Skip to Content

Battery Li-ion Battery BMS Protection Board 3S 10/20A 11.1V/12.6V HX-3S-D01 for 18650

The HX-3S-D01 3S Li-ion Battery Protection Board is a reliable Battery Management System (BMS) designed for 3-cell (3S) 18650 lithium battery packs. It provides essential protection features such as overcharge, over-discharge, overcurrent, and short circuit protection. With support for both 10A continuous current and up to 20A peak current, this module is ideal for medium-power applications requiring stable and safe battery operation.

Package Includes:

  • 1 x HX-3S-D01 3S Li-ion Battery Protection Board
35.00 AED 35.00 AED (Tax included)

Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days

Features:

  • Designed for 3S (11.1V / 12.6V) lithium-ion battery packs
  • Compatible with 18650 Li-ion cells
  • Provides overcharge, over-discharge, overcurrent, and short circuit protection
  • Supports 10A continuous current with 15–20A peak current capability
  • Low standby current (<50µA) for improved energy efficiency
  • Wide operating temperature range
  • Compact and lightweight design for easy integration
  • Stable and reliable performance for long-term usage

 

 

Principle of Work:

The module monitors the voltage of each individual cell in the battery pack. If any cell exceeds the safe charging voltage limit, the charging circuit is disconnected. Similarly, if a cell’s voltage drops below the safe discharge threshold, the load is disconnected to prevent battery damage. In addition, the BMS detects overcurrent and short circuit conditions. When such events occur, it immediately cuts off the output to protect both the battery and connected devices. Once conditions return to normal, the system can resume operation automatically.

 

Pinout:

18650 Li-ion Lithium Battery Charger

  • B+: Battery positive terminal
  • B-: Battery negative terminal
  • B1: Connection between cell 1 and cell 2
  • B2: Connection between cell 2 and cell 3
  • P+: Output/charging positive terminal
  • P-: Output/charging negative terminal

 

Applications:

  1. 3S 18650 lithium battery packs
  2. Power banks and portable battery systems
  3. Electric tools and DIY battery projects
  4. LED lighting systems
  5. Robotics and embedded electronics
  6. Solar energy storage solutions

 

Circuit:

BMS 3S 20A 12V 12.6V 18650 Lithium Battery Protection Board with Short  Circut Protect PCB PCM for 3.7V Lithium Charging : Amazon.ca: Electronics

  • Connect B+ and B- to the battery pack terminals
  • Connect B1 and B2 to the intermediate battery cells
  • Use P+ and P- for load and charger connections
  • Ensure correct wiring order to avoid damage

 

Technical Details:

  • Model: HX-3S-D01
  • Battery Type: 3S Li-ion (18650)
  • Nominal Voltage: 11.1V
  • Full Charge Voltage: 12.6V
  • Continuous Working Current: 10A
  • Peak Current: 15–20A
  • Over-discharge Voltage: 2.3 – 3.0V ±0.05V
  • Operating Temperature: -40°C to +50°C
  • Storage Temperature: -40°C to +80°C
  • Quiescent Current: <50µA
  • Dimensions: 51 × 23 × 4.0 mm