My Makita 3/8 drill from the mid 90's. Still using the original battery! Forgotten about in the bottom of a drawer for a decade. Charged it up and it's good to go.
Makita 18V LXT Lithium-Ion Brushless Cordless 1/2 in. Driver-Drill Kit, 3.0Ah XFD131 - The Home Depot
Makita 18V LXT Lithium-Ion Cordless Compact 2-Piece Combo Kit (Driver-Drill/Impact Driver) CT225SYX - The Home Depot