# BMS module 3S, 12.6V, 15A

> HX-3S-FL20 Rev.2.2 BMS board for 3S lithium-ion battery packs, charging voltage 12.6VDC, intended for batteries built from 3 18650 cells. Overcharge protection per cell 4.25-4.35V, over-discharge protection per cell 2.3-3.0V, maximum operating current 15A. Internal resistance

- Page: https://sigmanortec.ro/en/bms-module-3s-126v-15a
- Price: 9.78 RON
- Availability: In stock; 1-2 zile
- Reference: 9031 · EAN: 5947537909480
- Category: Electronic components > Modules for Batteries > BMS Boards
- Specifications: Technology: Lithium Ion; Load voltage: 12.6VDC; sway: Not; Number of cells: 3S
- Package (shipping data): 0.005 kg
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:49 (Europe/Bucharest)

## Description

The BMS board for 3S lithium packs offers complete charge and discharge protection for 12.6V batteries made of 3 18650 cells. It provides overcharge limitation 4.25-4.35V per cell and overdischarge shutdown 2.3-3.0V , supports operating current up to 15A and has a compact size of 51x23x4 mm for easy integration into projects.
BMS board HX-3S-FL20 Rev.2.2, offers charge/discharge protection for lithium cells in 3S configuration, total voltage 12.6V (charged). Ideal for batteries composed of 3 cells type 18650.
Specifications:
Battery charging voltage: 12.6VDC
Overload protection per cell: 4.25 - 4.35V
Overdischarge protection per cell: 2.3 - 3.0V
Maximum operating current: 15A
Internal resistance: <150mAh
Dimensions mm: 51 x 23 x 4
Battery connection method: