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

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PGY106 12V 20A 4S
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PGY106 12V 20A 4S

PGY106 12V 20A 4S

Standard BMS

Product Detail

Product Overview
 The PGY106 is a compact battery protection board designed for 4-series (4S) LiFePO₄ battery packs.
 It supports up to 20A continuous charge and discharge current and features a common port design, allowing charging and discharging through the same terminals.
 This hardware-based BMS provides essential battery safety functions including overcharge, over-discharge, over-current, and short-circuit protection, making it suitable for small energy storage modules, backup systems, and DIY battery assemblies.

Key Features

  • Supports 4S LiFePO₄ battery packs
  • 20A continuous charge & discharge capability
  • Common port architecture
  • Hardware protection: overcharge, over-discharge, charge/discharge over-current, short-circuit protection
  • Compact PCB design
  • Low self-consumption

Electrical Specifications

  • Battery Chemistry: LiFePO₄
  • Number of Cells: 4S
  • Nominal Pack Voltage: approx. 12.8V
  • Max Charge Voltage: 14.6V (CC–CV)
  • Max Continuous Charge Current: 20A
  • Max Continuous Discharge Current: 20A

Protection Parameters (Typical, 25 °C)

  • Overcharge Protection (per cell): 3.75V (release at 3.55V)
  • Over-discharge Protection (per cell): 2.20V (release at 2.70V)
  • Charge Over-Current Protection: 25–30A
  • Discharge Over-Current Protection: 40–50A
  • Short-Circuit Protection Delay: ≤ 500 μs

Environmental & Mechanical

  • Operating Temperature: −20 °C to +65 °C
  • Storage Temperature: −40 °C to +90 °C
  • Humidity: ≤ 90% RH (non-condensing)
  • PCB Dimensions: compact for easy integration

Application Scenarios

  • 4S LiFePO₄ battery packs
  • Small energy storage modules
  • Backup power systems
  • DIY battery assemblies

Our Advantages

Simple & Reliable

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• Stable hardware + proven firmware

 

• No unnecessary features

Built for Light EVs

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• Scooters / E-bikes / Tricycles

 

• Golf carts / Light electric motorcycles / Drones

Essential Protection

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• OV / UV / OC / SC / OTP

 

• Designed for daily use

Bluetooth Support

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• Optional Bluetooth monitoring

 

• Basic status & diagnostics

Easy Integration

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• Clear hardware interface

 

• Simple configuration

Reasonable Cost

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• In-house production

 

• Competitive pricing for real orders

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Phone: +86-13620907687

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Email : business@pgybms.com

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Launch Tech Industrial Park, No. 4012 Wuhe Avenue, Bantian Street, Longgang District,Shenzhen

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