This application is a simple countdown timer to keep track of charging batteries for RC helicopters, airplanes, or cars. If you sometimes forget about your charging batteries, this app will remind you. For quick selection, a pre-defined timer can be setup for each battery type (or charging current). The app can be used as a general countdown timer for almost anything -- clothes in the washer, popcorn in the microwave, or even a turkey in the oven.
RC Companion also features a fully customizable check-off list system which is great for tracking flight lists, stuff to take to the field, lists of questionable batteries, and things that need maintenance or fixing.