4 Series 14.8V 18650 Lithium Battery Equalization Board

The 4 Series 14.8V 18650 Lithium Battery Equalization Board is a passive balancing solution designed to ensure uniform charge distribution across a 4S lithium battery pack. It works by discharging fully charged cells through a resistive path, allowing lower-charged cells to catch up, thus maintaining battery pack health and performance over multiple charge cycles.

This module is intended for use with unprotected 18650 lithium-ion cells and should be used in conjunction with a proper battery protection board. It does not include charge/discharge protection but offers efficient passive balancing during the charging process.

🔧 Key Features

• Supports 4-series (4S) 14.8V 18650 lithium battery packs
• Uses passive equalization via resistor-based discharge
• Ensures balanced charge across all cells
• Improves battery pack longevity and performance
• Compact and lightweight board design
• Can be used alongside a separate BMS/protection board

📐 Technical Specifications

📌 Applications

• Balancing 18650 4S lithium battery packs
• Battery maintenance for DIY power banks
• Used in robotics and IoT battery setups
• Supports RC, e-bike, and energy storage packs
• Educational projects involving lithium batteries

💡 Why Choose This Equalization Board?

The 4 Series 14.8V 18650 Lithium Battery Equalization Board is ideal for maintaining balance in lithium battery packs that lack integrated balancing. While it doesn’t replace a BMS, it greatly improves performance and cycle life when used properly with a protection circuit.

📦 Package Includes

• 1 × 4 Series 14.8V 18650 Lithium Battery Equalization Board