931702-171 931702-421 931702-541 HSTNN-IB8B HSTNN-LB8F HSTNN-UB7K CD03XL CD03045XL CD03048XL. Laptop Battery for HP Probook 640 645 650 G4 640 650 G5. Since it's designed to be compatible with your existing model, you won't have the expense or hassle of replacing your entire laptop.
eBay