{"title":"GYS","description":"\u003ch1\u003e\u003cspan\u003eGYS Battery Support Units\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKeep your vehicle’s electrical systems powered and your workshop running smoothly with our range of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eGYS Battery Support Units\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Designed for professional automotive use, GYS battery support units provide reliable power assistance during diagnostics, servicing, ECU programming and vehicle maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhether you’re working in a busy workshop or carrying out specialist automotive repairs, GYS battery support units help maintain a stable power supply, supporting efficient and reliable vehicle servicing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eExplore our collection of GYS battery support units and find the right solution for your workshop’s requirements. Built with quality, performance and professional use in mind, GYS offers trusted battery support solutions for modern vehicles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eShop GYS Battery Support Units today\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and ensure your workshop has the power support it needs for professional automotive servicing.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"gysflash-30-12-pl-battery-charger-uk","title":"GYSFLASH 30.12 PL Battery Charger (UK)","description":"\u003cp\u003eThe \u003cstrong\u003eGYSFLASH 30.12 PL (UK)\u003c\/strong\u003e is a professional multi-function 30A battery charger designed for workshops and auto electricians. Supporting both \u003cstrong\u003e12V Lead-Acid and Lithium Iron Phosphate (LiFePO4)\u003c\/strong\u003e batteries, it combines intelligent charging technology, automatic temperature compensation and advanced cell balancing into a compact, portable unit built for daily professional use.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e30A constant output\u003c\/strong\u003e — 100% duty cycle at 40°C for sustained professional use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual battery chemistry support\u003c\/strong\u003e — Pb mode for 12V Lead-Acid (15–375Ah) and LiFePO4 mode for Lithium (7–375Ah)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 selectable charging currents\u003c\/strong\u003e — 7A, 15A and 30A for flexible application across battery sizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShowroom mode\u003c\/strong\u003e — 30A current compensation to power vehicle electrical accessories during demonstrations without draining the battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic temperature compensation\u003c\/strong\u003e — high-sensitivity sensor adjusts charging parameters based on ambient temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOS Recovery\u003c\/strong\u003e — recovers deeply discharged batteries that standard chargers cannot detect\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUVP Wake-up function\u003c\/strong\u003e — reactivates batteries locked in protection mode after deep discharge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8-step intelligent charging curve\u003c\/strong\u003e (Lithium) — fully automatic for safe, optimised Lithium charging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEBS technology\u003c\/strong\u003e — ensures perfect cell balancing across Lithium battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull safety protection\u003c\/strong\u003e — short circuit, reverse polarity and overcharge protection as standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and portable\u003c\/strong\u003e — lightweight design ideal for workshop bench or on-site use\u003c\/li\u003e\n\u003cli\u003eSupplied with \u003cstrong\u003eclamps and connection terminals\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e230V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e7A \/ 15A \/ 30A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDuty Cycle\u003c\/td\u003e\n\u003ctd\u003e30A at 100% (40°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Voltage\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Types\u003c\/td\u003e\n\u003ctd\u003eLead-Acid (Pb), Lithium Iron Phosphate (LiFePO4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePb Battery Range\u003c\/td\u003e\n\u003ctd\u003e15–375Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLiFePO4 Battery Range\u003c\/td\u003e\n\u003ctd\u003e7–375Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e190 × 190 × 73mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.9kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied With\u003c\/td\u003e\n\u003ctd\u003eClamps and connection terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCharging Modes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePb Mode\u003c\/strong\u003e — intelligent multi-step charging for 12V Lead-Acid batteries from 15 to 375Ah\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 Mode\u003c\/strong\u003e — 8-step automatic charging curve with EBS cell balancing for Lithium Iron Phosphate batteries from 7 to 375Ah\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShowroom Mode\u003c\/strong\u003e — 30A current compensation for powering vehicle accessories during demonstrations without battery drain\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eCan the GYSFLASH 30.12 PL charge Lithium batteries?