Type: Ni-MH Voltage: 7.2V Capacity: 4000mAh Weight: 380g per battery with package Replace for: Hitachi: 325292, EB 7, EB 712S, EB 714S, EB 7B, EB 7G, EB 7M, EB 7S, FEB 7, FEB 7S Fit for: ( Please search with "Ctrl+F" ) Hitachi: DN 10DAT, DN 10DSA, DN 10DVA, DN 6DM, DN 7DT, DN 7DV, DS 10DTB,DS 10DVB,DS 10DSA DS 6DV, DS 7DF, DS 7DV , FDS 7DVA, NR 40G, NR 90GC, NR 90GC2,NR 90GR,NR 90GR2, WH 6DC Announcements: 1. Please don't store the batteries for a long time, it need to be used at least once a month. 2. If it’s necessary, please using a cotton swab with alcohol to clean the battery contacts. 3. After long-time using in your power tools, please fully rest the batteries. 4. Before recharging the batteries, please make sure that the batteries have already coolled down.