Product Description
LT-GP13S080 | 13S 48V 40A CAN BMS for E-MTB & Cargo Bikes
AFE BQ76940 + MCU | Passive Balancing | NTC Sensors | 40A Continuous
The LT-GP13S080 Battery Management System (BMS) is a high‑performance solution specifically engineered for E‑MTB (electric mountain bikes) and cargo bikes. Built around an AFE BQ76940 chip and powerful MCU, it delivers precise monitoring, robust protection, and flexible integration. With 40A continuous discharge, dual charging protections, passive balancing, and NTC thermal sensors, this BMS ensures optimal performance and safety for demanding off‑road and heavy‑load applications. Its compact 75×60mm size allows easy integration into battery enclosures.
📡 Brief Introduction
The LT-GP13S080 BMS is a cutting‑edge solution designed for 13S 48V lithium‑ion battery packs, commonly used in high‑power e‑bikes, cargo bikes, and light electric vehicles. It features common ports for charging and discharging, simplifying wiring and installation. The BMS is equipped with an AFE BQ76940 from Texas Instruments, combined with an MCU for advanced monitoring and control. With CAN communication, it seamlessly integrates with vehicle controllers, displays, and telemetry systems, providing real‑time data on voltage, current, temperature, and state of charge (SOC).
⚙️ Key Features
🔋 40A Continuous Discharge
Supports 40A continuous current – ideal for high‑torque e‑MTB motors and heavy‑load cargo bikes, ensuring reliable power delivery even on steep climbs.
📡 CAN Communication
Integrated CAN bus interface enables seamless communication with motor controllers, displays, and BMS master units for real‑time monitoring and control.
🧠 AFE BQ76940 + MCU
High‑precision Texas Instruments BQ76940 Analog Front‑End combined with a dedicated MCU ensures accurate voltage, current, and temperature monitoring with reliable cell balancing.
🔒 Dual Charging Protections
Enhanced safety with dual charging protection circuits, safeguarding the battery pack during charging and preventing over‑voltage, over‑current, and reverse polarity.
⚙️ Dedicated MOSFET Lines
Features 2 MOSFET lines for charging and 1 line for discharging, providing robust power handling and improved safety during charge/discharge cycles.
🌡️ Passive Balancing & NTC Sensors
Passive balancing maintains cell voltage consistency. Integrated NTC thermistors monitor battery and MOSFET temperatures, preventing overheating and extending pack life.
📏 Compact Size
Dimensions: 75 × 60 mm – fits easily into downtube or rear‑rack battery enclosures without sacrificing performance.
⚙️ Adjustable Parameters
Voltage thresholds, current limits, and protection settings can be customized to match specific battery chemistries and application requirements.
📊 Technical Specifications
- Model: LT-GP13S080
- Cell Series: 13S Li‑ion (48V nominal)
- Continuous Discharge Current: 40A
- Charge Current: Configurable (common port)
- Communication: CAN bus (CAN 2.0)
- Controller: AFE BQ76940 + MCU
- Balancing: Passive balancing
- Temperature Sensing: NTC thermistors (multiple sensors)
- Protections: Over‑charge, over‑discharge, over‑current, short circuit, over‑temperature, dual charging protection
- Dimensions (L×W): 75 × 60 mm
- Operating Temperature: -20°C to 70°C
🚲 Applications
🏔️ E‑MTB (Electric Mountain Bikes)
Designed for demanding off‑road conditions, providing reliable power and protection for high‑torque motors and steep terrain.
🚚 Cargo Bikes
Perfect for heavy‑load cargo e‑bikes, ensuring consistent power delivery and long cycle life under high current demands.
🛴 Light Electric Vehicles
Suitable for e‑scooters, tricycles, and other light EVs requiring 48V 40A battery management with CAN integration.
🔋 Custom Battery Packs
Ideal for high‑performance DIY battery builds where precise monitoring and CAN communication are required.
🖼️ Product Gallery
We offer OEM/ODM services for the LT-GP13S080 platform – customize current ratings, communication protocols, and physical dimensions. Contact our engineering team for sample requests, technical documentation, and volume pricing.
Primary: 13S BMS · 48V BMS · 40A BMS · CAN BMS · E-MTB BMS · cargo bike BMS · LT-GP13S080 · BQ76940 · passive balancing · NTC sensor · electric mountain bike battery management · lithium ion BMS
Performance: 40A continuous discharge · CAN 2.0 · AFE BQ76940 · MCU · dual charging protection · 2+1 MOSFET lines · adjustable parameters · over‑current protection · short circuit protection · temperature protection
Applications: electric mountain bike · cargo e‑bike · light electric vehicle · 48V lithium battery · high‑power e‑bike · DIY battery pack
