I’m needing more of a closed system that’s automated and all you need to do is change the battery every few months. So for our go green apple sauce making machine, it fits at the bottom of a large glass and there is kind of a water turbine head on a small generator (dc motor I guess). The consumer puts an apple in the glass and runs water from the faucet in the cup. The running water turns the water turbine and generates electricity to charge a battery. The battery is connected to the motor with a saw head and chops up the apple mixing it with the water.
Ok, so that’s the idea but you’re saying I’m wasting energy. So given that the water stream a lone probably isn’t enough to power the saw enough to cut through an apple, is my idea not possible? Should I skip thinking about the whole water power all together and just use the battery? If so, what would be the best kind of battery that can last several months powering a saw for a few seconds 2-3 times a day?