GYS GYSflash 4.12 Charger – (Uk)

Product Code: 29521

EAN = 3154020029521
029521 – DataSheet
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GYS GYSFLASH 4.12 Charger – (UK)

The GYS GYSFLASH 4.12 Charger is specifically designed to charge small vehicles’ 12V batteries such as small urban cars, motorbikes, jet-skis, go-karts or lawnmowers. Its 7 step intelligent charging curve provides an optimal charge and charges in half the time of a traditional charger.



• Designed for 12 V batteries from 1.2 to 70 Ah, or for maintenance charging up to a 130 Ah.
• Winter mode / start stop AGM batteries :
– Charge mode for cold weather (less than 5°C).
– Optimal mode for Start & Stop batteries (AGM).
• Cigarette lighter adaptor, charge the battery by connecting the Gysflash to the cigarette lighter of the vehicle (optional cable).
• Optimised maitenance charge, the charger can remain plugged in indefinitely during winter to maintain the health of the battery. «Auto Restart» feature so the charger can restart automatically with the right settings after a power cut.



• The 7 step charging curve ensures maximum battery performance and longevity.
• It recovers deeply discharged batteries >2V (SOS Recovery )



• Protection of the vehicle’s on-board electronics: protection against short circuits, polarity reversal and overcharging. Anti-spark technology.
• Automatic stand-by mode if the battery is disconnected.
• Integrated temperature probe to prevent internal electronics’ overheating.
• Simplified interface to prevent user error



• Ultra-compact design, light and portable.
• Quick / easy to connect waterproof connectors.
• Resistant to dust and water ingress (IP65 – not waterproof).
• Can be attached to a wall


See the attached datasheet for more information.


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GYSFLASH 12.12 – (UK)


Tested stock from GYS – A brand with professionals at the front of all their designs.

Created in 1964, GYS is a company with over 900 employees around the world. Built around investment, research and development, the company is also a major player in the design and manufacture of welding machines, battery chargers and car body repair equipment.


Research – With over 90 expert engineers, the research and development department creates designs for our products. In addition to this, in 2014, GYS opened a new research centre. As a result we continue to improve solutions and improvements. Furthermore, we listen to our customers. We then combine the results with our engineering department and can constantly offer new products to meet demands.

Integration – Visiting our site guides customers through a wide range of functions. This includes but is not limited to, electronic, mechanical, transformer, wiring, sheet metal and painting. The factory has an ISO 9001 certification allowing us to be responsive to customer needs too. Therefore, the continuous improvement in performance are the back bone for our existence. We consider it the guarantee for our future success.

Reach- Present in over 130 countries, GYS have their head office in France in addition to expanding its worldwide presence.

The Future – The market is ever-changing and the size of our company requires fast adaptation to new demands. For this reason, we chose our motto : Invest in the Future ! We are convinced that our future is closely linked to our customers’ future. For this reason, we do everything in our power to understand what is expected from us, to know what challenges are being faced and to see to how we can help to meet these challenges.

GYSFLASH 4.12 Charger