In aeronautics, the most commonly used batteries are NiCd because:
Domanda 556, Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license
| They weigh less than lead-acid batteries. |
| They are cheaper than lead-acid batteries. |
| Their electrolyte is neither corrosive nor dangerous. |
| Their Output Voltage Is Less Constant Than Lead-acid Batteries. |
