Features: Upgrade your charging setup with this parallel charging board featuring EC3 connector, designed for 2-6S batteries to enable simultaneous charging (excluding 5S) with enhanced safety and compatibility. Engineered with integrated heat dissipation and streamlined, this B6 balance charging compatible board ensures efficient heat management and easy connection for multiple battery types. Ideal for hobbyists, drones enthusiasts, and electric vehicle owners requiring multi battery charging for devices. Optimize charging workflows during racing competitions, field operations, or workshop where rapid battery replenishment for models and drones is critical. Crafted from plastic, this expansion board revolutionizes parallel charging efficiency while maintaining stable temperatures, making it indispensable for power intensive applications demanding consistent. Specifications: Component:Plastic Size:Approx.12x7.2cm/4.72x2.83inch Package Includes: 1Pc Expansion Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.