Product Description
LT-GP12S011 | 20A UART Smart BMS for Bafang Motors
Supports 7S–12S Li-ion / LiFePO₄ | Bafang Protocol V5.6
The LT-GP12S011 Smart Battery Management System (BMS) is a high-performance solution engineered for Bafang electric motors and e‑bike systems. With native UART communication (Bafang Protocols V5.6), it offers seamless integration with Bafang displays, controllers, and battery management platforms. This compact BMS delivers 20A continuous discharge, 5A charging current, and supports 7S to 12S lithium-ion or LiFePO₄ battery packs – ideal for 24V, 36V, and 48V e‑bikes, scooters, and light electric vehicles.
📡 General Info & Compatibility
The LT-GP12S011 BMS is an intelligent, software‑configurable battery management system featuring UART communication pre‑configured for Bafang protocols (V5.6). It works seamlessly with Bafang motors, displays, and controllers, enabling real‑time battery data (voltage, current, SOC, temperature) to be displayed and managed through the vehicle’s dashboard. Its flexible architecture also supports other CAN/RS485 applications (with configuration).
⚙️ Key Features
📱 UART Communication (Bafang V5.6)
Pre‑integrated Bafang protocol ensures plug‑and‑play communication with Bafang motor systems. Read SOC, voltage, current, and alarms directly on your e‑bike display.
🔋 High Power Handling
20A continuous discharge current supports high‑power e‑bike motors (up to 1000W). 5A charging current enables faster, efficient charging.
🌡️ NTC Thermal Protection
Integrated NTC thermistors monitor battery temperature in real time, preventing overheating and extending battery life.
🔧 Flexible Parameter Adjustment
Voltage thresholds, current limits, and protection settings can be customized via UART – ideal for optimizing performance with specific battery packs.
💡 LED Port & Isolated Communication
Reserved LED indicator port for SOC or status display. Isolated power supply for communication ensures reliable data transmission in noisy environments.
📦 Compact Form Factor
Space‑saving design fits easily into downtube or rear‑rack battery enclosures, simplifying integration.
📊 Technical Specifications
- Model: LT-GP12S011
- Cell Series Support: 7S – 12S (24V, 36V, 48V configurations)
- Battery Chemistry: Li-ion (NMC) / LiFePO₄ / Li‑Polymer
- Continuous Discharge Current: 20A
- Maximum Charge Current: 5A
- Communication Protocol: UART (Bafang V5.6, configurable)
- Isolated Communication Power: Yes (stable data transfer)
- Temperature Sensing: NTC thermal sensors (over‑temperature protection)
- Protection Features: Over‑charge, over‑discharge, over‑current, short circuit, over‑temperature
- Balance Function: Passive balancing (adjustable)
- LED Port: Reserved for external SOC / status indicators
- Dimensions: Compact (refer to product images)
- Operating Temperature: -20°C to 70°C
🔌 Applications
🚲 Bafang E‑Bike Systems
Direct replacement for OEM BMS in Bafang‑powered e‑bikes – compatible with C961, C965, DPC‑18 displays and motors.
🛴 Electric Scooters & Trikes
36V / 48V scooter battery packs requiring UART communication for dashboard integration.
🔧 Custom EV Projects
Flexible parameter adjustment makes it ideal for DIY e‑bike, light EV, and battery swapping applications.
🖼️ Product Gallery
✅ Why Choose the LT-GP12S011 BMS?
🔌 Native Bafang Compatibility
No protocol conversion needed – communicates directly with Bafang controllers and displays.
⚡ High‑Power Capability
20A continuous discharge supports high‑torque Bafang motors (up to 1000W).
🛡️ Comprehensive Safety
NTC sensors, balance function, and full protection suite ensure battery safety and longevity.
🔧 Customizable Parameters
Adjust voltage cutoffs, current limits, and communication settings to match your specific battery pack.
We offer OEM/ODM services – custom voltages, current ratings, communication protocols (CAN/RS485), and physical dimensions. Contact our engineering team for sample requests, technical documentation, and bulk pricing.
Primary: Bafang BMS · UART BMS · 20A BMS · 36V BMS · 10S BMS · 12S BMS · e-bike battery management system · Bafang motor BMS · smart BMS · LT-GP12S011
Performance: 20A continuous discharge · 5A charge current · 7S–12S Li-ion/LiFePO₄ · NTC temperature sensor · isolated UART · Bafang protocol V5.6 · adjustable parameters
Applications: Bafang e‑bike battery · electric scooter BMS · 36V battery management · 48V e‑bike BMS · Bafang replacement BMS · DIY battery pack
