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Page organisation in this revision
Page type
Technical article
Subject
Power Supplies
Parent
Section level
Applies to
No ECU-specific applicability
Tool groups
None
Manufacturers
None

Changes from revision 1 to revision 1

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← Workshop power supplies

GYS, in France, builds chargers and battery support units. The GYSFLASH range is the equipment sold for keeping a vehicle battery at a stable voltage during diagnostics, including control-unit reprogramming. It is not a programmer.

What a GYSFLASH does

GYS describes these units as inverter power supplies with several modes. Published descriptions include charging, a diagnostic or battery-support mode, a showroom mode, and, on some models, a battery-change mode that holds supply while the battery is replaced, plus an expert power-supply mode with adjustable voltage and current. Diagnostic voltage on the documented 12 V modes can be set within the range GYS publishes for that model, commonly between 12 V and 14.8 V.

Current rating depends on the model. GYS describes the GYSFLASH 50.12 FV as a 50 A, 12 V unit for mains supplies from 85 V to 265 V. The GYSFLASH PRO catalogue describes units that can supply up to 150 A continuously during diagnostic work. Chiptuningshop sells workshop examples including the 100.12, and states that the 100.12 listing is for a 220–240 V mains supply and is not suitable for the USA. Check the data sheet for the exact unit before buying or connecting it.

Use with a programming tool

Connect the support unit as its manual describes, usually at the battery, and let it settle before a read or write. The programmer, the interface and the control unit still have to match. A support unit does not choose a protocol or correct a file.

Sources

GYS: battery support unit catalogueGYS: GYSFLASH 50.12 FV data sheetChiptuningshop: GYSFLASH 100.12 listing

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Revision 1: GYS battery support units

← Workshop power supplies

GYS, in France, builds chargers and battery support units. The GYSFLASH range is the equipment sold for keeping a vehicle battery at a stable voltage during diagnostics, including control-unit reprogramming. It is not a programmer.

What a GYSFLASH does

GYS describes these units as inverter power supplies with several modes. Published descriptions include charging, a diagnostic or battery-support mode, a showroom mode, and, on some models, a battery-change mode that holds supply while the battery is replaced, plus an expert power-supply mode with adjustable voltage and current. Diagnostic voltage on the documented 12 V modes can be set within the range GYS publishes for that model, commonly between 12 V and 14.8 V.

Current rating depends on the model. GYS describes the GYSFLASH 50.12 FV as a 50 A, 12 V unit for mains supplies from 85 V to 265 V. The GYSFLASH PRO catalogue describes units that can supply up to 150 A continuously during diagnostic work. Chiptuningshop sells workshop examples including the 100.12, and states that the 100.12 listing is for a 220–240 V mains supply and is not suitable for the USA. Check the data sheet for the exact unit before buying or connecting it.

Use with a programming tool

Connect the support unit as its manual describes, usually at the battery, and let it settle before a read or write. The programmer, the interface and the control unit still have to match. A support unit does not choose a protocol or correct a file.

Sources

Revision 1: GYS battery support units

← Workshop power supplies

GYS, in France, builds chargers and battery support units. The GYSFLASH range is the equipment sold for keeping a vehicle battery at a stable voltage during diagnostics, including control-unit reprogramming. It is not a programmer.

What a GYSFLASH does

GYS describes these units as inverter power supplies with several modes. Published descriptions include charging, a diagnostic or battery-support mode, a showroom mode, and, on some models, a battery-change mode that holds supply while the battery is replaced, plus an expert power-supply mode with adjustable voltage and current. Diagnostic voltage on the documented 12 V modes can be set within the range GYS publishes for that model, commonly between 12 V and 14.8 V.

Current rating depends on the model. GYS describes the GYSFLASH 50.12 FV as a 50 A, 12 V unit for mains supplies from 85 V to 265 V. The GYSFLASH PRO catalogue describes units that can supply up to 150 A continuously during diagnostic work. Chiptuningshop sells workshop examples including the 100.12, and states that the 100.12 listing is for a 220–240 V mains supply and is not suitable for the USA. Check the data sheet for the exact unit before buying or connecting it.

Use with a programming tool

Connect the support unit as its manual describes, usually at the battery, and let it settle before a read or write. The programmer, the interface and the control unit still have to match. A support unit does not choose a protocol or correct a file.

Sources