Solved: Battery plugged in, but not charging - HP Support Community - 6178823
HP Probook 650 G1 does not boot anymore - HP Support Community - 7248666
Synergy Digital Laptop Battery, Compatible with HP ProBook 650 G1 Laptop, (Li-ion, 10.8V, 4400mAh) Ultra High Capacity, Replacement for HP 718675-121, 718675-141, 718675-142, 718676-121 Battery - Walmart.com