FK026 64V 40A 20S
The FK-026 is a power-oriented lithium battery protection board designed for 20-series (20S) LiFePO4 battery packs. It supports up to 40A continuous charge and discharge current and adopts a common port design, allowing charging and discharging through the same terminal. This product is a hardware-based battery protection solution focused on safe operation under moderate current and high voltage conditions. It integrates voltage, current, temperature, and short-circuit protection, and is intended for power battery applications.
Product Detail
Product Title
FK-026 20S 40A LiFePO4 Battery Protection Board (Common Port Design)
Product Overview
The FK-026 is a power-oriented lithium battery protection board designed for 20-series (20S) LiFePO4 battery packs.
It supports up to 40A continuous charge and discharge current and adopts a common port design, allowing charging and discharging through the same terminal.
This product is a hardware-based battery protection solution focused on safe operation under moderate current and high voltage conditions.
It integrates voltage, current, temperature, and short-circuit protection, and is intended for power battery applications.
Key Features
- Supports 20S LiFePO4 Battery Packs
- 40A Continuous Charge & Discharge Capability
- Common Port Architecture
- Comprehensive Protection Functions
- Overcharge protection
- Over-discharge protection
- Charge & discharge over-current protection
- Short-circuit protection
- High and low temperature protection
- Overcharge protection
- Weak-Signal Switch Control
- External switch enables or disables discharge
- External switch enables or disables discharge
- Low Standby Power Consumption
- Robust Design for Power Applications
Electrical Specifications
- Battery Chemistry: LiFePO4 (Lithium Iron Phosphate)
- Number of Cells: 20S
- Nominal Pack Voltage: approx. 60 V
- Max Charge Voltage: 75 V (CC-CV)
- Max Continuous Charge Current: 40A
- Max Continuous Discharge Current: 40A
Protection Parameters (Typical, 25 °C)
- Overcharge Protection (per cell): 3.75 V (typ.), release at 3.55 V
- Over-discharge Protection (per cell): 2.20 V (typ.), release at 2.50 V
- Charge Over-Current Protection (Icoc): 50 / 60 / 70 A (Min / Typ / Max)
- Discharge Over-Current Protection:
- Level 1: 210 / 240 / 270 A
- Level 2: 400 / 450 / 500 A
- Level 1: 210 / 240 / 270 A
- Short-Circuit Protection Response Time: ≤ 350 μs (typ.)
Temperature Protection
- Discharge Over-Temperature: 75 °C (typ.), recovery at 70 °C
- Charge Over-Temperature: 55 °C (typ.), recovery at 50 °C
- Charge Low-Temperature Cut-off: −3 °C to −5 °C (typ.), recovery at 0 °C
- Discharge Low-Temperature Cut-off: −20 °C (typ.), recovery at −18 °C
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: 90 × 60 × 8.0 mm
Application Scenarios
- Electric motorcycles and power electric vehicles
- High-voltage LiFePO4 power battery packs
- Custom 60–72 V lithium battery systems
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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Phone: +86-13620907687
Email : business@pgybms.com
Launch Tech Industrial Park, No. 4012 Wuhe Avenue, Bantian Street, Longgang District,Shenzhen