The NEEY 4th Version 4A Smart Active Balancer enhances battery performance by redistributing energy between cells, ensuring uniform charge/discharge cycles. It supports LiFePO4, Li-ion, and LTO batteries across 8S–24S configurations, prevents voltage imbalances, and extends battery lifespan. Its 4A balancing current and real-time monitoring make it ideal for EVs, solar storage, and industrial applications.
How Do Battery Balancers Extend Battery Life? – Youth Battery
How Does the NEEY 4A Smart Balancer Work?
The balancer uses active energy transfer to shift excess charge from higher-voltage cells to lower-voltage ones via inductors and MOSFETs. This minimizes voltage gaps during charging/discharging, optimizing efficiency. Real-time voltage monitoring and 4A current ensure rapid correction, even under high-load conditions.
What Batteries Are Compatible with the NEEY 4A Balancer?
It works with LiFePO4, Li-ion, and LTO chemistries in 8S–24S configurations. Customizable settings via Bluetooth/app integration allow adjustments for specific battery types, ensuring compatibility with EVs, marine systems, and renewable energy setups.
| Battery Type | Chemistry | Supported Configurations |
|---|---|---|
| EV Batteries | LiFePO4 | 12S–24S |
| Solar Storage | Li-ion | 8S–16S |
| Industrial Packs | LTO | 10S–20S |
Why Choose Active Balancing Over Passive Balancing?
Active balancing transfers energy instead of wasting it as heat (like passive systems). This improves efficiency by 30–50%， reduces thermal stress， and works during charging/discharging. Ideal for high-capacity systems where energy conservation is critical.
How Does Temperature Affect Battery Balancing? – Youth Battery
How to Install the NEEY 4A Balancer?
- Turn off the battery system.
- Connect balancer wires to each cell’s terminals.
- Secure the balancer in a ventilated area.
- Power on and pair via Bluetooth to monitor.
What Are Common Troubleshooting Steps?
- No Balancing: Check connections and cell voltages.
- Overheating: Ensure airflow and reduce load.
- App Errors: Update firmware or reset the device.
How Does It Extend Battery Lifespan?
By preventing cell overcharge/over-discharge， the balancer reduces degradation. Tests show a 20–40% lifespan increase in LiFePO4 packs， especially in cyclic applications like solar storage.
Voltage imbalances cause individual cells to work harder than others， accelerating wear. The NEEY 4A mitigates this by maintaining voltage differentials below 0.05V across all cells. This uniformity minimizes stress during deep discharge cycles， a common issue in off-grid solar systems. Additionally， the balancer’s adaptive algorithms adjust balancing speed based on temperature fluctuations， further protecting cells in environments ranging from -20°C to 60°C.
What Safety Features Does It Include?
Over-voltage， under-voltage， and short-circuit protection. Aluminum casing dissipates heat， and reverse polarity safeguards prevent damage during installation.
The device employs multi-layer protection circuits that isolate faulty cells within milliseconds. Its aluminum housing provides IP54-rated dust/water resistance while enhancing thermal management. For high-current applications， the balancer automatically reduces balancing intensity if internal temperatures exceed 80°C. Field tests demonstrate effective prevention of thermal runaway in 48V Li-ion packs， even during simultaneous charging and balancing at maximum 4A current.
“The NEEY 4A’s adaptive algorithms set a new standard for high-current balancing. Its ability to function under dynamic loads makes it indispensable for commercial energy storage systems.” — Battery Systems Engineer
FAQs
- Does It Work with 24V Systems?
- Yes， it supports 8S (24V) to 24S (72V) configurations.
- Can It Balance During Discharge?
- Yes， active balancing operates continuously， unlike passive systems.
- Is Bluetooth Pairing Required?
- No， but it enables real-time data tracking and customization.