We usually use carton. Packaging can also be customized according to customer requirements.
1. Small order: by express delivery (UPS, DHL, Fedex, TNT, etc)
2. Large order: by air, by sea
Do not submerge the battery in the water.
Do not mix fresh batteries with used batteries.
Do not mix batteries with metal stuff together.
Do not insert batteries with the (+) and (-) reversed.
Do not disassemble, dispose in fire, heat or short curcuit.
Do not put the battery in a charger or equipment with wrong terminals connected.