Frequently Asked Questions
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The jewel in the crown of GYS’ battery-maintenance range is our cutting-edge GYSFLASH PRO (standard and CNT models). These high-power, smart BSUs are fitted with inverter technology and can maintain all battery types (lead, lithium and traction, etc.) at a perfectly stabilised voltage, which can strongly impact their performance. Entirely designed and manufactured in France, these machines offer a range of advanced functions that are essential to automotive and industry professionals. Whether vertical or horizontal, they offer outstanding charging performance for all battery types from 6 - 48 V. GYS’ battery-chargers offer 5 operating modes which have made our BSUs incredibly popular on the market.
1. Keep your showroom cars’ batteries at 100%.
2. Conserve the vehicle’s power source during the diagnostic phase.
3. Recharge your batteries.
4. Connecting to the power supply.
5. Saving the vehicle’s data when changing the battery.
The GYSFLASH PRO’s range’s electronic systems are calibrated and programmed to continuously monitor the current and the voltage delivered by the cables. These inputs can be interrupted at any time and, therefore, this feature can preserve the on-board electronics of the vehicle, the charger and the user. They have 6 safeguards:
1.Irregular under-voltage protection
This safeguard can be accessed in BSU mode. It aims to limit a faulty battery’s overheating risk by stopping the charging process if the battery’s voltage becomes unusually low. How this safeguard works: if the battery’s voltage level remains below 10 V for more than 10 minutes whilst in use, despite the current supplied by the charger, this will stop the charging process and an error message will be shown on the display screen.
2. The charger’s thermal protection
This protection protects the charger from any internal overheating. How this safeguard works: In order to protect the charger from overheating, the charger’s power levels are monitored according to the device’s internal temperature. If the charger’s internal temperature exceeds a certain level, the charger will immediately shut down to protect itself.
3. Reverse-polarity protection
This protection prevents the reverse-polarity risk in the battery. How this safeguard works: if a polarity inversion is detected at the charger’s clamp’s terminals, the charger will automatically stop the charging process and show an error on the display screen
4. Battery over-voltage protection
This protective safeguard protects the charger in the event of an over-voltage from the battery. How this safeguard works: if a voltage greater than 16 V is detected on the charger’s clamps, the charger will immediately stop and will show an error on the screen.
5. Battery-disconnect protection
This protective safeguard makes it possible to stop the charger from working if the battery becomes disconnected from the charger. This is to prevent an electrical voltage from remaining present on the charger clamps
6. Charging-time protection
This safety feature identifies unrecoverable batteries and stops the charger to prevent explosions. How to use: if a battery fails, it will not charge. The GYSFLASH PRO will identify this anomaly and shut down the charging process. It will display an error that states ‘battery out of order’.
Yes, we offer fast and free international express shipping for all products available at Balticdiag.com. We deliver worldwide — including USA, Europe, North America, South America, Asia, Africa, and Australia — using trusted courier services like DHL, UPS, and FedEx. Every order is shipped with express delivery straight to your door, ensuring quick and secure arrival. Shipping fees are included in the product price, and we provide full tracking information for each shipment so you can follow your package from dispatch to delivery.
We accept a wide range of secure global and local payment methods, including:
A charger that maintains a vehicle’s battery at a perfectly stabilised voltage. It compensates the energy demand during all ‘ignition on/engine off’ work. As daily servicing is not an option, it ensures that the battery performance and the vehicle’s on-board electronics are fully functional.
A vehicle has a long way to go before it reaches the workshop. From the assembly line to its delivery, from its transport to the final customer’s garage, passing through a showroom. At each stage, the battery is faced with discharge risks that must be anticipated to minimise any long-term damage.
Because the battery’s role is no longer just to start the vehicle. It is the focal point of all the electrical components in your vehicle that are essential for both safety and comfort. The Battery Support Unit (BSU) provides an invaluable service. It guarantees a stable voltage and instantaneously supplies the necessary current, particularly during diagnostic phases or vehicle exhibitions in showrooms.
An essential part of any modern vehicle, the battery is the backbone of all the properly performing electronic components found in a vehicle. The proliferation of computers and other sensors that respond to the on-going challenges of on-board electronics make the demand for energy more and more important for:
Increasing energy needs coupled with demanding daily usage (short journeys) require a healthy battery. Good maintenance involves paying special attention to all operations that take place with the ignition on and the engine off. These situations demand a lot of energy and cause strong discharges. The BSU has the role of taking over from the battery in order to preserve it.
A charger that maintains a vehicle’s battery at a perfectly stabilised voltage. It compensates the energy demand during all ‘ignition on/engine off’ work. As daily servicing is not an option, it ensures that the battery performance and the vehicle’s on-board electronics are fully functional.
A vehicle has a long way to go before it reaches the workshop. From the assembly line to its delivery, from its transport to the final customer’s garage, passing through a showroom. At each stage, the battery is faced with discharge risks that must be anticipated to minimise any long-term damage.
Because the battery’s role is no longer just to start the vehicle. It is the focal point of all the electrical components in your vehicle that are essential for both safety and comfort. The Battery Support Unit (BSU) provides an invaluable service. It guarantees a stable voltage and instantaneously supplies the necessary current, particularly during diagnostic phases or vehicle exhibitions in showrooms.
An essential part of any modern vehicle, the battery is the backbone of all the properly performing electronic components found in a vehicle. The proliferation of computers and other sensors that respond to the on-going challenges of on-board electronics make the demand for energy more and more important for:
Increasing energy needs coupled with demanding daily usage (short journeys) require a healthy battery. Good maintenance involves paying special attention to all operations that take place with the ignition on and the engine off. These situations demand a lot of energy and cause strong discharges. The BSU has the role of taking over from the battery in order to preserve it.
This cart is specially designed to facilitate the organization of the workplace and maintain order.
This cart is specially designed to facilitate the organization of the workplace and maintain order.