Original Toshiba Satellite R20 R25 Portege M400 M405 Tecra M7 Battery - PA3510U-1BRLSpecifications * Capacity: 10.8V x 4000mAh * Dimensions and weight: 11.3"(W) X 5.1"(L) x 0.3"/ 0.9"(Front/Back); 15 ozs * Battery life: Up to 9.96 hours (Primary + 2nd Slice Battery) * Recharge* Time (typical): o (Main Battery Off/On): Up to 3 hours / 3 ~ 13 hours** o (Main Battery + 2nd Battery Off/On): Up to 6 hours / 6 ~ 23.50 hours** * Compatible with Toshiba Satellite R20, R25; Portege M400, M405; Tecra M7 seriesCompatible Models:Satellite R20,Satellite R25,Portege M400,Portege M405,Tecra M7,