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Small rectangular electronic fuse with XT30 and XT60 connectors and a selector switch

BFKK

BFKK VIFLY ShortSaver 2 Smoke Stopper Drone Accessory

SKU CH-S6TE-TXGFS

An electronic fuse that cuts power within milliseconds to stop short-circuits, with selectable 1A or 2A thresholds and XT30 and XT60 connectors

  • Stops short-circuits in 3 ms to protect sensitive electronics
  • Selectable 1 A or 2 A threshold matches build size
  • XT30 and XT60 connectors fit common battery packs
  • Built-in power switch simplifies receiver binding
  • Compact 42 × 30 × 10 mm body installs anywhere

Smart electronic fuse for drone builds

The BFKK VIFLY ShortSaver 2 is an electronic fuse that completely cuts current within 3 ms when a short-circuit appears and within 10 ms on over-current. It protects sensitive flight electronics from magic smoke during bench testing or maiden flights. The unit suits hobbyists who build or repair multirotors and want reliable, resettable protection without guessing.

Dual threshold selector for small or large builds

A hardware switch selects a 1 A or 2 A trip threshold, so the same stopper handles tiny whoop stacks and larger 5-inch quads. Both Amass XT30 and XT60 connectors are fitted on input and output, covering 2 S to 6 S battery voltages from 7 V to 25 V. The device stops current instead of merely limiting it, giving full isolation the moment a fault occurs.

Compact, fanless design with built-in power switch

Measuring 42 x 30 x 10 mm, the stopper adds negligible bulk to a test harness and runs silent because it has no moving parts. An integrated on-off switch makes receiver binding simpler by letting you cycle power without unplugging the battery. Power draw in normal use is essentially the load current plus a tiny quiescent overhead for the protection logic.

Highlights

  • Stops short-circuits in 3 ms to protect sensitive electronics
  • Selectable 1 A or 2 A threshold matches build size
  • XT30 and XT60 connectors fit common battery packs
  • Built-in power switch simplifies receiver binding
  • Compact 42 × 30 × 10 mm body installs anywhere

Specifications

No published specifications for this item yet.

Questions about this item

Will the 3 ms trip time protect the flight controller on my older 4S build if I plug the ShortSaver 2 in-line with the XT60 lead?

Yes, the device cuts power within 3 ms on a short-circuit and 10 ms on over-current, and it accepts 7–25 V input, which covers a 4S pack.

How can I confirm the unit is active after I solder it between the battery and the ESC?

Toggle the on-off switch; when the LED lights the fuse is live, and the 1 A or 2 A selector shows which threshold is armed.

Does the package include both XT30 and XT60 pigtails or do I need to buy the other connector separately?

Both Amass XT30 and XT60 connectors are supplied on the unit, so no extra cables are required.

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