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A battery stores energy through the potential difference between the anode and cathode of the battery. When there is no circuit the potential power is stored somewhat indefinitely (although it can degrade over time). Once a circuit is made, an electrolytic cell is created releasing energy as the chemical reaction occurs.

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Are lithium batteries and normal pencil batteries are same?

Lithium batteries are button type.


What type of cells is used in satellites to obtain energy from the sun?

Photovoltaic arrays are used( in conjunction with accumulators - batteries - to store energy when the satellite's solar panels are in shadow).


When you buy a battery how can you tell which one contains the most energy?

Batteries often have some kind of declaration of the Ampere-hours that they can store. Small batteries are often graded in milli Ampere hours [mAh]. The larger the number , the more power they store. If the battery does not declare its capacity then you will have to try it out in your application. Remember that different types (chemistry) of batteries are good for different load patterns. One type might be good for delivering a lot of power over a short time (starter motors in cars use lead-acid chemistry) another type such as running a clock or hearing aid uses very little power but over a very long time (silver oxide batteries are often used there).


What branch of science is batteries in?

Batteries come under Chemistry, which is a subset of Physics.


When using wooden pallets to store batteries place the pallets on sand or gravel true of false?

True. Placing wooden pallets on sand or gravel helps provide a stable and moisture-resistant base, which is important for the safe storage of batteries. This setup minimizes the risk of moisture absorption by the wood, which can potentially lead to degradation and safety hazards associated with battery storage.