Lithium Battery Charger Protection Module (BMS) 2S 20A 8.4V with Cell Balancing

2s Li-Ion 20A 8.4V Protection board is a small PCB mounted Lithium Battery protection module. This small and smart protection module comes with various features like Short-circuits, Over-charge, Over-discharge, Over-current protection and Balance function. It is straight forward to install and convenient to use in all your DIY portable projects.

Suitable for lithium-ion cells in an 8.4V (max Voltage) 2s configuration.

Features

• High Current Capacity: This BMS supports up to 20A, ideal for high-demand applications. It ensures your 18650 batteries handle heavy loads efficiently.
• 2S Configuration: Designed for 2 series 18650 batteries, providing balanced charging. It optimizes battery performance and longevity through proper management.
• Comprehensive Protection: The BMS offers overcharge, overdischarge, and short circuit protection. It ensures your batteries remain safe and reliable under various conditions.
• Efficient Balancing: It features cell balancing to maintain consistent voltage across all cells. This function prevents any cell from becoming overcharged or undercharged.
• Compact and Durable: The board is compact, fitting easily into tight spaces. Its durable construction ensures reliable performance in demanding environments.

Specifications:

• Model: 2S Li-ion – 7.4V-8.4V
• Over-Charge Detection Voltage: 4.2V-4.3V
• Over-Discharge Detection Voltage: 2.5V-2.6V
• Over-Current Protection: 25A
• Max working Current: 20A
• Operating Temperature: -10℃ -50℃
• Static current: less than 18uA
• Internal Resistance: Less than 7mΩ
• Balance activation voltage: 4.17V-4.2V
• Balance current: 100 mA
• Size: Approx.: 48.4 x 20.1 x 4mm