SmartElex 3s Li-ion BMS

  • Recommended Input Voltage: 19V 5A.
  • Charge Current: 2 amps maximum.
  • 4.2V is the over-voltage detection.
  • 3V for undervoltage detection.
  • Rate of Discharge: – up to 7A. over the 10A cutoff.


  • Within India, 3 – 4 days lead time with 100% advance
  • For imports, 15 days lead time with 50% advance

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Available on backorder

  • Pick up from the IBOTS Store


  • Delivery Charges: Tamil Nadu

₹75 for parcels below 1 Kg and ₹100 for parcels weighing between 1 Kg to 2 Kg.

2-3 Days


  • Delivery Charges: Other South India

₹125 for parcels below 1 Kg and ₹175 for parcels weighing between 1 Kg to 2 Kg.

2-3 Days


  • Delivery Charges: North India

₹250 for parcels below 1 Kg and ₹325 for parcels weighing between 1 Kg to 2 Kg.

2-3 Days


  • Courier delivery

Our courier will deliver to the specified address

2-3 Days

Rs. 99

  • Warranty 1 year
  • Free Returns Policy

Payment Methods:

1. Order the Product and Specify the Delivery Method

2. You Will Receive an Order Confirmation Message

3. Wait for Your Order to Arrive

4. Pick up Your Order at The Checkout Area


A Li-ion battery pack’s intelligent component, the Battery Management System (BMS), is in charge of protection and monitoring. Since lithium-ion batteries can only be used under certain circumstances, a battery management system is necessary to keep an eye on the condition of the batteries and guarantee their safe operation.

An electronic module known as a battery management system (BMS) regulates a rechargeable battery, which can be a cell or battery pack. It does this by keeping an eye on the battery’s condition, preventing it from operating outside of its safe operating range, generating secondary data, reporting it, managing its surroundings, and authenticating it.

A highly integrated Li-ion switched-mode battery-charge controller is the SmartElex 3s BMS device. With high-accuracy charge current and voltage regulation, termination, adapter current regulation, and charge status monitoring, the device provides a constant-frequency synchronous switching PWM controller.

The gadget is powered by a wall adaptor that requires 19V DC 5A (minimum) and connects by an inbuilt DC Jack or two pin connectors. Up to 7A can be supported by our SmartElex 3s Li-ion board. Multiple protections, including overvoltage, undervoltage, and overcurrent during discharge (OCD), are features of the SmartElex 3s Li-ion BMS. The Status LEDs on the SmartElex 3s Li-ion BMS show the battery status, allowing us to determine whether the cell is overvoltage or undervoltage.

Switching Mode:

LED ONInput Power is ok
LED OFFInput power is low.


Both L1 and C ONCharging
L1 OFF3 cell battery voltage above 12.6V.
C LED OFFAnyone cell is detecting Overvoltage


D LEDDischarging
D ONCell voltage in range. Can be discharged
D OFF or FluctuatingUnder voltage detect.

Features : 

  • 2Pin connection and DC JACK input make up the input interface.
  • Two-pin connector with appropriately labelled positive and negative signals on the PCB is the output interface.
  • LED signal: Input Power state, charging progress, full charge, over-voltage, and under-voltage.
  • voltage detecting circuit with high precision.
  • Using a charging terminal for a high-voltage gadget.
  • The MOS transistor is controllable by the charge and discharge of the battery.

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