\u003c\/h3\u003e\n\u003cp\u003eYes — it supports Lithium Iron Phosphate (LiFePO4) batteries from 7 to 375Ah using an 8-step automatic charging curve and EBS cell balancing technology.\u003c\/p\u003e\n\u003ch3\u003eWhat is SOS Recovery?\u003c\/h3\u003e\n\u003cp\u003eSOS Recovery allows the charger to detect and recover deeply discharged batteries that have fallen below the threshold standard chargers can detect, preventing unnecessary battery replacement.\u003c\/p\u003e\n\u003ch3\u003eWhat is the UVP Wake-up function?\u003c\/h3\u003e\n\u003cp\u003eUVP Wake-up reactivates batteries that have entered protection mode following deep discharge, restoring them to a chargeable state.\u003c\/p\u003e\n\u003ch3\u003eIs it suitable for showroom or demonstration use?\u003c\/h3\u003e\n\u003cp\u003eYes — Showroom mode delivers 30A current compensation to power vehicle electrical systems during demonstrations without drawing from the battery.\u003c\/p\u003e\n\u003ch2\u003eUK-Based Support \u0026amp; Genuine Warranty Protection\u003c\/h2\u003e\n\u003cp\u003eWhen you buy from Dunns Automotive, you're buying from an authorised GYS UK distributor. Every product comes with full UK warranty coverage and support from our UK-based team.\u003c\/p\u003e","brand":"GYS","offers":[{"title":"Default Title","offer_id":53929090089288,"sku":null,"price":299.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/4437\/9464\/files\/GYS_GYSFLASH_30.12_PL_30A.png?v=1788125749"},{"product_id":"gysflash-100-12-battery-charger","title":"GYSFLASH 100.12 Battery Charger","description":"\u003cdiv style=\"background-color: #d4edda; border-left: 4px solid #28a745; padding: 12px 16px; margin-bottom: 16px;\"\u003e\u003cstrong\u003e✔ Supplied with 2.5 m or 5 m cables — select your preferred cable length\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eGYSFLASH 100.12\u003c\/strong\u003e is a high-performance 100A professional battery charger with inverter technology, designed for workshops, dealerships and exhibition centres. Delivering perfectly stable 12V output for both \u003cstrong\u003eLead-Acid and Lithium Iron Phosphate (LFP)\u003c\/strong\u003e batteries, it maintains battery health during showroom demonstrations, supports vehicles undergoing diagnostics, and provides the advanced charging cycles demanded by the latest vehicle platforms.\u003c\/p\u003e\n\u003ch2\u003e5 Operating Modes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge\u003c\/strong\u003e — charges 12V Lead-Acid or Lithium (LFP) batteries from 5 to 1,200Ah with a 7-step (Lead) or 8-step (Lithium) automatic charging curve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShowroom\u003c\/strong\u003e — compensates current when using a demonstration vehicle’s electrical resources, while optimising the battery charging process simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostic\u003c\/strong\u003e — supports 12V vehicle batteries during workshop diagnostic sessions, up to 100A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Change\u003c\/strong\u003e — compensates for vehicle electrical requirements to prevent loss of memory and data during battery replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply\u003c\/strong\u003e — operates as a high-power stabilised power supply with adjustable regulated voltage and maximum current output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100A inverter technology\u003c\/strong\u003e — stable, high-output power for demanding professional applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide battery range\u003c\/strong\u003e — supports Lead-Acid (Gel, AGM, Liquid, Calcium) and Lithium LFP batteries from 5 to 1,200Ah\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOS Recovery\u003c\/strong\u003e — automatically recovers deeply discharged batteries above 2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto Restart\u003c\/strong\u003e — memorises settings after a power cut and restarts automatically\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpert charging curve\u003c\/strong\u003e — fully configurable parameters for advanced users alongside the simplified Easy charging profile\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable control \u0026amp; calibration\u003c\/strong\u003e — accommodates cables up to 8m and 16mm²\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLockable operation\u003c\/strong\u003e — prevents accidental or improper use; ideal for garages and exhibition centres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntuitive interface\u003c\/strong\u003e — available in 22 languages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow profile design (10.5cm)\u003c\/strong\u003e — can be positioned under a vehicle for space-efficient workshop use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilent, dustproof operation\u003c\/strong\u003e — no external ventilation required, reducing noise and dust ingress\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable housing\u003c\/strong\u003e — shock and vibration absorbing feet for workshop durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eUltra-Safe Protection\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eShort