Lithium-Ion (Li-Ion). 4430 mAh 51.3 Wh. 11.58 V. Brand compatibility: HP. Black. Number of batteries included: 1 pc(s). BTI replacement battery for ELITEBOOK 640 G9 ELITEBOOK 650 G9 645 G9 645 G10 650 G9 650 G10 PROBOOK 440 G10 PROBOOK 450 G9 PROBOOK 450 G10 PROBOOK 445 G9. Features. Brand compatibility. HP. Product colour. Black. Battery voltage. 11.58 V. Number of battery cells. 3. Battery capacity. 4430 mAh. Battery technology. Lithium-Ion (Li-Ion). Battery. Rechargeable battery. Yes. Certificates. Compliance certificates. CE, UKCA. Sustainability. Sustainability compliance. Yes. Packaging data. Quantity per pack. 1 pc(s). Number of batteries included. 1 pc(s). Other features. Country of origin. China. leaflet. Origin Promo. Origin Eco