GYSFLASH 157.12 CNT FV 150A Battery Support Unit & Charger – 089969

GYSFLASH 157.12 CNT FV 150A Professional Battery Support Unit – 089969

The GYSFLASH 157.12 CNT FV is a powerful professional 12V battery support unit, charger and diagnostic power supply, designed for modern vehicle workshops carrying out ECU programming, vehicle diagnostics, software updates and battery maintenance.

Delivering up to 150A output, the GYSFLASH 157.12 CNT FV provides the stable voltage supply required when working on vehicles where voltage fluctuations during diagnostic or programming procedures could cause problems. GYS specifically designed the unit for intensive diagnostic and reprogramming applications, with continuous performance of 135A at 230V and 100A at 110V.

Ideal for ECU Programming & Vehicle Diagnostics

Modern vehicles can draw significant current during diagnostic procedures, ECU coding and software updates. The GYSFLASH 157.12 CNT FV's Diagnostic Mode supports the vehicle's 12V electrical system during these procedures, helping maintain a stable supply and protect sensitive onboard electronics.

Its high duty cycle makes it particularly suitable for professional garages, diagnostic specialists, dealerships, auto electricians and vehicle programming workshops.

More Than Just a Battery Support Unit

The GYSFLASH 157.12 CNT FV includes several operating modes:

• Diagnostic Mode – provides battery support during diagnostics, ECU programming and vehicle reprogramming.
• Charge Mode – suitable for 12V lead-acid and lithium batteries from 20Ah to 1800Ah.
• Showroom Mode – compensates for electrical consumption when vehicle accessories are being operated during demonstrations.
• Tester Mode – checks battery charge condition along with the vehicle's charging and starting systems.

Connected & Fully Customisable

The CNT platform allows the charger to be configured for different workshop requirements. Charging modes can be added, removed or modified, while custom charging curves can also be incorporated.

GYS provides 12 downloadable charging profiles for specific applications. Usage history and charging data can also be saved to a USB drive and imported into spreadsheet software for further analysis.

Additional modules such as printers and status lights can be connected, while remote BSU operation is available using a QR code and compatible wireless scanner.

Lead-Acid & Lithium Battery Charging

The GYSFLASH 157.12 CNT FV supports a wide range of battery technologies, including:

Lead-acid: AGM, GEL, flooded and calcium batteries.

Lithium: standard lithium-ion and LiFePO4 (Lithium Iron Phosphate) batteries.

Dedicated 8-step lead-acid and 9-step LiFePO4 charging curves provide safe unattended charging, while the automatic SOS Recovery function can recover deeply discharged batteries with more than 1V remaining.

Flexible Voltage Technology

Thanks to GYS FV – Flexible Voltage technology, the unit can operate from an AC power supply between 85V and 265V, making it particularly versatile in professional workshop environments.

Additional features include Auto-Detect, which can automatically begin charging when a battery is connected, and Auto-Restart, which restores the previous settings and automatically resumes operation following a power interruption. Cable testing and calibration functionality is also incorporated.

Built for Professional Workshop Use

The GYSFLASH 157.12 CNT FV features a durable enclosure with shock and vibration-absorbing feet. Its low-profile 13.4cm-high design allows the unit to be positioned underneath many vehicles, while the enclosure carries an IP40 rating.

An integrated temperature sensor helps prevent overheating, while the system is designed to protect vehicle electronics and reduce the risk of operator errors.

Key Features

• Professional 12V battery support unit and charger
• Up to 150A maximum output
• 135A continuous output at 230V
• Designed for ECU programming and diagnostic work
• Suitable for 20–1800Ah batteries
• Lead-acid and lithium compatible
• AGM, GEL, flooded and calcium battery support
• Li-ion and LiFePO4 compatible
• Diagnostic, Charge, Showroom and Tester modes
• Customisable charging configurations
• USB charging history and data export
• 85–265V Flexible Voltage input
• Auto-Detect and Auto-Restart functions
• Cable testing and calibration
• Ultra-bright multilingual display with 19 languages
• IP40 enclosure
• Low-profile professional workshop design
• Supplied with 5m, 25mm² clamp leads
• Made in France
• GYS Part Number: 089969

The supplied 5m clamp leads and the main electrical specifications are shown in the technical specification section of the GYS data sheet.

Why Buy Your GYSFLASH 157.12 CNT FV from AutoAdvisor?

When purchasing professional workshop equipment, choosing the right unit for the application is just as important as the equipment itself. AutoAdvisor specialises in professional automotive workshop, diagnostic and battery maintenance equipment, helping customers select products suited to their requirements.

If you're unsure whether the GYSFLASH 157.12 CNT FV 089969 is the right battery support unit for your workshop, contact us before ordering and we'll be happy to help.

Ideal For

Professional workshops, main dealers, independent garages, diagnostic technicians, auto electricians, vehicle programming specialists, ECU remapping businesses, bodyshops and workshops regularly carrying out software updates or diagnostic procedures on modern vehicles.

Manufacturer: GYS
Model: GYSFLASH 157.12 CNT FV
GYS Reference: 089969
Voltage: 12V
Maximum Output: 150A
Battery Capacity: 20–1800Ah
Application: Battery support, diagnostics, ECU programming, charging, showroom support and battery/system testing.