4 sourced reports, with what to check before you buy. Each one links to the page it was reported on.
1 of these reports describe a fire, explosion or shock risk.
Worth checking
Gotrax Hoverfly hoverboard battery discharges unevenly — one side dies quickly
Verified buyer complaint on PissedConsumer reporting a Gotrax hoverboard battery defect: one side discharges very quickly, making the board unusable. The owner reports a $110 loss and requests a full refund. The complaint does not specify the exact model, but it is a Gotrax hoverboard.
What to check. If buying a Gotrax hoverboard, test battery balance early in the return window; a battery replacement can cost $110 or more.
Gotrax hoverboard battery discharges unevenly on one side, unusable
A verified buyer reports the battery on one side of a Gotrax hoverboard discharges very quickly, leaving the board unusable, with a stated loss of $110. The review does not name the specific model, so it applies to Gotrax hoverboards generally rather than the Hoverfly Plus specifically.
What to check. If buying a Gotrax hoverboard, budget for the possibility of an early battery failure; the owner reports a $110 loss and that the board cannot be used when one side's battery drains fast.
Gotrax Hoverfly Plus is UL 2272 certified for fire and electrical safety
Safety risk
The Gotrax Hoverfly Plus carries UL 2272 certification, the U.S. safety standard for hoverboard electrical drive trains and battery systems introduced after the 2016 hoverboard fire recalls. No CPSC recall or documented battery fire was found for this specific model in any of the 7 searches run. This certification provides baseline fire safety assurance, though the owner-reported battery defect above shows individual units can still develop problems.
What to check. UL 2272 certification is a meaningful safety baseline, but it does not guarantee every unit's battery will perform reliably; budget for potential battery issues.
Searches for a Gotrax Hoverfly Plus recall returned no CPSC recall notice for this model. The only hoverboard recalls found in CPSC-derived databases were for other brands (Razor Hovertrax and Swagway, both July 2016). This is a coverage finding: no documented recall exists for the Gotrax Hoverfly Plus in the sources I could reach.
What to check. As of this run, no CPSC recall is documented for the Gotrax Hoverfly Plus; the hoverboard recalls that do exist in the databases I found are for other brands from 2016.
These reports come from the pages linked under each item: owner forums, repair guides and workshops. They are not a diagnosis of any one unit, and a careful check of the one you are buying still applies.
Text from the Kriko Hoverboards & Self-Balancing Scooters catalog, version 0.1.1, under the CC-BY-SA-4.0 license.