This 4S balance lead extension adds extra length to the balance connection on compatible LiPo batteries. The 200mm length makes it easier to connect a battery to a charger when the pack needs to remain inside a LiPo safety bag. Standard JST-XH connectors provide compatibility with batteries and charging equipment that use XH-style balance connections. The soft silicone wire is flexible and easy to route around a charging setup. It is a simple accessory for extending balance leads without modifying the battery.