The battery is charged but the unit isn't turning on. Remove the battery from the unit and examine the prongs and connection on both the battery and the unit to make sure they aren't damaged. Damaged prongs can cause the unit not to start up due to a faulty connection. Related articles I've pressed the switch button, then squeezed the handle, but my Snow Joe Ultra does not power on. What should I do? Is the battery fully charged? Electric Snow Blower General Troubleshooting for Battery and Charger Generator Troubleshooting