I tried placing health, battery and ammo boxes from the 'items' directory in the prop_static entity range, but when you load the map they don't appear. It's the same with things like explosive barrels. How do you put these in maps?
They are entities, like item_healthdispencer or something similar. i though the explosive barrels where prop_physics but if you want to do it properly i think you need a spawn template or something like that so they respawn.
just use item_healthvial for small health vials, and item_battery for the batteries, place 'em in your map and it works