# BMS module 5S, 15A, 18.5V

> BMS module 5S for Li-Ion packs with 5 series-connected cells. Protects against overcharge, deep discharge, short circuit and overcurrent. Rated current 15A, peak up to 25A, recommended charging voltage 21V, internal resistance

- Page: https://sigmanortec.ro/en/bms-module-5s-15a-185v
- Price: 9.97 RON
- Availability: In stock; 1-2 zile
- Reference: 9184 · EAN: 5943192970643
- Category: Electronic components > Modules for Batteries > BMS Boards
- Specifications: Technology: Lithium Ion; Load voltage: 21.0VDC; sway: Not; Number of cells: 5S
- Package (shipping data): 0.006 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 03:40 (Europe/Bucharest)

## Description

BMS module for 5S Li-ion packs, protects cells from overcharging, deep discharge, short circuit and overcurrent, keeping the battery within safe parameters. Supports 15A continuous discharge and up to 25A peak, has low standby consumption and low internal resistance for minimal losses, compatible with series and parallel configurations, compact format 87 x 16 mm.
BMS (Battery Management System) module for the protection of individual cells against overcharging, discharging and excessive current. This module is essential when making a battery with 5 inserted cells, because, in the absence of a BMS, the voltage of the individual cells can increase or decrease beyond the allowed limit, resulting in battery damage.
It offers an instantaneous power of up to 25A and can support a continuous discharge of up to 15A. Always making sure that the temperature is not excessive.
Accumulators can be placed both in series and in parallel.
Important: The module only protects the batteries, to charge them it is necessary to provide the voltage and current required for charging.
Specifications:
Maximum continuous discharge rate: 15A (max)
Maximum discharge peaks: 25A (max)
Number of inserted cells: 5
Nominal cell voltage: 3.7V (4.2V Charged)
Recommended charging voltage: 21V
Maximum charging current: 15A, see the battery specifications. Normally, charging between 0.5C and 1C is recommended.
Overload protection: 4.28V, +-0.05V
Protection delay: 0.5s
Discharge protection: 2.55V,+-0.08V
Protection delay: 0.1s
Protection cancellation voltage: 2.9V, +-0.1V
Type of short-circuit protection: Load cutting
Short-circuit protection delay: 250uS
Overcurrent protection: 30A, +-3A
Detected voltage: 150mV
Current protection delay: 9ms
Overcurrent action: Power interruption
Internal resistance: <20mOhm
Operating consumption: <30uA
Standby consumption: <10uA
Operating temperature: -30 - +80 degrees
Dimensions mm: 87 x 16mm