Made in France since 1964 Charging Range A global battery-maintenance solution

Traditional and smart battery chargers More than 50 years of professional manufacturing experience Founded in 1964, GYS was created to develop and manufacture energy conversion products for the agricultural sector. Electric fences and transformers were the first products to ever leave the factory. The family business naturally evolved over time, adapting their specialist expertise to include maintaining and servicing lead-acid starter batteries. The battery charger was born. The 90s went on the be the decade of mainstream electronics and our GYS products stepped out into this new world to quickly...

Maintaining the battery The battery is the heart of any vehicle and is put to the test during its life cycle. Long periods of inactivity, internal resistance that increases with significant temperature drops, increasingly energy-intensive electrical consumers in vehicles as well as increased self-discharge in hot weather will all have a serious impact on its lifespan. Whether in winter or summer, a battery can discharge and require specialist maintenance. It is important to note that all batteries lose capacity, even when they are not connected to a vehicle. It is, therefore, a wise choice to...

High-tech chargers Depending on the type of vehicle, the battery's capacity will differ and require an appropriately adjusted charging current. From electric scooters to construction equipment, our GYSFLASH products offer complete charging solutions to keep your equipment's batteries at the highest performance level. Our GYSFLASH range is already looking to the future; in fact, our future-proofed products are currently equipped with various state-of-the-art technologies offering a more powerful and optimised charging process. The latest features include cell rebalancing during the recharging...

Urban mobility Motorcycle special GYSFLASH, for two-wheel vehicles GYSFLASH products guarantee your urban mobility The collective awareness of our planet's future has changed the urban landscape as well as the way we travel. Electric mobility is booming and GYS products can now support electric bikes, scooters, hoverboards and other battery-powered means of transport. Compatible with Compatible with Succeed with GYSFLASH! The lithium-iron phosphate (LiFePO4) battery, which is very popular in the world of competition racing, offers a higher energy density than its lead-based predecessor. It is...

Off-road vehicles An off-road charger: quad bikes, jet skis and snowmobiles etc. Just like the batteries of two-wheel vehicles, car batteries are also subject to temperature changes and self-discharge. To help avoid this, invest in a cutting-edge GYSFLASH charger that is gentle on your battery thanks to its eight-step charging curve. The versatile GYSFLASH 6.12 and 8.12 can be used to charge two-wheel vehicles, city cars, saloons, multi-purpose vehicles and even vans. The GYSFLASH range can handle it all. The GYSFLASH 4.12 is an excellent choice for those with multiple vehicles. This charger...

Recreational vehicles Effortlessly recharge your campervan's leisure battery A specialist, agricultural charger An invaluable asset in the agricultural The GYSFLASH 18.12 PL and 32.12 PL are highly recommended for charging leisure batteries in both campervans and boats. This means that you can use the electrical appliances in your recreational vehicle without the risk of discharging or damaging your starter battery. The chargers' showroom mode is particularly useful for exhibition areas. The Battery Support Unit (BSU) protects the battery while the vehicle's electronics are being used. The connectors...

Equipped with three charging options (7, 15 and 20 A) in both 12 and 24 V, this charger is suitable for lorries, construction equipment and buses. 12 - 24 V The role of a vehicle's battery is not limited to starting the engine. It is the nerve centre for every electrical component that is vital for your safety and comfort. The Battery Support Unit (BSU) is crucial for supplying energy when the engine is switched off, for example during diagnostics or when exhibiting vehicles in a showroom. The wide range of GYSFLASH PRO products perfectly represents the wide array of battery-maintenance procedures...

Industrial solutions Automotive Industry Special Incorporate a GYSFLASH PRO into your manufacturing process Carrying out secure diagnostics Production lines Changing batteries Charging current A car manufacturer has a deep knowledge of the batteries in their own vehicles. On the production line, each battery requires a precise charging cycle based on its type, capacity and future use. Thanks to its USB connection, the GYSFLASH PRO is able to accommodatemanufacturer-designed load curves in order to meet a defined set of requirements. Internetconnected and able to communicate through its SMC link,...

Workshop special WORKSHOP SPECIAL Why use a workshop charger? Fully automatic and robust equipment for your workshops Start-up solutions Charing Range Start-up solutions Start up instantly every time Our BATIUM devices form a range of extremely versatile and powerful automated chargers. They are capable of maintaining 6 and 12 V batteries, with some of the range's bigger units able to handle up to 24 V. Boasting charging times up to 50% faster than traditional chargers, the BATIUM range recovers sulphated batteries and allows batteries left unattended to be safely charged. These robust tools...

Why use a self-starter? What is a booster? These were originally classic or automatic battery chargers with an additional feature, starting vehicles. When the battery is slightly depleted and no longer capable of normal starting (e.g. after having left on the headlights), a charger / starter can restart the motor in just a few seconds. These are free-standing, start-up stations. In fact, because they have a lead or lithium battery, they can be completely self-sufficient in terms of energy. Once connected to the vehicle using the clamps, the booster will help the defective battery to start the...