The spektrum balance extensions, with their 24-inch-long charge and balance extensions, are designed to extend the jst-xh style balance plug on a lipo battery for charging purposes. For hobbyists who want more flexibility on where they want to charge their batteries, such as in a lipo bag, these extensions are the perfect solution. They include a normal balance lead for spektrum g1 smart or competitors' batteries, and a grey smart wire for use with spm g2 smart batteries, ensuring a secure and efficient charging process.