PGY-157 8–24S 40–150A-PGY_Battery Management System

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PGY-157 8–24S 40–150A

Smart BMS

The PGY-157 is a multi-series smart Battery Management System (BMS) designed for 8 to 24 series lithium battery packs. It supports 40–150A continuous charge and discharge current (configurable) and is compatible with both ternary lithium and LiFePO4 battery chemistries. This BMS integrates battery monitoring, protection, balancing, communication, heating control, and SOC estimation into a single system, making it suitable for medium- to high-capacity lithium battery packs that require monitoring, control, and remote configuration.

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PGY157 8-24S BMS Installation - Safety & Wiring Guide.pdf

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Product Detail

Product Overview

The PGY-157 is a multi-series smart Battery Management System (BMS) designed for 8 to 24 series lithium battery packs.
It supports 40–150A continuous charge and discharge current (configurable) and is compatible with both ternary lithium and LiFePO4 battery chemistries.
This BMS integrates battery monitoring, protection, balancing, communication, heating control, and SOC estimation into a single system, making it suitable for medium- to high-capacity lithium battery packs that require monitoring, control, and remote configuration.

Key Features

Supports 8–24S Lithium Battery Packs
- Ternary lithium & LiFePO4
Configurable Current Ratings
- 40A / 60A / 80A / 100A / 150A
Smart BMS Architecture
- Real-time voltage, current, and temperature monitoring
Passive Cell Balancing
- Resistor-based balancing
- 30–80 mA balancing current
Bluetooth Communication (Standard)
- Mobile APP monitoring (iOS / Android)
RS485 Communication
- Supports external display or system integration
Battery Heating Function
- External heating control
- Supports up to 15A charging heating current
Accurate SOC Estimation
- Coulomb counting + OCV algorithm
Multiple Sleep & Wake-up Modes
- Low-power and deep sleep supported
Firmware OTA Upgrade Support

Electrical Specifications

Battery Chemistry:
- Ternary Lithium (3.7V)
- LiFePO4 (3.2V)
Number of Cells: 8–24S
Total Voltage Detection Range: 0–80V
Max Continuous Charge Current: 40–150A (configurable)
Max Continuous Discharge Current: 40–150A (configurable)
Operating Current Consumption: 20–25 mA
Sleep Current: 10–15 mA
Power-off Current: 10–20 µA

Protection & Control Functions

Cell Over-Voltage Protection
- Ternary: 4.25V
- LiFePO4: 3.65V
Cell Under-Voltage Protection
- Ternary: 2.75V
- LiFePO4: 2.20V
Pack Over-Voltage & Under-Voltage Protection
- Calculated based on series count
Charge & Discharge Over-Current Protection
Short-Circuit Protection
- Configurable delay: 200–800 µs
MOS Temperature Protection
Battery Temperature Protection
- High & low temperature cut-off for charge and discharge
Cell Voltage Drop Detection
Cell Voltage Difference Protection