{"product_id":"gysflash-51-48-cnt-fv-5m-cables","title":"GYSFLASH 51.48 CNT FV (5m Cables)","description":"\u003cp\u003e\u003cstrong\u003eGYSFLASH 51.48 CNT FV\u003c\/strong\u003e (ref. 072015) — GYS's 50 A connected charger and battery support unit for 6 to 48 V batteries. It holds a vehicle's battery at a stable voltage while the car is awake for diagnostics, and charges traction batteries on forklifts, scissor lifts and floor scrubbers with dedicated profiles.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDiagnostic support: 12, 16, 24 and 48 V vehicles, up to 50 A\u003c\/li\u003e\n\u003cli\u003eCharging: 12, 16, 24 and 48 V lead-acid or LFP lithium batteries, 10 to 600 Ah; voltage adjustable from 6 to 48 V for traction batteries\u003c\/li\u003e\n\u003cli\u003eShowroom mode, plus a tester for battery, starter and alternator\u003c\/li\u003e\n\u003cli\u003eFlexible Voltage: runs on any supply from 85 to 265 V\u003c\/li\u003e\n\u003cli\u003eUSB: add or change charging modes and profiles, export the charge history; SMC module socket\u003c\/li\u003e\n\u003cli\u003e5 m (16 ft) cables, made in France\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLow or upright:\u003c\/strong\u003e the 51.48 has a low case, 13 cm (5.1 in) high, that sits on a bench, a shelf or a cart. For a unit mounted on the wall or the lift, the \u003ca href=\"\/products\/gysflash-53-48-cnt-fv-5m-cables\"\u003eGYSFLASH 53.48 CNT FV\u003c\/a\u003e is the same 50 A, 6 to 48 V unit in an upright case, with its cables on a front reel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor Tesla:\u003c\/strong\u003e recent Teslas run a 16 V lithium-ion low-voltage battery (Model S and X since the 2021 refresh, Model 3 and Y from about 2021–2022), the Cybertruck runs a 48 V low-voltage system, and older models use 12 V. The 51.48 supports 12, 16, 24 and 48 V vehicles in diagnostic mode, so one unit keeps any Tesla's low-voltage system powered while the car is awake in the shop: diagnostics, camera and sensor calibrations, setting up replaced parts. For spot welding, follow Tesla's repair procedure and disconnect the low-voltage power first.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat the amps mean:\u003c\/strong\u003e while a car is awake in the shop for diagnostics or calibrations, its computers, fans and pumps keep drawing current. The support unit supplies that current at a set voltage, so the battery doesn't drain and the session isn't cut short by low voltage. The 51.48 gives up to 50 A from 6 to 24 V on 240 V (44 A on a 120 V outlet), and 50 A at 36–48 V on 240 V (about 25 A on a 120 V outlet). For vehicles that draw more, the \u003ca href=\"\/products\/gysflash-101-24-cnt-fv-5m-cables\"\u003eGYSFLASH 101.24\u003c\/a\u003e gives up to 100 A, up to 24 V.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's automatic, and what you set:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIt starts by itself.\u003c\/strong\u003e With Auto-Detect on, connect the clamps and the mode you selected starts after 3 seconds, no button to press. You can switch Auto-Detect off in the settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIt charges by itself.\u003c\/strong\u003e The charge runs start to finish without supervision (8 steps for lead, 9 for lithium): it checks the battery, brings back a deeply discharged one from 2 V, charges it, then holds it full, so it can stay connected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIt restarts by itself.\u003c\/strong\u003e After a power cut, Auto-Restart starts it again with the same settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou set the rest.\u003c\/strong\u003e Choose the mode (lead or lithium charge, Diag+, Showroom or Tester), then the battery type, its voltage (6 to 48 V; 16 V takes the extra step below) and its size in Ah; in Diag+, the voltage to hold and the maximum current. The unit does not pick the voltage for you: it checks the battery first and stops with an error code if it doesn't match, a 24 V battery in 12 V mode for example.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 V for Tesla takes one extra step.\u003c\/strong\u003e As delivered, Diag+ offers 12, 24 and 48 V. The 16 V setting comes with the Car Extended setup of GYS's free configurator (next point), loaded once from a USB stick.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional: GYS's free configurator.\u003c\/strong\u003e Most shops use the unit as delivered and never need it. The \u003ca href=\"https:\/\/app.gys.fr\/configurateurs\/gysflashCNT\/v2\" target=\"_blank\" rel=\"noopener\"\u003econfigurator\u003c\/a\u003e is a free GYS web page (no account, nothing to install) that makes a small settings file you load from a USB stick, to add extra modes: 16 V for Tesla, Change Battery (keeps the car powered while you swap its battery, so the modules keep their memory), start assist, an adjustable power supply or forklift-battery charging. \u003ca href=\"\/pages\/battery-support-units#configurator\"\u003eDo you need it? See how it works\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGenuine GYS equipment, supplied by GYSUSA — the official home of GYS in the USA. Questions about your vehicles? Call \u003ca href=\"tel:+14154195824\"\u003e(415) 419-5824\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eCompare every GYSFLASH unit, with its output on a 120 V outlet, on our \u003ca href=\"\/pages\/battery-support-units\"\u003ebattery support units\u003c\/a\u003e page.\u003c\/p\u003e","brand":"GYS","offers":[{"title":"Default Title","offer_id":67996009693316,"sku":"072015-GYS","price":1695.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/6543\/0916\/files\/072015-1.png?v=1793981648","url":"https:\/\/gysusa.com\/products\/gysflash-51-48-cnt-fv-5m-cables","provider":"GYS USA","version":"1.0","type":"link"}