On the DJI F330 Specs Wiki (the photo is linked to it), the recommended batter is a 3S-4S Lithium Polymer (LiPo) battery. The battery I use is a 3300 mAh Turnigy Nano-Tech 3.3, which you can buy at Hobbyking.com through this link: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=11949.
Quick Tip: This battery comes with a JST-XH connector. I used an XT60 connector for the battery connections on my quadcopter. You can buy bags of XT60 Connectors through these links: http://www.hobbyking.com/hobbyking/store/__42554__Female_XT60_connectors_5pcs_bag_GENUINE_USA_warehouse_.html (female) & http://www.hobbyking.com/hobbyking/store/__43759__Male_XT60_connectors_5pcs_bag_GENUINE_USA_warehouse_.html (male).
HobbyKing also has a nifty “battery finder” (for LiPo batteries) where you can input the type of battery and dimensions and then it finds batteries that are in stock that fit these specs. (You can access it through this link:http://www.hobbyking.com/hobbyking/store/lithium_polymer_battery_configuration.asp)
