A telescoping storage container adapted for receipt in a bed of a pickup truck and behind a cab of the truck. The storage container includes an open top external box and an open top internal box. The internal box is sideably received inside the external box and includes one of more sliding tool storage drawers and a shelf with a rotating bin for easy access to the stored tools. The internal box includes a moveable top lid, which covers an open top in the external box and an open top in the internal box. The storage container, when configured as a truck toolbox, is dimensioned for receipt on the truck bed and next to the rear of a truck cab. Also, the storage container includes a self-contained battery power supply system to operate a scissor lift for raising and lowering the internal box inside the external box.