Replacement Battery DW984K-2, DW984KS-2, DW985K-2  Dewalt CORDLESS Power Tools Replaces battery Part Numbers: DW9091 DW 9091 DE9091 DE 9091 DW 9094 DE9038 DE 9038 DW9094 Fits Dewalt  Power tools:   DW906 DW911 DW918 DW928K DW928K-2 DW931K DW931K-2 DW935K DW935 DW937 DW937K DW941K-2 DW941K DW954K-2 DW966K DW966 DW969K-2 DW969K DW991B DW991KS-2 DW991KC-2 DW992K-2 DW994 DW994KQ DW996K-2 DW996KV-2 DW996KQ DW983K DW983K-2 DW984K-2 DW984KS-2 DW985K-2 DW990K-2 DW991K-2 DW991KQ-2 MY AH RATING IS DIFFERENT? The AH (Amp Hour) Rating is the storage (or fuel) of the battery, the higher it is the longer the battery lasts between charges, bit like petrol in your car so a higher or lower one makes no different to the performance, just the length of time you can use the tool for. Battery Type: Ni-Cd Battery Voltage: 14.40 V Battery Capacity: 2000mAh Colour: Black