Description

The NEEY Active Balancer 4S 2A is an inductive battery balancing device designed for compatible four-series rechargeable lithium battery packs. It uses active energy transfer technology to help manage voltage differences between adjacent battery cells. With a specified peak balancing current of 2A, this model provides an active balancing solution for compatible NCM and LiFePO4 battery applications.

This product is sold under the SUPERWAY brand and carries the original NEEY product branding. Its 4S configuration makes it suitable for compatible battery packs containing four individual cells connected in series. The device is designed to redistribute energy between neighbouring cells to support better voltage consistency within the battery pack.

Inductive Active Battery Balancing Technology

Rechargeable battery packs contain multiple individual cells connected in series to achieve the required voltage. During charging and discharging, differences can develop between individual cells because of variations in cell characteristics, internal resistance and operating conditions.

The NEEY Active Balancer uses inductive energy transfer technology to manage these differences. It transfers energy between neighbouring cells through a matrix transformer-based balancing arrangement.

Unlike passive balancing systems that dissipate excess energy as heat, inductive active balancing transfers energy between cells. This approach helps manage voltage differences while reducing reliance on energy dissipation.

The balancing circuit starts operating when the voltage difference between neighbouring cells exceeds the specified threshold. It stops balancing when the voltage difference falls below the stopping threshold.

4S Battery Configuration

The NEEY 4S 2A Active Balancer is designed for a 4S battery configuration. The term 4S refers to four individual battery cells connected in series.

Selecting the correct series configuration is essential when choosing a battery balancing device. The number of cells in the battery pack must match the supported configuration of the balancer.

This model is intended for compatible four-series battery packs. Before installation, users should verify the battery chemistry, individual cell voltage, total battery pack voltage and wiring arrangement.

2A Peak Balancing Current

One of the important specifications of this model is its peak balancing current of 2A. Balancing current refers to the current involved in transferring energy between battery cells during the balancing process.

The device uses inductive energy transfer to move energy between neighbouring cells when the voltage difference reaches the required operating condition.

The balancing current varies according to the voltage difference between adjacent cells. According to the product specifications, the current can reach 2A when the neighbouring cell voltage difference exceeds 0.2V.

The specified peak current should not be interpreted as continuous operation at 2A under every condition.

Compatible Battery Chemistry

The NEEY 4S 2A model is designed for compatible NCM lithium-ion and LiFePO4 battery applications.

NCM lithium-ion and lithium iron phosphate batteries have different voltage characteristics and charging requirements. Selecting a balancer that supports the intended battery chemistry is therefore important.

The specified individual cell voltage range is 3.0V to 4.2V. Users should verify the battery chemistry and voltage requirements before connecting the device.

This compatibility makes the product suitable for various rechargeable lithium battery assemblies that meet its electrical specifications.

No External Power Supply Required

An important feature of the NEEY 4S 2A inductive balancer is that it does not require a separate external power supply for its balancing operation.

The device operates using energy from the connected battery pack. This allows it to perform its intended balancing function without an additional external power module.

Its specified standby current is 10µA, helping keep standby power consumption low when the balancing circuit is not active.

Automatic Balancing Operation

The NEEY Active Balancer is designed to operate automatically according to the voltage differences between neighbouring cells.

The balancing process starts when the voltage difference between adjacent cells exceeds 0.1V and stops when the difference falls below 0.03V.

This automatic operation helps manage cell voltage differences without requiring manual balancing adjustments.

The typical balancing accuracy is specified at a 30mV neighbouring-cell voltage difference.

Compact Design and Physical Dimensions

The NEEY DG-4S 2A features a compact circuit board design intended for compatible four-series battery pack applications.

Its specified physical dimensions are 50mm in length and 32mm in width, with an approximate weight of 10 grams.

The compact construction makes it suitable for battery assemblies where installation space is an important consideration. Users should check the available mounting area and wiring arrangement before installation.

Applications of NEEY Active Balancer

The NEEY Active Balancer 4S 2A can be considered for compatible rechargeable lithium battery applications.

Potential applications include:

• 4S lithium-ion battery packs.
• Compatible LiFePO4 battery assemblies.
• NCM rechargeable battery systems.
• Custom lithium battery configurations.
• Rechargeable energy storage projects.
• Battery balancing and maintenance applications.

The final suitability depends on the battery chemistry, voltage range and electrical requirements of the complete battery pack.

Installation and Compatibility Considerations

Before installing the NEEY DG-4S 2A, confirm that the battery pack has the correct 4S configuration and supported battery chemistry.

Check the balance wire arrangement, battery terminal connections and voltage requirements. Incorrect wiring or reversed connections can damage the balancing device or connected battery components.

Installation should be carried out carefully by someone familiar with rechargeable lithium battery systems. Always follow the manufacturer’s wiring instructions and verify all connections before operation.

Why Choose NEEY Active Balancer from SUPERWAY?

The NEEY Active Balancer 4S 2A offers an inductive active balancing solution for compatible four-series battery configurations. Its 2A peak balancing current, automatic balancing operation and compact circuit board design make it an option for battery builders, technicians and users working with suitable lithium battery systems.

SUPERWAY offers this product for customers looking for battery balancing components for compatible rechargeable battery applications.

With its 4S configuration, inductive energy transfer technology and no-external-power-supply design, this model is intended to help manage voltage differences between adjacent battery cells.

Customers should verify the battery chemistry, voltage requirements, series configuration and connection compatibility before purchasing and installing the product.