circuit, reverse polarity and overload protection\u003c\/li\u003e\n\u003cli\u003eSpark prevention system\u003c\/li\u003e\n\u003cli\u003eReplaceable fuse protecting against operating errors\u003c\/li\u003e\n\u003cli\u003eInternal temperature sensor preventing electronics overheating\u003c\/li\u003e\n\u003cli\u003eIP67 rated (with optional wall-mounted shelf)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Current\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Voltage\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Types\u003c\/td\u003e\n\u003ctd\u003eLead-Acid (Gel, AGM, Liquid, Calcium), Lithium LFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Capacity Range\u003c\/td\u003e\n\u003ctd\u003e5–1,200Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging Curve (Lead)\u003c\/td\u003e\n\u003ctd\u003e7-step automatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging Curve (Lithium)\u003c\/td\u003e\n\u003ctd\u003e8-step automatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSOS Recovery\u003c\/td\u003e\n\u003ctd\u003eBatteries \u0026gt;2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Compatibility\u003c\/td\u003e\n\u003ctd\u003eUp to 8m \/ 16mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e10.5cm (low profile)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLanguages\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e230V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied With\u003c\/td\u003e\n\u003ctd\u003e2.5m or 5m cables (16mm²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eCan the GYSFLASH 100.12 be used during vehicle diagnostics?\u003c\/h3\u003e\n\u003cp\u003eYes — Diagnostic mode supports the vehicle’s 12V battery with up to 100A during workshop diagnostic sessions, ensuring stable voltage throughout.\u003c\/p\u003e\n\u003ch3\u003eWhat happens if there is a power cut during charging?\u003c\/h3\u003e\n\u003cp\u003eThe Auto Restart function memorises the charger’s settings and restarts automatically once power is restored, with no intervention required.\u003c\/p\u003e\n\u003ch3\u003eCan I define my own charging parameters?\u003c\/h3\u003e\n\u003cp\u003eYes — the Expert charging curve allows full customisation of charging parameters, alongside the simplified Easy profile for standard Lead-Acid batteries.\u003c\/p\u003e\n\u003ch3\u003eIs the GYSFLASH 100.12 suitable for showroom environments?\u003c\/h3\u003e\n\u003cp\u003eYes — Showroom mode compensates current during demonstration vehicle use, the lockable operation prevents accidental misuse, and the silent fanless design keeps noise levels low.\u003c\/p\u003e\n\u003ch2\u003eUK-Based Support \u0026amp; Genuine Warranty Protection\u003c\/h2\u003e\n\u003cp\u003eWhen you buy from Dunns Automotive, you’re buying from an authorised GYS UK distributor. Every product comes with full UK warranty coverage and support from our UK-based team.\u003c\/p\u003e","brand":"GYS","offers":[{"title":"2.5 m cables","offer_id":53929134915912,"sku":null,"price":764.0,"currency_code":"GBP","in_stock":false},{"title":"5 m cables","offer_id":53929134948680,"sku":null,"price":778.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/4437\/9464\/files\/GYS_100.12_BSU_1.png?v=1788126133"},{"product_id":"gysflash-121-12-cnt-fv-battery-charger","title":"GYSFLASH 121.12 CNT FV Battery Charger","description":"\u003cdiv style=\"background-color:#d4edda;border-left:4px solid #28a745;padding:12px 16px;margin-bottom:16px;\"\u003e\u003cstrong\u003e✔ Supplied with 5 m cables\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eGYSFLASH 121.12 CNT FV\u003c\/strong\u003e is a 120A high-power connected battery charger with inverter technology, designed for professional workshops, dealerships and exhibition centres. Fully USB-customisable and featuring Flexible Voltage (FV) operation between 85–265V, it delivers perfectly stable 12V output for \u003cstrong\u003eLead-Acid and Lithium Iron Phosphate (LFP)\u003c\/strong\u003e batteries across all stages of diagnostics, charging and showroom use — with up to 12 configurable charging profiles and advanced data logging via USB.\u003c\/p\u003e\n\n\u003ch2\u003e4 Operating Modes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge\u003c\/strong\u003e — charges 12V Lead-Acid or Lithium (LFP) batteries from 5 to 1,500Ah with an 8-step curve (Lead) or 9-step autonomous curve (Lithium LFP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostic\u003c\/strong\u003e — supports 12V vehicle batteries during workshop diagnostic sessions, up to 120A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShowroom\u003c\/strong\u003e — provides current compensation when using a demonstration vehicle’s electrical accessories, while managing optimal battery charging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTester\u003c\/strong\u003e — checks battery voltage and evaluates the starting system (starter and battery) and alternator condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eUSB Connectivity \u0026amp; Advanced Functions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% USB customisable\u003c\/strong\u003e — add, delete or modify charging modes and profiles via USB key\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImport configuration files\u003c\/strong\u003e — load predefined profiles perfectly adapted to specific