Electric scooter, bike, and go kart fuses should always be replaced with the same Amp rating of fuse. The Voltage rating is not quite as important though. Some manufacturers will use 125V fuses while others will use 250V fuses. 125V fuses can be replaced with 250V fuses and they are interchangeable on electric scooters, electric bicycles, electric pocket bikes, electric go-karts, and all other types of small electric vehicles.