3S-4S 1.2A Lithium Battery Active Equalizer Balancer Board
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৳ 400.00৳ 500.00 (-20%)
This 3S-4S 1.2A active balancing board is a high-efficiency energy transfer module designed to maximize the life and capacity of lithium battery packs. Compatible with Li-ion, Li-Polymer, and LiFePO4 chemistries, it utilizes advanced capacitive technology to shift charge from high-voltage cells to low-voltage cells with minimal heat generation.
The 3S-4S 1.2A Lithium Battery Active Equalizer Balancer Board is a highly efficient, intelligent power management module designed to optimize the performance, capacity, and overall lifespan of multi-cell lithium battery packs. Compatible with Li-ion, Li-Polymer, and LiFePO4 battery chemistries, this board bridges the gap left by standard passive Protection Boards (BMS) by offering proactive, high-current cell equalization.
How Active Balancing Works
Traditional passive balancing modules work by burning off excess energy from high-voltage cells through resistors, wasting power and generating significant heat. This active equalizer utilizes an advanced capacitive energy transfer mechanism instead. It detects the precise voltage discrepancies between neighboring cells and dynamically transfers energy from the highest-voltage cells directly into the lower-voltage cells. This non-destructive process generates virtually no excess heat and maximizes the total usable capacity of your battery pack.
Key Features & Capabilities
- High Balancing Current: Delivers a dynamic balancing current of up to 1.2A to 1.5A. The balancing current scales naturally with the voltage delta—the greater the voltage difference between the cells, the higher the balancing current until perfect harmony is reached.
- Dual 3S and 4S Support: Designed with versatility in mind, this board can be wired to support either 3-cell (3S) or 4-cell (4S) pack configurations. It includes a dedicated terminal plug and color-coded silicone fly-leads for direct, error-free wiring.
- Ultra-High Precision: Constantly monitors cell health to achieve an equalization accuracy within 3mV to 5mV. This tight tolerance ensures that all cells age evenly, preventing premature pack failure caused by a single weak cell.
- Smart Sleep Protection: Built-in low-voltage protection automatically shifts the board into an ultra-low consumption sleep mode if a cell drops below 2.5V, preventing the balancer from accidentally over-discharging your battery pack during storage.
Ideal Applications
- Custom Power Tools: Restoring and leveling DIY or rebuilt high-drain battery packs for drills, saws, and grinders.
- Electric Vehicles (EVs): Providing cell leveling for lightweight electric bikes, scooters, and RC hobby models.
- Renewable Energy Storage: Enhancing the efficiency of small-scale solar storage walls, backup power supplies (UPS), and camping power banks.
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