This section is there to explain all high level electronics used in the Crazyflie.

The battery we use is of the type Li-Po (Lithium-Polymer). They are currently the most popular battery type for R/C use. The Li-Po is hoverer not the safest chemistry and should be handled with care. Failing to do so could make it catch on fire. It is also sensitive to under/over charge, to high discharge/shortage, heat and more. What it is good at however compensates for all these shortcomings as it has among the best power to weight ratios and discharge currents. So to handle some of the shortcomings we use a PCM (Protection Circuit Module) that will prevent the user from under/over charge, to high discharge/shortage.