UL 2272 standard ,Website:http://www.sz2wheels.com, electrical systems for self balancing scootersPlastic materials enclosure:1)94 V-1 flame rating2)Minimun RTI with impact of 80°C3)UV and water exposure rating4)Minimum IP ratings: IPX4metallic Material: corrosion resistantElectrical insulation material: pass UL 746CBattery pack:Charge:1)Over charge protection2)Over temperature protection3)Over current protectionDischarge:1)Over discharge protection2)Over temperature protection3)Over current protectionMotor:Over current protectionOver load protectionMotor locked rotor protection when motor win
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