

Charge / Discharge Connect P− to the charger or load negative terminal.

CAN Wiring Connect CAN H and CAN L to the isolated CAN bus.

ISOLATED CAN 2.0B · 1 Mbps · BMS ID 1

Host Software View battery voltage, current, temperature, SOC and protection status; configure supported BMS parameters.

Data and Firmware Review fault and operating data; update firmware through CAN or UART.

Common charge/discharge port CAN H / CAN L UART 115200 bps Bluetooth shares the UART port Confirm protocol and pinout before integration

Product Validation

EF-012 6S 80A UAV BMS Product Testing

Watch EF-012 product wiring, host-computer connection, LED status display, cell undervoltage warning and discharge-overcurrent testing.

01
Product Wiring Checks the EF-012 wiring and port connection used in the test setup.
02
Host-Computer Connection Confirms the BMS connection to the host computer for data and status monitoring.
03
LED Status Display Shows the BMS LED status indication during the test procedure.
04
Cell Undervoltage Warning Demonstrates the cell-undervoltage warning indication in the test setup.
05
Discharge Overcurrent Test Demonstrates the discharge-overcurrent test and the applicable BMS protection response.

Request EF-012 Integration Review

CORE BATTERY MANAGEMENT

What EF-012 Monitors and Controls

Core monitoring, protection and balancing functions for 6S NMC Li-ion UAV battery packs.

Cell and Pack Voltage Monitoring

Cell voltage: 0–5 V, ±5 mV at 25°C. Pack voltage: 15.0–25.8 V, ≤1% accuracy.

Current Monitoring

±100 mA below 100 A; ±3% below 500 A for charge and discharge current measurement.

2 NTC Temperature Monitoring

Two NTC channels, −40°C to 105°C measurement range and ±2°C accuracy.

Configurable Battery Protection

Configure supported protection and battery-capacity parameters through host software.

50 mA Passive Cell Balancing

Passive balancing helps reduce cell-voltage differences within the battery pack.

SOC, SOH and Capacity Estimation

SOC accuracy is 3%–5% after one complete charge/discharge cycle following initial power-on.

STANDARD OR CUSTOM BMS

Standard EF-012 or a Custom UAV BMS?

Choose standard EF-012 when your battery pack matches its 6S NMC configuration. For different electrical, communication or mechanical requirements, explore a custom UAV BMS solution.

Explore Custom BMS Options →

STANDARD

Use Standard EF-012 If Your Pack Matches

6S NMC Li-ion · 15.0–25.8 V
Common charge/discharge port
Up to 25 A charge · 80 A continuous discharge
71 × 63.8 × 15 mm installation space
Isolated CAN 2.0B or UART interface

CUSTOM

Explore a Custom UAV BMS If You Need

A different cell configuration or voltage range
Charge or discharge current beyond the standard rating
Different connector, port or harness requirements
Protocol, data definition or pinout confirmation
Special installation or protection-setting requirements

CUSTOM PROJECT

Prepare These Details for a Custom BMS Inquiry

Share the core battery-pack and system requirements on our custom UAV BMS page.

Battery chemistry and series count Required charge and discharge current Connector, harness and pinout CAN or UART protocol requirement Available board space and installation limits

DOCUMENTS, SUPPORT AND WARRANTY

EF-012 Technical Documents, Support and Warranty

Use the current EF-012 product specification to confirm technical fit, wiring, software functions and warranty terms before ordering or integration.

EF-012 Product Specification

Review the 6S NMC Li-ion configuration, 25 A charge current, 80 A continuous discharge current, electrical data, ports and dimensions.

Open Specification PDF ↗

Wiring and Configuration Reference

The specification covers B−, P−, P+, J1 sensing, CAN H/L, P1 UART and J3 LED interfaces, plus parameter settings and firmware updates through CAN or UART.

View Wiring and Settings ↗

12-Month Warranty Terms

EF-012 is covered for failures under normal use for 12 months. Refer to the specification for exclusions, including incorrect use, out-of-spec operation and unauthorized repair.

Read Warranty Terms ↗

Engineering FAQ

What battery pack is EF-012 designed for? +

EF-012 is designed for 6S NMC Li-ion UAV battery packs using cells with a nominal voltage of 3.7 V. The specified operating-voltage range is 15.0–25.8 V.

What current capability does the EF-012 provide? +

EF-012 uses a common charge and discharge port. The product configuration supports charging current up to 25 A and continuous discharge current up to 80 A. Confirm the actual battery cells, harness, connector and load profile before integration.

What protection functions are available? +

The BMS supports cell and pack overcharge and over-discharge protection, charge and discharge overcurrent protection, short-circuit protection, MOSFET overtemperature protection and cell-temperature protection. Supported protection thresholds, recovery thresholds and delays can be configured through host software.

How does temperature monitoring work on EF-012? +

EF-012 uses two NTC temperature-acquisition channels with a measurement range of −40°C to 105°C and an accuracy of ±2°C. The factory defaults include charge low-temperature protection at −5°C and charge high-temperature protection at 65°C. During flight, the specified discharge temperature conditions generate warnings.

Which communication interfaces are available? +

EF-012 provides an isolated CAN 2.0B interface and a UART interface. Factory defaults are CAN at 1 Mbps with BMS ID 1, and UART at 115200 baud with ID 1. The built-in Bluetooth module and UART interface share one UART port and cannot be used at the same time.

What warranty terms apply to the EF-012 UAV BMS? +

EF-012 is covered by a 12-month warranty for failures under normal use. The warranty does not cover incorrect operation, use beyond specification, unauthorized disassembly or repair, water or moisture exposure, intentional damage, barcode damage or force majeure events.

Product Comparison

Compare 6S UAV BMS Options

Compare the standard 6S options by current, communication and board size. Select a custom UAV BMS when your battery pack or interface requirements fall outside the standard configuration.

Compare Model	Lower current EF-011 6S 45A Smart UAV BMS 6S ≤45 A	Current product EF-012 6S 80A Smart UAV BMS 6S 80 A	Project-defined Custom UAV BMS engineering path Pack Interface
Battery configuration	6S NMC Li-ion	6S NMC Li-ion	Defined by project
Rated charge current	≤30 A	Up to 25 A	Defined by project
Continuous discharge current	≤45 A	Up to 80 A	Defined by project
Communication	Isolated CAN 2.0B · DroneCAN support	Isolated CAN 2.0B · UART	Confirmed with your project
Board size / weight	84 × 55 × 11 mm · 28.7 g	71 × 63.8 × 15 mm · 35 g	Defined by project
Choose this option when	6S pack with lower continuous-current demand.	6S pack requiring up to 80 A continuous discharge.	Standard pack, current, port or protocol requirements do not fit.
Product page	View EF-011 →	Viewing EF-012	Explore Custom BMS →

EF-012 UAV BMS INTEGRATION

Confirm Your
EF-012 Integration

Share your UAV battery-pack and flight-control requirements. Our team can help you confirm whether the EF-012 6S 80A smart BMS matches your integration needs.

6S NMC Li-ion battery pack

≤80A Continuous discharge current

CAN 2.0B Isolated communication

EF-012 6S 80A Smart UAV BMS with Isolated CAN 2.0B