Mark 2 Battery Specification View Mark 2 Battery User Manual Battery Type 18650 Lithium-Ion Polymer Battery Capacity 24V 35Ah/ 840Wh DC Charge Input 18V-36V (Recommended input voltage: 21V-27V) Full Charge Time About 6 hours (by official power adapter) DC Jack Output 12V/5A Max USB Type C PD(5V,9V,12V,20V/45W Max) USB Type A 5V/2A Max Net Weight 12lb Size 20"L x 8.6"W x 2.3"H Operation Temperature 0?-40? / 32°F-104?