i would reccomend a little more than that. my field box consists of a battery storage compartment, my wrench, power panel, clip on glow starter, emergency power-panel powered clip on glow ignitor, my fuel, my battery, and a bunch of stickers that say different stuff. i then in addition bring my tool box. this is my own personal field set which includes tools, (a full set of screw drivers, hex wrenches, socket set, box end wrenches, pliers, locking pliers etc) some spare parts, spare props, engine parts that i do not currently have installed, servos stuff (extensions, horns, screws, mounting hardware) control stuff (horns, pull-pull cable, crimps, pushrods, flexible pushrods, clevises both metal and nylon, bolts, nuts, locking nuts) bug spray, thread locker, several spinners, matches, solder, and a partridge in a pair tree. i can do anything but an engine or structural repair at the field, quickly and easily. that way i dont have to drive home for everything