Electric lock pick guns are great tools, and the HPC ElectroPick is very effective and of good quality in both design and durability. The HPC Electro Pick is actually a converted Black & Decker electric screw driver, so half of the pick is Black & Decker and the other half is HPC. The pick is powered by (4) AA batteries. You could easily make this pick rechargable by installing standard rechargable batteries.