The Smallest Drugs Here is the updated version of the "smallest drugs" collection that I did the other day. Here are the criteria I used: the molecular weight cutoff was set, arbitrarily, at aspirin's 180. I excluded the inhaled anaesthetics, only allowing things that are oils or solids in their form of use. As a small-molecule organic chemist, I only allowed organic compounds - lithium and so on are for another category
Regulator to charge a 12v battery. Use a 16v panel (25-28 cells). Consider is the wattage of the panel. It controls how fast battery charges. A 12v 1.2A/h batt has 14w-hours of energy. A 6w panel (16v-18v) gives 18w-hours (in bright sunlight) in 3 hrs. The battery charge in 3 hrs. Adjust pot so relay drops out at 13.7v Charger turns ON when the v drops to about 12.5v. The 100R Dummy LOAD will absorb 3.25 watts and that is the maximum wattage the panel will produce with 100R load.
Why You Should Be Using a Linear Voltage Regulator