With this Goal Zero Yeti 1250 Chaining Cable, you can connect two Goal Zero Yeti 1250 solar generators together. The two power stations are internally connected, effectively doubling the battery capacity and allowing your Yeti to support you for a longer time. The cable fits into the High Power Port of the Yeti 1250 at both ends (the port is located on the back). The rated current is a maximum of 175 amps.