2S BMS 20A Li-ionSKU 6040

Power Supply & Converters

2S BMS 20A Li-ion

₹120

01 — About

What it does

The 2S 20A Li-ion BMS Protection Board is a compact battery management system (BMS) designed for 2-cell (2S) lithium-ion battery packs. It provides reliable protection against overcharge, over-discharge, over-current, and short circuit, ensuring safe charging and discharging of lithium-ion batteries. With a continuous discharge current of up to 20A, it is ideal for battery-powered electronics, robotics, DIY battery packs, and portable devices.

Key features

  • Designed for 2S (7.4V nominal) lithium-ion battery packs
  • Supports up to 20A continuous discharge current
  • Overcharge protection
  • Over-discharge protection
  • Over-current and short-circuit protection
  • Automatic recovery after fault removal
  • Compact PCB design for easy battery integration
  • Suitable for rechargeable 18650 lithium-ion battery packs

Good to know

  • Designed only for 2S lithium-ion battery packs.
  • Use matched cells with the same capacity, voltage, and age for best performance.
  • Do not exceed the maximum charging voltage of 8.4V.
  • Verify the wiring connections (B+, B-, BM, P+, P-) before powering the circuit.
  • This module is intended for lithium-ion batteries and should not be used with other battery chemistries.

02 — Datasheet

Specifications

10
Module Type
Battery Management System (BMS)
Battery Configuration
2S Lithium-Ion
Nominal Battery Voltage
7.4V
Maximum Charging Voltage
8.4V
Continuous Discharge Current
20A
Overcharge Protection Voltage
4.25V ± 0.05V per cell
Over-discharge Protection Voltage
2.5V ± 0.1V per cell
Protection Features
Overcharge, Over-discharge, Over-current, Short Circuit
Cell Type
Lithium-Ion (18650 and similar)
Operating Temperature
-20°C to +60°C