The i-Charge has the three following systems: a) Voltage Stabilizer System (VSS) b) Battery Doctor System (BDS) c) Interference Reducer System (IRS) I-Charge is a multi purpose Voltage Stabilizer at 12V designed to maintain a stable working environment for all electronic parts and ignition in your car, hence maintain optimum engine performance and fuel economy. Interested to be our distributor or retailer for "i-Charge" product, contact us at [email protected]