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How Airplanes Recharge Their Batteries During Flight

AME QUESTION PAPERbyAME QUESTION PAPER
December 2, 2022
in Blogs
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Batteries are an important part of most airplanes. Even if an airplane has combustion jet engines, it will likely feature a set of batteries. The Boeing 747, for instance, is equipped with two batteries. One of these batteries serves as the main source of power for the 747’s electronics, whereas the other battery serves as the auxiliary power unit (APU).

The specific type of batteries an airplane uses may vary. Large commercial airplanes typically use nickel-cadmium batteries. Small private airplanes, on the other hand, typically use lead-acid batteries. Regardless of the type, though, aviation batteries can only store so much electricity. Airplanes must recharge their batteries during flight to ensure that all of their electronics are able to receive power. How do airplanes recharge their batteries during flight exactly?

Generators Recharge Aviation Batteries

Most airplanes feature a generator that’s responsible for recharging their batteries. Airplane generators are similar to the alternators found in cars. They are designed to convert mechanical energy into electricity, which is then supplied to the batteries.

Most airplanes, of course, feature combustion jet engines. These engines are designed to burn a mixture of jet fuel and air within a combustion chamber, which in turn propels the airline forward. Combustion jet engines, however, are typically connected to a generator as well. As they burn the mixture of jet fuel and air, they’ll turn the generator to which they are connected. The generator will convert the mechanical energy produced by the combustion jet engines into electricity. This electricity is then used to recharge the airplane’s batteries.

Generators Supply Power

It’s important to note that most airplanes don’t rely on batteries to power their electronics during flight. When preparing to take off, airplanes will draw power from the batteries. When flying, on the other hand, they’ll draw power from the generator. The generator will supply power to the airplane’s electronics and its batteries.

The generator is the main source of power for most airplanes. It works in conjunction with the airplane’s combustion jet engines. The engines will provide the generator with mechanical energy, and the generator will convert this mechanical energy into electricity before sending it to the batteries and other electronics.

In Conclusion

Airplanes have batteries that power electronics when the generator isn’t running. As the batteries lose their charge, the generator will recharge them during flight. Generators work like automotive alternatives by converting mechanical energy into electricity.

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