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Nickel-hydrogen batteries Light weight and high gravometric energy density.
High cycle life (50,000 cycles) and calendar life (15 years)
Can be deep discharged.
Abuse tolerant.
Maintenance free.
Because Hydrogen is generated during charging and absorbed
during discharging, the gas pressure can be used as a simple measure of the State of Charge (SOC)
Insulation:The insulation within the satellite keeps the important parts of the satellite cool when close to the sun.
The Aperture door is a thin door between the brain of the satellite and space.
Each Nickel-hydrogen battery is filled with around 1200 psi of pressurized hydrogen and nickel molecules.
The Anatomy of a satellite
Solar arrays are panels that collect data from the sun and other nearby objects. Each panel is made out of thermal micro-censors that pick up radiation and heat signatures. Every panel can see every type of light and heat there is.
Within a satellite there are many different components such as : Aperture door, insulation, Astronaut handrails, Nickel-hydrogen batteries, Solar arrays, Antennae. And many other devices .
The Antennae plays a key role in the satellite's life. Without the Antennae there can be no communication between us and the satellite.
All these objects have different purposes and perform different operations but with out one none of the others would be able to perform their duties and we wouldn't have all the information that we have today.
citations
https://www.nasa.gov/
The insulation used on a satellite is a different type because of extreme heat that it encounters from passing solar rays. This keeps the Nickel-hydrogen batteries at a cool temp that way they don't explode.
The Solar arrays are small panels on the sides of the satellite that gather data and send it to a antenna which sends it to a receiver back on Earth.
https://www.wikipedia.org/