GYS029521 Battery Trickle ChargerGYS029521 Battery Trickle Charger
GYS029521 Battery Trickle Charger supplied withGYS029521 Battery Trickle Charger supplied with
GYS029521 connector 1
GYS029521 connector 2
Product Code: GYS029521
Product Availability: Product in stock
Only 1 left

GYSFlash 4.12 12v

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


  • • 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 maintenance 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 ).

GYS029521 Battery Trickle Charger Process


  • • 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.

GYS029521 supplied with

Product Length: 0.0000 mm
Product Width: 0.0000 mm
Product Height: 0.0000 mm
Product Weight: 0.0000 kg
Product Packaging: 0.0000 kg