# Active balance mode, Lithium, 4S, 1.2A

> Active balance module for 4S Lithium packs (16.8V), equalizing cells through energy transfer between them without generating heat. Balancing current: 0.5A at 0.1V difference and 1.2A at over 0.2V difference between adjacent cells. Works with 2-4.5V per cell, compatible with Li-Ion and LiFePO4. Connects via XH-2.54, 5P connector. Reference 9441.

- Page: https://sigmanortec.ro/en/active-balance-mode-lithium-4s-12a
- Price: 55.73 RON
- Availability: In stock; 1-2 zile
- Reference: 9441 · EAN: 5946986256770
- Category: Electronic components > Modules for Batteries > Charging and Balancing Modules
- Specifications: Technology: Lithium Ion; sway: Yes; Nominal Current: 1.2 A; Number of cells: 4S
- Package (shipping data): 0.013 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 05:22 (Europe/Bucharest)

## Description

Quickly and efficiently equalizes cells in 4S lithium packs up to 16.8V, through active balancing with energy transfer between cells without heating. Provides balancing current up to 1.2A for larger differences between cells, operates with 2-4.5V per cell, compatible with Li-Ion and LiFePO4, simple connection via XH-2.54 5P connector.
The module for active balance between Lithium cells that allows the equalization of the cells in the 4S type battery packs (4 in series) with a total voltage of 16.8VDC.
The difference between this module and other modules that balance passively (discharge cells through heat), the module with active balance does not produce heat but transfers energy directly between cells. This allows equalization with a current of up to 1.2A without generating heat. It is compatible with any batteries that have a voltage per cell between 2 and 4.5VDC, from Lithium-Ion cells to LiFePo4 and others.
Specifications:
Working voltage per cell: 2 - 4.5VDC
Balancing current: 0.5A at a difference of 0.1V between adjacent cells, 1.2A at a difference greater than 0.2V between adjacent cells
Compatibility: 4S
Plug: XH-2.54, 5P
Pins:
B-: 0V
B1: 4.2V or the positive pole of the first cell
B2: 8.4V or the positive pole of the second cell
B3: 12.6V or the positive pole of the third cell
B4: 16.8V or the positive pole of the fourth cell