Hey everyone.
The rocketry team at my university is thinking of using a PixHawk as the flight computer for our rocket. We are building this rocket ourselves witha hybrid engine. The expected burntime is 5 seconds and maximum altitude around 1050 meters. We will not be using the PixHawk for anything except a flight computer and telemetry (no wings, or trajectory adjustment of any sort). The battery needs to be with a capacity of at least 5Wh and under 50 grams. We were thinking then of lithium ion batteries. What voltage/current should the battery be/work at if supplying power to a Pixhawk, telemetry device, and a few additional sensors is its only purpose?