5 Series 18650 Lithium Battery Protection Board, 18.5V/21V, Anti-Overcharge/Discharge for Solar Lighting.

This protection board is designed to safeguard and enhance the performance of 18650 lithium batteries arranged in a 5-series configuration. It supports 18.5V to 21V voltage levels, making it an ideal choice for solar lighting applications. The board offers robust functionality by preventing overcharging and over-discharging, thereby extending battery life and ensuring reliable operation of connected devices. Its compact design allows for easy integration into existing systems, while its durable construction ensures long-lasting protection and efficiency. Perfect for anyone looking to maintain optimal battery health and performance in solar-powered solutions.