PGY-106 12.8V 25A 4S
The PGY-106 is a lithium battery protection board designed for 4-series (4S) LiFePO₄ battery packs. It supports 25A continuous charge and discharge current and adopts a common port design, making it suitable for small energy storage and low-voltage power applications. This product is a hardware-based BMS, focusing on stable electrical protection and low self-consumption for LiFePO₄ battery systems.
Product Detail
The PGY-106 is developed for 4S lithium iron phosphate (LiFePO₄) rechargeable battery packs.
It uses a Chuangxin Micro integrated protection IC and a 4 charge MOS + 4 discharge MOS architecture, providing reliable protection during both charging and discharging processes.
With its common port structure, the board simplifies wiring and is suitable for compact battery systems used primarily in energy storage applications.
Key Features
- Supports 4S LiFePO₄ Battery Packs
- 25A Continuous Charge & Discharge Current
- Common Port Architecture
- Hardware Protection Functions:
- Overcharge protection
- Over-discharge protection
- Charge over-current protection
- Discharge over-current protection (two-level)
- Short-circuit protection
- Overcharge protection
- Low quiescent current design
- Compact PCB size
- Designed for energy storage systems
Electrical Specifications
- Battery Chemistry: LiFePO₄
- Number of Cells: 4S
- Typical Operating Voltage (Pack): 12.8 V
- Operating Voltage Range (Pack): 9.28 V – 14.6 V
- Max Charge Voltage: 14.6 V (CC / CV)
- Max Continuous Charge Current: 25 A
- Max Continuous Discharge Current: 25 A
Protection Parameters (Typical, 25 °C)
Cell Voltage Protection
- Overcharge Protection (per cell):
3.65 V (typ.), release at 3.56 V - Over-discharge Protection (per cell):
2.32 V (typ.), release at 2.58 V
Over-Current & Short-Circuit Protection
- Charge Over-Current Protection (Icoc):
70 / 80 / 90 A (Min / Typ / Max) - Charge Over-Current Delay Time:
6 / 12 / 24 ms - Discharge Over-Current Protection:
- Level 1: 70 / 80 / 90 A
- Level 2: 140 / 160 / 180 A
- Level 1: 70 / 80 / 90 A
- Short-Circuit Protection Delay Time:
200 / 350 / 700 μs (Min / Typ / Max)
Other Parameters
- Quiescent Current: ≤ 50 μA
- Conduction Resistance (B− to P−): ≤ 35 mΩ
- MOSFET Temperature Rise @ Rated Current: ≤ 65 °C
This model does not include temperature protection or balancing functions.
Environmental & Mechanical
- Operating Temperature: −20 °C to +65 °C
- Storage Temperature: −40 °C to +90 °C
- Operating Humidity: ≤ 90% RH (non-condensing)
- Maximum Operating Altitude: 4000 m
- PCB Dimensions: 60 × 32 × 10 mm
Application Scenarios
- Small LiFePO₄ energy storage battery packs
- Low-voltage storage systems
- Backup power modules
- DIY and modular LiFePO₄ battery assemblies
Our Advantages
Simple & Reliable
• Stable hardware + proven firmware
• No unnecessary features
Built for Light EVs
• Scooters / E-bikes / Tricycles
• Golf carts / Light electric motorcycles / Drones
Essential Protection
• OV / UV / OC / SC / OTP
• Designed for daily use
Bluetooth Support
• Optional Bluetooth monitoring
• Basic status & diagnostics
Easy Integration
• Clear hardware interface
• Simple configuration
Reasonable Cost
• In-house production
• Competitive pricing for real orders
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Request a Quote
Our experts team is ready to help with your specific application needs
Phone: +86-13620907687
Email : business@pgybms.com
Launch Tech Industrial Park, No. 4012 Wuhe Avenue, Bantian Street, Longgang District,Shenzhen