None. Prior to shipping your e-bike, completely remove or completely cover ALL hazmat shipping markings like these: 

Why? Hazmat stickers are required for freight e-bike shipments such as when a manufacturer or distributor ships many e-bikes together on a pallet, but these stickers are NOT required for single e-bike shipments. In fact, failure to remove Class 9 or UN 3480 markings on your single e-bike shipment will result in your e-bike being incorrectly considered a hazmat shipment, which means it will be stopped and tagged for disposal. If your bike is over 70 pounds, you must apply a heavy package sticker like the one below. **IMAGE** This helps alert carrier drivers, staff and others that special care should be taken for safe handling of your e-bike shipment.