charging applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData logging\u003c\/strong\u003e — save charging history and data to a USB key, easily opened in a spreadsheet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSMC (Smart Module Connector)\u003c\/strong\u003e — connect additional modules such as a printer or barcode reader\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 12 charging profiles\u003c\/strong\u003e — including Easy mode for simplified charging of all Lead-Acid batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Voltage (FV)\u003c\/strong\u003e — operates on supply voltage from 85 to 265V for worldwide compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Detect\u003c\/strong\u003e — automatically starts the charging process when a battery is connected\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Restart\u003c\/strong\u003e — saves device memory and restarts automatically after a power failure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOS Recovery\u003c\/strong\u003e — recovers deeply discharged batteries above 2V automatically\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLockable operation\u003c\/strong\u003e — prevents improper handling or misuse; ideal for workshops and showroom vehicles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable inspection \u0026amp; calibration\u003c\/strong\u003e — ensures reliable operation across extended cable runs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow profile (13cm height)\u003c\/strong\u003e — fits underneath a vehicle for space-efficient workshop use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable carry case\u003c\/strong\u003e — with shock and vibration absorbing pads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eUltra-Safe Protection\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eShort circuit, reverse polarity and overcharge protection\u003c\/li\u003e\n\u003cli\u003eSpark prevention system\u003c\/li\u003e\n\u003cli\u003eInterchangeable fuse protecting against misuse\u003c\/li\u003e\n\u003cli\u003eInternal temperature sensor preventing electronics overheating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Current\u003c\/td\u003e\n\u003ctd\u003e120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Voltage\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Types\u003c\/td\u003e\n\u003ctd\u003eLead-Acid (Gel, AGM, Liquid, Calcium), Lithium LFP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Capacity Range\u003c\/td\u003e\n\u003ctd\u003e5–1,500Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging Curve (Lead)\u003c\/td\u003e\n\u003ctd\u003e8-step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging Curve (Lithium)\u003c\/td\u003e\n\u003ctd\u003e9-step autonomous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging Profiles\u003c\/td\u003e\n\u003ctd\u003eUp to 12 (including Easy mode)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSOS Recovery\u003c\/td\u003e\n\u003ctd\u003eBatteries \u0026gt;2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (FV)\u003c\/td\u003e\n\u003ctd\u003e85–265V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity\u003c\/td\u003e\n\u003ctd\u003eUSB key, SMC module socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e13cm (low profile)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied With\u003c\/td\u003e\n\u003ctd\u003e5m cables, durable carry case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat does FV (Flexible Voltage) mean?\u003c\/h3\u003e\n\u003cp\u003eFV means the charger operates on any supply voltage between 85 and 265V AC, making it compatible with power supplies worldwide without any manual adjustment.\u003c\/p\u003e\n\u003ch3\u003eHow do I customise charging profiles?\u003c\/h3\u003e\n\u003cp\u003eProfiles are managed via USB key — import predefined configuration files or build your own, then load them directly onto the charger. Up to 12 profiles can be stored simultaneously.\u003c\/p\u003e\n\u003ch3\u003eCan I save and review charging data?\u003c\/h3\u003e\n\u003cp\u003eYes — the GYSFLASH 121.12 CNT FV logs charging history and data to a USB key, which can be opened directly in a spreadsheet for record-keeping or analysis.\u003c\/p\u003e\n\u003ch3\u003eWhat is the Tester mode?\u003c\/h3\u003e\n\u003cp\u003eTester mode allows you to check battery voltage and evaluate the condition of the starting system (starter motor and battery) as well as the vehicle’s alternator, without requiring a separate diagnostic tool.\u003c\/p\u003e\n\n\u003ch2\u003eUK-Based Support \u0026amp; Genuine Warranty Protection\u003c\/h2\u003e\n\u003cp\u003eWhen you buy from Dunns Automotive, you’re buying from an authorised UK distributor. Every product comes with full UK warranty coverage and support from our UK-based team — no grey imports, no overseas delays.\u003c\/p\u003e","brand":"GYS","offers":[{"title":"Default Title","offer_id":53929182232904,"sku":null,"price":1051.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/4437\/9464\/files\/GYS_BSU_GYSFLASH_121.12_CNT_FV_120A.png?v=1788125618"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/4437\/9464\/collections\/images.png?v=1789470588","url":"https:\/\/adasequipment.co.uk\/collections\/gys.oembed","provider":"Dunns Automotive | ADAS Equipment","version":"1.0","type":"link"}