Replacement battery for ALIENWARE 15 R1 15 R2 ALW15ED ALW15CD ALW15ER ALW15ED-1718 ALW15ED-1728 ALW15ED-1828 ALW15ED-1828T ALW15ED-2718 ALW15ED-2728 ALW15CD-1718 ALW15CD-1748 ALW15CD-1848 ALW15ER-3718 8-cell 14.8V 6380mAh Li-Ion 92 Wh