4. Discussion

Key Findings

We had found that over a time span of around 20 hours, the Voltage of both batteries stayed over 3.0V which is enough to power the LED bulbs. The batteries can be charged up very fast.

Explanation of Key Findings
This may have been due to the high mAh output from the hydro generators, thus charging the batteries in a very short period of time. Using a source of water that does not give mediocre water pressure and relies on the gravitation pull can not over come the resistance of the turbine,so using low water pressures will render our system useless.
Batteries without 3.0V was not enough to power up the LED lights as the resistance would be too much for anything below 3.0V.

Evaluation of Engineering Goals
We were able to make the hydroelectric power generation for the bathroom. It uses cheap materials other than for the hydro generators themselves, so it can be implemented in almost all places around the world. It uses a battery switching system which can be used in many other products. It can generate enough energy to light up the lights in a short period of time and this can reduce electricity bills.

Areas of Improvement
When planning on what to do on the box, we should have taken into consideration more minor details. This would allow less time spent on figuring out newer solutions and more time to be used on the physical model and testing it.

We should have used batteries that were more alike and not 1 with a fault in it. When connecting the wires together, we could have done it more systematically as it would be easier to connect the wires needed properly.

When collecting the data for the batteries, we will run it a few times to get a more fair result.We would charge the batteries starting from the same voltage in each trial, using the same batteries
and charging them for the same amount of time.

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