-Custom Electronics circuit design-PCB Layout-Prototype implementations-Fiber-Optics (transform electric/wired signal communication into fully optical, which enables devices to be more immune to EMI)-Battery testing (for NiCd, NiMH, Li-Ion, Lipo, and LiFePO4)-Battery chargers, fuel/gas gauges, BMS (Battery Management Systems), protection modules-DC/DC converter (especially for mobile power applications)-Advanced in soldering-Consulting for Battery utilizing applications-Finding solutions that clients might have and offer suggestions, designs, and/or prototypes