Product Overview

The PGY-176 is an intelligent Battery Management System (BMS) specially developed for 6 series 3.7V ternary lithium battery packs, supporting 10A continuous charge/discharge current and same port charge/discharge design. It integrates high precision monitoring, full feature protection, passive balancing, RS485 and Bluetooth communication, and low power management in one compact unit, providing safe, reliable, and intelligent operation for small to medium power lithium battery systems.

Equipped with passive balancing and high accuracy SOC estimation combining coulomb counting and open circuit voltage algorithms, the PGY-176 effectively improves cell consistency, extends service life, and supports real time status viewing and parameter configuration via mobile APP and PC software.

Key Features

• Passive Balancing Technology

·Automatic cell voltage equalization during charging

·Balancing current: 30–80 mA

·Improves battery consistency and prolongs cycle life

• 6S Ternary lithium battery

·Designed for 6 series 3.7V ternary lithium battery packs

·Cell voltage detection range: 1.0 V–5.0 V

·Total voltage detection range: 0–80 V

• Stable 10A Charge & Discharge

·Continuous charge current: 10 A

·Continuous discharge current: 10 A

·Same port charge/discharge structure for simplified wiring

• Smart Monitoring & Bluetooth Communication

·Real time monitoring of voltage, current, temperature, SOC, and cycle count

·Built in Bluetooth for mobile APP (iOS & Android)

·Standard RS485 interface for industrial communication

·PC software for parameter setting and firmware OTA upgrade

• Comprehensive Protection Functions

·Over charge and over discharge protection (per-cell and whole pack)

·Charge/discharge over current and short circuit protection

·MOS tube and cell temperature protection (high/low temp)

·Cell voltage imbalance protection

·Cell voltage loss detection

• Intelligent Low Power Management

·Auto sleep after 30s of no charge/discharge

·Deep sleep for long term storage/transport

·Wake up via charging or load discharge

·Ultra low power in shutdown mode

• Anti Spark One Wire Communication

·Integrated one wire anti spark interface

·Enhances safety during wiring and connection

·Stable signal transmission

Electrical Specifications

·Battery Type: Ternary lithium battery (3.7 V/cell)

·Configuration: 6S

·Continuous Charge Current: 10 A

·Continuous Discharge Current: 10 A

·Operating Current: 5–10 mA

·Sleep Current: 300–500 μA

·Deep Sleep Current: 10–20 μA

·Balancing Type: Passive

·Balancing Current: 30–80 mA

·Cell Voltage Detection: 1.0 V–5.0 V

·Total Voltage Detection: 0–80 V

·SOC Accuracy: < 5%

·Temperature Sensors: 2×NTC

·Communication: Bluetooth + RS485

·Operating Temperature: -20°C to +70°C

·Storage Temperature: -40°C to +85°C

·Operating Humidity: 0–90% RH (non-condensing)

·Storage Humidity: 0–90% RH (non-condensing)

·Discharge Loop Resistance: < 40 mΩ

Protection Parameters (ternary lithium , 25°C)

·Over charge Protection (per cell): 4.25 V (adjustable)

·Over charge Recovery: 4.15 V

·Over discharge Protection (per cell): 2.7 V (adjustable)

·Over discharge Recovery: 3.0 V

·Short circuit Protection: 86 A ±10 A, 30 μs response

·Charge Over current: 10 A ±2 A / 64 ms (configurable)

·Discharge Over current: 25 A ±2 A / 1 s (configurable)

·Charge Temp. Protection: 0°C–55°C

·Discharge Temp Protection: -20°C–65°C

Mechanical Specifications

·PCB Dimensions: 140 mm × 70 mm × 10 mm

·Connectors: HY2.0 with buckle (4P, 15P+12P)

·Compliance: RoHS

Application Scenarios

·6S ternary lithium battery packs

·Portable power tools and small industrial equipment

·Lighting and backup power systems

·E-bikes, scooters, and small EVs

·Light-duty energy storage and mobile power supplies