The Valley Craft Power Pak has its own built-in hydraulic system powered by two 12-volt deep cycle batteries (not included), as well as a built-in battery charging system. With the batteries fully charged, the Power-Pak enables self-powered Valley Craft drum grips to generate approximately 1,000 clamping cycles without recharging. This is enough power to load and unload several truckloads of drums.

Valley Craft self-powered attachments will fit on any model or brand of lift truck, gas or electric, without having to do any modifications to the lift truck.

This operator controls the hydraulic power to the attachment with electrical rocker switches mounted on a control box, that can be held or magnetically secured to any steel surface. The spring-type electric cord connecting the Power-Pak to the control box extends from 4 feet to a maximum of 20 feet as the mast is lowered or raised