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3S 40A Lithium Battery BMS Protection Board (Enhanced)

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SKU: 5537887

Original price was: 110,00 EGP.Current price is: 90,00 EGP.

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The 3S 40A Lithium Battery BMS Protection Board (Enhanced) is a battery management circuit built for three-cell (3S) lithium-ion or LiFePO4 packs, guarding against overcharge, over-discharge and short-circuit conditions during everyday use. Its enhanced design supports higher continuous current for e-bikes, power tools and DIY battery packs.

Key features:

  • Cell Configuration: Designed for 3S lithium battery packs with an 11.1V to 12.6V nominal range.
  • Continuous Current: Rated for up to 40A of continuous charge and discharge current.
  • Overcharge & Overdischarge Protection: Automatically disconnects the pack when any cell voltage goes out of range.
  • Short-Circuit & Overcurrent Protection: Instantly cuts power if a fault is detected on the output.
  • Cell Balancing: Helps keep individual cell voltages even while charging.
  • Low Standby Consumption: Minimal quiescent current preserves battery charge when idle.

It’s a compact, reliable safety layer for 3S packs built from 18650 or similar lithium cells.

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Specification

Technical Specification

Cell Configuration

3S (3 cells in series)
Max Current

Up to 40A
Nominal Voltage

11.1V to 12.6V (3S Li-ion)
Balancing

Passive cell balancing
Protection Features

Overcharge, over-discharge, short-circuit

Display

Cell Configuration

3S (3 cells in series)
Max Current

Up to 40A
Nominal Voltage

11.1V to 12.6V (3S Li-ion)
Balancing

Passive cell balancing
Protection Features

Overcharge, over-discharge, short-circuit

RAM

Cell Configuration

3S (3 cells in series)
Max Current

Up to 40A
Nominal Voltage

11.1V to 12.6V (3S Li-ion)
Balancing

Passive cell balancing
Protection Features

Overcharge, over-discharge, short-circuit

Storage

Cell Configuration

3S (3 cells in series)
Max Current

Up to 40A
Nominal Voltage

11.1V to 12.6V (3S Li-ion)
Balancing

Passive cell balancing
Protection Features

Overcharge, over-discharge, short-circuit

Video Card

Cell Configuration

3S (3 cells in series)
Max Current

Up to 40A
Nominal Voltage

11.1V to 12.6V (3S Li-ion)
Balancing

Passive cell balancing
Protection Features

Overcharge, over-discharge, short-circuit

Connectivity

Cell Configuration

3S (3 cells in series)
Max Current

Up to 40A
Nominal Voltage

11.1V to 12.6V (3S Li-ion)
Balancing

Passive cell balancing
Protection Features

Overcharge, over-discharge, short-circuit

Features

Cell Configuration

3S (3 cells in series)
Max Current

Up to 40A
Nominal Voltage

11.1V to 12.6V (3S Li-ion)
Balancing

Passive cell balancing
Protection Features

Overcharge, over-discharge, short-circuit

Battery

Cell Configuration

3S (3 cells in series)
Max Current

Up to 40A
Nominal Voltage

11.1V to 12.6V (3S Li-ion)
Balancing

Passive cell balancing
Protection Features

Overcharge, over-discharge, short-circuit

General

Cell Configuration

3S (3 cells in series)
Max Current

Up to 40A
Nominal Voltage

11.1V to 12.6V (3S Li-ion)
Balancing

Passive cell balancing
Protection Features

Overcharge, over-discharge, short-circuit

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