Smart 4S Active Balancer for Lithium Battery Packs
The 4S 2A Lithium Battery Active Balancer is designed to maintain equal voltage across all 4 cells in a battery pack. Using advanced active balancing technology, it transfers energy between cells instead of wasting it, ensuring maximum efficiency and longer battery life.
Compatible with Li-ion and LiFePO4 batteries, this module is ideal for improving performance in battery systems used for solar, EVs, and DIY applications.
| Parameter |
Specification |
| Product Model |
DG-4S 2A |
| Supported Cells |
4S (4-series) |
| Applicable Battery Type |
NCM / LiFePO₄ (LFP), Teernary Lithium |
| Cell Voltage Range |
3.0V – 4.2V (per cell) |
| Balance Method |
Inductive energy transfer, auto-activation on >0.1V cell difference |
| Balance Current |
0.5A–0.7A (for 0.2V < difference < 0.1V), Up to 2A (for adjacent voltage difference >0.2V) |
| Balance Accuracy |
±30mV (0.03V typical) |
| Product Size |
5cm × 3.2cm |
| Product Weight |
10g |
| Grade/Pads Plating |
FR-4 PCB, lead-free, hot air solder |
| External Power Supply |
Not required (self-powered) |
| Quiescent Current |
<10μA |
| LED Indicator |
Yes (lights ON when balancing; OFF when idle) |
| Operating Temperature |
-20°C to +60°C |
| Wiring |
Connect directly to each cell tap |
| Applications |
E-bike, solar ESS, DIY battery packs, powerwall, robotics, power tools |
Key Features
4S Configuration – Supports 4 cells in series
2A Active Balancing Current – Fast and efficient voltage equalization
Energy Transfer Technology – No heat loss like passive balancers
Supports Multiple Battery Types – Li-ion, LiFePO4, LTO
Improves Battery Lifespan – Prevents cell imbalance damage
High Efficiency Circuit Design – Low power consumption
Compact & Lightweight Module – Easy to install
Stable & Reliable Performance – Suitable for continuous use
Applications
This active balancer is widely used in:
Electric vehicles (E-bikes, EVs)
Solar battery storage systems
DIY lithium battery packs
UPS & inverter systems
Portable power solutions
Why Use a 4S Active Balancer?
Battery cell imbalance can reduce efficiency and damage your battery over time. This 4S 2A lithium battery active balancer helps:
Maintain equal voltage across all cells
Improve charging & discharging efficiency
Extend battery life
Enhance system safety and stability
Benefits of Active Balancing Technology
Transfers energy between cells efficiently
Minimizes heat loss compared to passive balancing
Improves overall battery performance
Ensures consistent output and reliability
Buy 4S 2A Lithium Battery Active Balancer Online in India
Upgrade your battery system with advanced balancing technology. Perfect for professionals, engineers, and DIY enthusiasts.
Order now and enhance your battery performance with reliable active balancing!
