# Lithium-Ion BMS Module, 6S, 40A, 25.2V, with Balance

> BMS module for Lithium-Ion battery packs in 6S configuration, with 40A nominal current and up to 70A peak. Nominal voltage 24VDC, charging voltage 25.2VDC. Provides individual cell protection against overcharge, overdischarge, overcurrent and short circuit, plus integrated balancing up to 45mA. Internal resistance

- Page: https://sigmanortec.ro/en/lithium-ion-bms-module-6s-40a-252v-with-balance
- Price: 26.40 RON
- Availability: In stock; 1-2 zile
- Reference: 9573 · EAN: 5942571636798
- Category: Electronic components > Modules for Batteries > BMS Boards
- Specifications: Technology: Lithium Ion; Load voltage: 25.2VDC; sway: Yes; Number of cells: 6S
- Package (shipping data): 0.015 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 05:21 (Europe/Bucharest)

## Description

BMS for 6S Li-Ion packs, 24V nominal and 25.2V when charging, supports 40A continuously and up to 70A in peaks, offers protection on each cell against over-charging, over-discharging, over-current and short circuit, integrated balance of up to 45mA for voltage equalization and better stability over time, slim 88x34x3mm format for easy integration.
BMS (Battery Management System) module, for Lithium Ion cells in 6S configuration (6 in series), with balance and 40A current. The maximum voltage per cell is 4.2V and the nominal total voltage of the battery pack is 24V.
This BMS offers individual protection on the inserted cells, preventing over-charging, over-discharging, over-current and short-circuit. If one of the cells goes out of the maximum voltage parameters, charging or discharging will be interrupted. It also achieves the balance between cells with a maximum current of 45mA. This balance is thought to compensate for the small voltage differences between the inserted cells which, in the long term, add up and lead to much larger differences. It is important that the inserted cells, as with any other BMS, are equal both in capacity, internal resistance and degree of wear. It is also recommended that the cells, before being inserted, be placed in parallel for at least 24 hours, in order to equalize the voltage between them.
Specifications:
Nominal voltage: 24VDC
Charging voltage: 25.2VDC (6 cells x 4.2VDC)
Compatible batteries: Lithium-Ion, with charging voltage of 4.2V per cell
Number of inserted cells: 6
Internal circuit resistance: <20mOhm
Rated current: 40A
Current in short peaks: 70A maximum
Operating temperature: -30 - +80 degrees C
Dimensions mm: 88 x 34 x 3mm
Overload detection: 4.25V
Overload protection delay: 1 second
Overload protection release: 4.15V
Cell balancing threshold: 4.125V
Balance current: 45mA
Over-discharge detection: 2.7V
Over-discharge protection delay: 1 second
Over-discharge protection release: 3V
Overcurrent voltage detection: 100mV
Overcurrent protection delay: 1 second
Over-current protection: 75A (+-5A)
Overcurrent protection release: load disconnection
Short-circuit protection condition: short on the consumer
Short-circuit detection delay: 250us
Short-circuit protection release: load disconnection
Login: