The JBD SP14S004 Smart BMS is a high-performance battery management system designed for 7S to 14S lithium-ion (3.7V) and LiFePO₄ (3.2V) battery packs. With selectable continuous current ratings from 20A to 50A and integrated Bluetooth, this BMS supports UART communication and real-time monitoring via the XiaoxiangElectric app or PC software.

Key Features:

• Supports automatic detection of 7S–14S configurations
• Built-in Bluetooth and UART interface (standard)
• Compatible with both Li-ion and LiFePO₄ chemistries
• Real-time data access and configuration via app or PC
• Passive balancing with 20–55mA current
• Protection functions: overcharge, overdischarge, overcurrent, short circuit, and temperature
• Internal and external NTC temperature sensors
• Optional LCD and one-wire communication support
• Sleep mode to reduce consumption during inactivity

Technical Specifications:

• Battery Type: 3.7V Li-ion / 3.2V LiFePO₄
• Supported Cells: 7 to 14 series (automatic detection)
• Size: 63 × 52 × 14 mm
• Continuous Current: 20A / 30A / 40A / 50A
• Peak Current (1s): 60A / 90A / 120A / 150A
• Balance Mode: Static and charge balance
• Balance Current: 20–55mA
• Charging Voltage: 4.20V per cell (for Li-ion)
• Operating Temp: -20°C to 75°C
• Sleep Power Consumption: ≤1500μA
• Environmental Storage: -5°C to 40°C, <70% RH
• Communication: UART (non-isolated), optional 1-wire
• PC Software: JBD PC Tool
• App: XiaoxiangElectric for Android/iOS

Applications:

Electric scooters, e-bikes, electric tools, portable battery packs, and DIY energy storage systems.

Package Includes:

• 1× BMS with Built-in Bluetooth
• 1× Balance Wire Harness