Type: Ni-MH Voltage: 18V Capacity: 3500mAh Item Weight: 885g per battery with package Replace: BAT025, BAT026, BAT160, BAT180, BAT181, BAT189, 2 607 335 266, 2 607 335 278, 2 607 335 536, 2 607 335 680, 2 607 335 688, 2 607 335 696, 2 610 909 020 Fit for: ( Please search with "Ctrl+F" ) GSB 18 VE-2, GDS 18 V-HT, GSR 18 VE-2, PSB 18VE, PSR 18VE, 13618, 13618-2G, 15618, 1644, 1644-24, 1644B-24, 1644K, 1644K-24, 1646K, 1659K, 1659RK, 1662, 1662B, 1662K, 1662K-24, 1688K-24, 22618, 23618, 32618, 32618-RT, 33618, 33618-2G, 3453, 3453-01, 35618, 3860CK, 3860CRK, 3860K, 3860RK, 3870, 3870-04, 52318, 52318B, 53518, 53518B Announcements: 1. Please don't store the batteries for a long time, it need to be used at least once a month.