Enhance the performance, safety, and lifespan of your lithium-ion battery packs with the Bisida 72V 20S 50A Battery Management System (BMS), designed for 18650 cells. This common port BMS integrates a highly accurate SOC system and is suitable for professional applications where battery voltage, capacity, and resistance must remain consistent.

Key Features:

• Supports 20 series (20S) 72V battery packs based on 3.7V nominal lithium-ion cells
• Offers advanced protections: overcharge, over-discharge, overcurrent, short circuit, and temperature
• Equipped with passive voltage balancing for optimal battery health
• Robust construction: double-sided PCB, anti-corrosion, moisture/dust/drop/electrostatic protection via three-proof silicone coating
• Heat management through a dual-layer aluminum and silicone dissipation structure
• Free 400mm 2.0mm cable included with 11-pin layout (Black wire = negative on the right)

Technical Specifications:

• Battery Type: 3.6V/3.7V Li-ion (18650)
• Charging Voltage: 85V
• Charging Current: Recommended ≤10A
• Instantaneous Current: 3–5× working current
• Temperature Protection: -20℃ to 70℃
• Dimensions: 64mm × 125mm × 10mm
• Port Type: Common port (B- for total battery negative, C- for charge negative)
• Package Includes: 1x BMS Board, 1x Cable