Both UL 2271 and UL 2272 feature rigorous construction requirements, as well as testing requirements that simulate conditions an e-scooter may encounter during normal use (and foreseeable misuse). Temperatures of the e-scooter electrical system are monitored during these tests, and the device will not pass if it exceeds certain limits, or if there is any indication of fire, explosion, rupture, electrolyte leakage, or electric shock hazard