# BMS module 4S, 30A, 14.8V

- Page: https://sigmanortec.ro/en/bms-module-4s-30a-148v
- Price: 18.15 RON
- Availability: In stock; 1-2 zile
- Reference: 33422 · EAN: 5949195081652
- Category: Electronic components > Modules for Batteries > BMS Boards
- Specifications: Technology: Lithium Ion; Load voltage: 16.8VDC; sway: Not; Number of cells: 4S
- 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 03:39 (Europe/Bucharest)

## Description

BMS protection module for 4S 14.8V Li-ion packs, ensures safe charge and discharge management, supports 10A continuous with natural cooling and up to 30A peak, includes short circuit, overcharge and deep discharge protection, operates between -40 and 85°C, compact format 50 x 22 x 4 mm for easy integration.
Battery protection module type BMS for 4S cells, 14.8V, 16.8V, Lithium.
Specifications:
Voltage: 4 Lithium batteries of 3.7V (16.8VDC charged)
Discharge current: 10A natural cooling, 15A with heat sinks, 30A peak
Short circuit protection: Yes
Overcharge protection: 4.25±0.025V, 4.15±0.05V
Discharge protection: 2.50±0.08V, 3.00±0.1V
Current protection: 20 - 30A
Operating temperature: -40 - 85°C
Dimensions mm: 50 x 22 x 4mm