1. According to transportation requirements, battery can not be fully charged. Please fully charge the battery once you receive it to activate the battery for maximum capacity.
2. In order to keep the highest power and longest using life, make sure to charge the battery at least every three months once time，if prepare storage for a long time make sure keep battery capacity above 80%.
3. Battery should be placed in a dry environment, far away from fire and water.
4. Make sure you buy the suitable battery or motor kits, please check the size and the model carefully before you buy it!
5. We will check every parcel before shipping, since we cannot control the state of transportation, please contact us in time when you receive damaged goods. We will handled it properly.
6. When the battery capacity is less than 20%, please charge in time to ensure the battery life.