GYS · Charging, Starting & Battery Support

Reliable power for charging, programming, and starting.

From batteryless supercapacitor boosters that never go flat on the shelf to GYSFLASH battery support for module programming, GYS covers the electrical side of the repair. Sold, supported and serviced by CRTE.

  • Batteryless boosters—no lithium to maintain
  • −40°F cold-start capable
  • Programming-grade battery support
  • CRTE sales, service & training

Two batteryless boosters. No battery to babysit.

Both units store energy in supercapacitors instead of a lithium pack, so they charge in about a minute from any running vehicle, survive deep cold, and deliver over a million start cycles without the fade, swelling or storage worries of battery boosters.

Compact · 12 V

Startronic 800

800A start · 1,400 A peak

Four pounds, starts gas and diesel engines up to 90 Ah, with Bypass and Glow modes for stubborn or diesel starts.

See the Startronic 800 →
Heavy-duty · 12 V

GYSCAP 680E

9,000A peak

Five 3,000 F capacitors for large-displacement and fleet starts. Recharges in under a minute from a running vehicle or a 12 V socket.

See the GYSCAP 680E →
Smart charging · Pb & LiFePO4

GYSFLASH 20.12/24 PL

20A @ 12 V · 15 A @ 24 V

Wall-mount smart charger for lead-acid and lithium batteries, with selectable current and automatic temperature compensation. The gateway to the GYSFLASH battery-support range.

See the GYSFLASH →

Startronic 800

The 4-pound booster that lives on the cart.

Batteryless Super-Capacitor Startronic 800 Booster
Ref. 026735800 A start / 1,400 A peakGas & diesel to 90 Ah

Batteryless Super-Capacitor Startronic 800 Booster

Charges in about 60 seconds from a running engine, two minutes from the residual charge in the dead battery, four minutes from a 12 V socket, or 40 minutes over USB—then starts gas and diesel engines up to 90 Ah. Bypass mode forces a start on a deeply discharged battery; Glow mode pre-heats diesel glow plugs. Works from −40°F to +149°F.

  • 800 A start · 1,400 A peak
  • 4 lb (1.8 kg)
  • Charge ~60 s from running vehicle
  • Bypass + Glow modes
  • −40°F to +149°F

Support for the Startronic 800

Clamps, cables and charge leads are stocked; setup and mode questions are one request away.

GYSCAP 680E

Fleet-grade starts, no battery inside.

GYScap 680E Batteryless Super Booster
Ref. 026773Up to 9,000 A peak5 × 3,000 F

GYScap 680E Batteryless Super Booster

Five 3,000-farad supercapacitors deliver up to 9,000 A peak for large-displacement gas, diesel and fleet vehicles. Recharges in under a minute from a running vehicle or a 12 V socket, rated for more than a million cycles, and works from −40°F to +140°F—so it is ready on the coldest morning of the year.

  • Up to 9,000 A peak
  • 5 × 3,000 F capacitors
  • >1,000,000 cycles
  • Recharge < 1 min
  • −40°F to +140°F

Support for the GYSCAP 680E

Replacement clamps, cables and charging leads are available; we can also advise on booster sizing for your fleet.

GYSFLASH Battery Support

Steady voltage for programming, diagnostics and ADAS calibration.

GYSFLASH 20.12/24 PL Smart Charger
GYSFLASH 20.12/24 PLPb / LiFePO412 V · 24 V

GYSFLASH 20.12/24 PL Smart Charger

A wall-mount smart charger for lead-acid and LiFePO4 batteries: 20 A at 12 V, 15 A at 24 V, with 7 / 15 / 20 A charge selection, an automatic external air-temperature sensor and a full multi-stage curve for each chemistry. Made in France. For module programming and long diagnostic sessions, ask us about the GYSFLASH battery-support range—we spec it to the makes you service.

  • 20 A @ 12 V · 15 A @ 24 V
  • Pb 15–300 Ah · LiFePO4 7–300 Ah
  • 7 / 15 / 20 A selectable
  • Auto temperature compensation
  • Made in France

Support for GYSFLASH chargers

Battery-support units for programming, current ratings, cable options—we will walk you through the choice.

Charging Accessories

Clamps, cables and leads to keep the boosters ready.

Charging & Starting Accessories
ClampsCables & leadsAdapters

Charging & Starting Accessories

Replacement clamps, extension cables, 12 V charge leads and adapters for the Startronic and GYSCAP boosters. Keep the cart stocked and the booster is never the reason a car sits.

  • Booster clamps & cables
  • 12 V charge leads
  • Adapters

Support for charging accessories

Send us the booster model and we will match the accessory.

Support Beyond the Equipment

CRTE stays involved after the purchase.

Use the same team for product information, technical assistance, account documents, and the next equipment decision.

Build the Right Package

Compare configurations or request a formal quote with this page already identified as your starting point.

Request GYS Pricing →
Looking for a different buying option? Explore Clearance, Open Box, and Pre-Owned Equipment.
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