Product Description
LT-P20S017 | 14S‑20S 70A Lithium Ion Battery Protection Board
48V / 60V / 72V | NTC Thermal Sensors | Balancing Function | Common Port
The LT-P20S017 is a high‑performance lithium ion battery protection board designed for 14S to 20S LiFePO₄ and Li‑ion battery packs – covering nominal voltages from 48V to 72V. With a 70A continuous discharge current, integrated NTC thermal sensors, passive balancing, and a common port for charging/discharging, it delivers robust protection and precise control. Ideal for electric bicycles, e‑scooters, electric motorcycles, golf carts, and energy storage systems.
📊 Technical Specifications
- Model: LT-P20S017
- Cells Series: 14S – 20S (Li‑ion / LiFePO₄)
- Nominal Voltage Range: 48V (14S LiFePO₄) – 72V (20S Li‑ion)
- Continuous Discharging Current: 70A
- Input Charging Voltage: 24V / 36V / 48V / 60V / 72V (compatible with various charger types)
- Port Configuration: Common port (charge and discharge share same terminals)
- Dimensions (L×W×H): 150 × 60 × 1.6 mm
- Working Temperature: -10°C to 65°C
- Battery Types: Lithium‑ion (Li‑ion) / LiFePO₄
⚙️ Key Features
🔋 Wide Voltage Range (14S‑20S)
Supports 14S to 20S configurations – perfect for 48V, 60V, and 72V LiFePO₄ or Li‑ion battery packs.
⚡ 70A Continuous Discharge
70A continuous current capability handles high‑power motors and inverters, suitable for e‑motorcycles, cargo bikes, and industrial equipment.
🌡️ NTC Thermal Sensors
Integrated NTC thermistors provide real‑time temperature monitoring and over‑temperature protection, preventing battery overheating.
⚖️ Passive Balancing Function
Maintains uniform voltage across all cells, maximizing pack capacity and extending overall battery lifespan.
🔌 Common Port Design
Simplified wiring – single connector for both charging and discharging, reducing installation complexity and cost.
🛡️ Comprehensive Protections
Over‑charge, over‑discharge, over‑current, short circuit, and over‑temperature protections ensure safe and reliable operation.
🔋 Applications
🚲 High‑Power E‑Bikes & Scooters
Ideal for 48V‑72V e‑bikes and e‑scooters requiring 70A continuous current for powerful acceleration.
🏍️ Electric Motorcycles & Mopeds
Perfect for 60V‑72V electric motorcycle battery packs, delivering robust power and thermal protection.
🔋 Energy Storage Systems (ESS)
Suitable for 48V‑72V lithium battery banks in residential and commercial storage applications.
🏌️ Golf Carts & Utility Vehicles
Reliable BMS for 48V‑72V golf cart batteries, providing balanced charging and over‑current protection.
🖼️ Product Gallery
📦 Important BMS Assembly Notices
- Qualified personnel only – BMS assembly requires expertise in electrical systems and control wiring.
- Compliance – ensure all local building codes, regulations, and safety standards are met.
- System design & planning – define component locations, wiring, and integration with other systems.
- Documentation & labeling – maintain clear wiring diagrams and component labels for future troubleshooting.
- Wiring & connections – follow manufacturer guidelines; secure all connections, insulate properly, avoid loose strands.
- Power & grounding – use appropriate circuit breakers/fuses and proper grounding techniques.
- Testing & commissioning – thoroughly test wiring continuity, sensor operation, and communication after assembly.
- Maintenance – schedule regular inspections, preventive tasks, and software updates; keep detailed records.
- Training & support – provide user manuals and training for operators; offer ongoing assistance.
- Always consult the manufacturer’s specific documentation for each BMS component.
We offer OEM/ODM services for the LT-P20S017 platform – customize current ratings (50A/60A/70A), cell series (14S‑20S), and physical dimensions. For smaller 48V BMS options, please refer to LT-B1407. Contact our engineering team for sample requests, technical documentation, and volume pricing.
Primary: 14S BMS · 20S BMS · 48V BMS · 60V BMS · 72V BMS · 70A BMS · LT-P20S017 · lithium ion battery protection board · LiFePO₄ BMS · NTC sensor · balancing function · common port BMS
Performance: 70A continuous discharge · 14S‑20S support · passive balancing · over‑charge protection · over‑discharge protection · over‑current protection · short circuit protection · over‑temperature protection · 150×60mm compact size
Applications: electric bicycle · e‑scooter · electric motorcycle · golf cart · energy storage system · 48V lithium battery · 60V battery · 72V battery · LiFePO₄ pack · Li‑ion pack
