I've stated this before, people don't really care about these cells if they don't power something like a LED. I've been reaching for this goal for some time now and I'm starting to see that this is not a easy goal. You see the same metal water battery can't easily be put in series. When put in series the cells don't really work well together to increase voltage. Its like each cell don't won't to join other cells and when they do they act crazy. Some cells will even switch polarities, and when this happens its like that cell becomes a voltage resistor which lowers the total voltage.
I really want to light a LED, but hooking the same metal water battery in series will not work at this time. Maybe in the future I'll figure it out but now its not happening. But this will not stop me from lighting an LED, as I have come up with a clever way to light one up with the energy I get from the cells. I'm going to play by the rules of the same metal water batteries where they won't to be alone. I hook each individual cell up to a capacitor and have it charge that capacitor. Once the capacitor is full I'll hook those capacitors in series and thus have a LED light up with the energy I get from the same metal water battery.
I'm doing the testing now for charging capacitors and I'm glad to report that the cells do charge the capacitor. I'm charging a 22,000uf capacitor now and it is taking some time but it is charging it and thats saying something because that is a nice size capacitor. In about 14 minutes one cell has charge one 22,000uf capacitor from 14.7mV to 20.2mV. Like I said the charging is slow with a big capacitor like the one I'm using, but the good thing is that its charging. To increase charging I could hook the cells up in parallel and that should help.