Replacement battery HP PROBOOK X360 440 G1 X360 11 G3 EE X360 11 G4 EE X360 11 G3 X360 11 G4 X360 11 G6 RU03XL L12791-855 RU03048XL RU03048XL-PR L12717-541 L12717-421 L12717-1C1 L12717-171 HSTNN-LB8K HSTNN-IB8P 11.4V 4210mAh 48 Whr 3 Cell, Li-lon