GYS is a French Manufacturer of Battery Support Products. Founded in 1964, GYS employs 400 people. This 28-page catalogue includes good value consumer chargers and high-tech, multi-stage charging curve professional workshop chargers, suitable for all types of batteries including GEL and AGM. GYS also make the very popular Inverter 70 BSU, which provides 70Amps of support during extended ‘key on, engine off’ work. The range also includes starters, high quality boosters and testers.