Main Function Power the Mark 2 AC by the Goal Zero Yeti6000X/ Yeti 3000X/ Yeti15 00X portable power station. The cable for Mark 2 to Goal Zero must be used with the 12V to 24V inverter . If you have not purchased it, please a dd the 12V to 24V inverter to cart. Specification Interface of the Goal Zero Yeti6000X/ Yeti3000X/ Yeti5000X Power Station Anderson 12V 30A Charging Cable Input 12V 25A Running Time through Goal Zero Yeti6000X 25~51 hrs Running Time through Goal Zero Yeti3000X 13~25 hrs Running Time through Goal Zero Yeti1500X 6~13 hrs