PGY164 48V 35A 13S-PGY_Battery Management System

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Specializing in the design, development and production of battery management systems (BMS) and protection boards.

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PGY164 48V 35A 13S

Standard BMS

The PGY-164 is a compact smart battery management system designed for 13-series (13S) ternary lithium battery packs. It supports up to 35A discharge capability and adopts a seperate port design, while operating in a charge-only (no discharge output) configuration. With integrated Bluetooth monitoring, comprehensive protection functions, and low-power operation, this BMS is suitable for battery packs that require safe charging, status monitoring, and controlled energy management.

Product Overview

The PGY-164 is developed for 13S ternary lithium (4.2V per cell) battery packs, integrating battery protection, monitoring, and communication into a compact smart BMS solution.

This model is configured as charging enabled but discharge disabled, making it suitable for applications where battery charging, monitoring, and protection are required without direct load output.
The system supports Bluetooth communication, allowing users to monitor battery voltage, current, temperature, and SOC in real time via mobile applications.

Key Features

Supports 13S Ternary Lithium Battery Packs
Charge-Only Operation
- Charging enabled
- Discharge output disabled
Up to 35A Discharge Capability (Internally Managed)
Common Port Architecture
Bluetooth Communication
- Real-time battery status monitoring
Comprehensive Protection Functions:
- Overcharge & over-discharge protection
- Charge & discharge over-current protection
- Short-circuit protection
- Cell voltage imbalance protection
SOC Estimation
- Coulomb counting combined with OCV algorithm
Low-Power Sleep & Deep-Sleep Modes
Compact PCB Design

Electrical Specifications

Battery Chemistry: Ternary Lithium (4.2V cells)
Number of Cells: 13S
Nominal Pack Voltage: approx. 48.1 V
Max Charge Voltage: approx. 54.6 V (CC / CV)
Max Continuous Charge Current: 5 A
Max Discharge Capability: 35 A (discharge output disabled in this configuration)

Protection Parameters (Typical, 25 °C)

Overcharge Protection (per cell):
4.25 V, release at 4.15 V
Over-Discharge Protection (per cell):
2.50 V, release at 3.00 V
Charge Over-Current Protection:
Software-controlled over-current thresholds
Discharge Over-Current Protection:
Multi-level protection (internally managed)
Short-Circuit Protection:
Hardware fast response, typical delay ≈ 500 μs
Temperature Protection:
- Cell temperature protection (1× NTC)
- MOSFET over-temperature protection

Protection thresholds and delays are configurable via software.

Communication & Monitoring

Bluetooth Communication
- Real-time display of:
  - Pack voltage
  - Current
  - Cell voltages
  - Temperature
  - SOC
  - Cycle count
Parameter configuration via APP
Supports sleep and deep-sleep wake-up control