1.2A 2S Active Balancer Equalizer Module Price in Bangladesh

The 1.2A 2S Active Balancer Equalizer Module is a compact battery-balancing circuit designed for two-cell series battery packs. When lithium cells are connected in series, small differences in cell capacity, internal resistance, age and self-discharge characteristics can cause their voltage levels to become unequal.

An active balancer helps address this imbalance by transferring energy from a relatively higher-voltage cell toward a lower-voltage cell. This is different from conventional passive balancing, which typically dissipates excess energy from a higher-voltage cell as heat.

With a balancing capability of up to 1.2A, this module can be useful for suitable 2S battery packs used in electronics, robotics, portable power equipment and DIY battery projects.

What Is a 2S Active Balancer?

A 2S battery pack consists of two individual cells or cell groups connected in series. Connecting cells in series increases the total pack voltage while the capacity in Ah remains based on the individual parallel group capacity.

Because individual cells are never perfectly identical, their voltage can gradually diverge during charging and discharging. A 2S active balancer monitors the cell voltages and helps redistribute energy between them.

The goal is to keep the two cells at more similar voltage levels and improve the balance of the overall series pack.

Key Features

• Designed for 2S lithium battery packs
• Up to 1.2A active balancing current
• Active energy-transfer balancing
• Helps reduce voltage differences between cells
• Suitable for compatible Li-ion battery packs
• Compatible with LFP batteries on supported board versions
• Compact PCB design
• Useful for custom battery-pack projects
• Can be used alongside an appropriate BMS
• Helps improve cell voltage consistency

Technical Specifications

Note: Exact activation voltage, operating voltage, standby consumption, dimensions and supported battery chemistry may vary between different versions of this module. Always verify the actual board specifications before installation.

Working Principle

The module monitors the voltage of the two series-connected cells. When one cell reaches a higher voltage than the other, the active balancing circuit transfers energy from the higher-voltage side toward the lower-voltage side.

This process helps reduce the voltage difference between the cells.

Because energy is transferred rather than simply burned off through a resistor, active balancing can reduce unnecessary energy dissipation compared with conventional passive balancing.

The actual balancing current is not necessarily fixed at 1.2A at all times. It can vary according to the voltage difference between the cells and the operating conditions of the module.

Applications

The 1.2A 2S Active Balancer can be used for:

• 2S Li-ion battery packs
• Compatible 2S LiFePO4 battery packs
• DIY rechargeable battery systems
• Portable electronic devices
• Robotics projects
• RC electronics projects
• Small energy-storage systems
• Backup power projects
• Custom battery-pack development
• Battery voltage equalization projects

Advantages

Active Energy Transfer

The module transfers energy between cells instead of simply dissipating excess energy as heat through a resistor.

Better Cell Voltage Balance

It helps reduce voltage differences between the two series-connected cells.

Compact Design

The small PCB form factor makes it convenient for integration into suitable battery-pack designs.

Suitable for DIY Projects

It can be useful for electronics enthusiasts, engineers and battery-pack designers working with 2S lithium battery configurations.

Helps Improve Series-Pack Consistency

Keeping cells closer in voltage can help the individual cells operate more uniformly as part of a series battery pack.

Limitations

• This module is not necessarily a complete BMS.
• It may not provide overcharge, over-discharge, short-circuit or over-current protection.
• LFP compatibility depends on the exact module version.
• Maximum balancing current is dependent on operating conditions.
• Properly matched cells should still be used in a battery pack.
• A suitable charger and protection system are required for a complete battery solution.

Installation & Usage Tips

• Confirm that the battery is configured as 2S before connection.
• Check the module’s supported battery chemistry and voltage range.
• Follow the polarity and cell-connection markings printed on the PCB.
• Do not reverse the connection polarity.
• Use cells with similar capacity and characteristics where possible.
• Pair the balancer with an appropriate BMS when protection is required.
• Use a charger designed for the specific battery chemistry and 2S configuration.
• Insulate exposed electrical connections to prevent accidental short circuits.
• For permanent battery packs, use a suitable enclosure and appropriate protection measures.

Active Balancer vs Passive Balancer

An active balancer transfers energy between cells, while a passive balancer normally removes excess energy from a higher-voltage cell through a resistive load.

For suitable battery applications, active balancing can provide more efficient energy redistribution and lower unnecessary heat generation. However, the correct balancing technology depends on the battery design, capacity, chemistry and application.

Why Choose a 2S Active Balancer?

For a 2S lithium battery pack, maintaining better voltage consistency between the two series cells can be important for reliable battery operation.

The 1.2A 2S Active Balancer Equalizer Module provides an energy-transfer approach to cell balancing and can complement a properly selected BMS and charging system.

Why Buy from ElectroXBD?

ElectroXBD offers electronic components, development modules, battery accessories and related hardware for students, hobbyists, engineers and electronics projects in Bangladesh.

The 1.2A 2S Active Balancer Equalizer Module is a practical choice for users who need active voltage equalization for compatible 2S lithium battery packs.

Frequently Asked Questions

1. What is a 2S active balancer?

A 2S active balancer is an electronic circuit designed to reduce voltage differences between two cells or cell groups connected in series.

2. What does 1.2A mean?

The 1.2A specification indicates the maximum balancing-current capability under suitable operating conditions. The actual current can vary depending on the voltage difference between the cells.

3. Can this module be used with Li-ion batteries?

Yes, compatible versions are designed for 2S Li-ion battery packs. Always verify the voltage range of the specific board before use.

4. Can it be used with LiFePO4 batteries?

Some versions support LFP batteries. However, battery chemistry compatibility should be confirmed for the exact module because operating-voltage thresholds can differ between Li-ion and LFP systems.

5. Is this a BMS?

No. An active balancer primarily performs cell voltage equalization. A separate BMS may be required for functions such as overcharge, over-discharge, over-current and short-circuit protection.

6. How many cells does it support?

This module is designed for a 2S configuration, meaning two individual cells or two parallel cell groups connected in series.

7. Does active balancing reduce heat generation?

Compared with passive balancing, which dissipates excess energy through resistors, active balancing transfers energy between cells and can therefore reduce unnecessary energy loss as heat.

8. Can I use it with a custom battery pack?

Yes, provided the battery configuration, chemistry and voltage range are compatible with the module. For a complete battery system, appropriate cells, BMS, charger and protection measures should be selected together.

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Common Questions:

Q: What is the price of 1.2A 2S Active Balancer Equalizer Module in Bangladesh?

A: The latest price of 1.2A 2S Active Balancer Equalizer Module in Bangladesh is 220 BDT.

Q: Where to buy 1.2A 2S Active Balancer Equalizer Module in Bangladesh?

A: You can buy the 1.2A 2S Active Balancer Equalizer Module at the best price from ElectroXBD in Bangladesh.