Specifications: – Battery type: Li-ion. – Voltage: 11.1 also compatible with 10.8v. – Capacity: 4400 mAH. Compatible Models: HP PROBOOK 4440S HP PROBOOK 4441S HP PROBOOK 4445S HP PROBOOK 4446S HP PROBOOK 4530S HP PROBOOK 4535S HP PROBOOK 4540S HP PROBOOK 4330S HP PROBOOK 4331S HP PROBOOK 4430S HP PROBOOK 4431S HP PROBOOK 4435S HP PROBOOK Compatible part numbers: HSTNN-XB2E, HSTNN-XB2F, HSTNN-XB2G, HSTNN-XB2H, HSTNN-XB2I, HSTNN-XB2N, HSTNN-XB2O, HSTNN-XB2R, HSTNN-XB2T, HSTNN-XB3C, K646AA, LC32BA122, PR06, PR06Q, PR09, QK646AA, QK646UT, QK647AA 633733-151, 633733-1A1, 633733-321, 633735-351, 633805-001, 650938-001, What’s in the box Laptop Battery
