**These results were confirmed by periodic measurements with my digital multimeter**

So after leaving my test for 2 days and forgetting to insert an SD Card for 1, I finally have some results.

I wanted to test our the voltage drop, which helps me understand the discharge curve of the batteries. These are often available for popular batteries but never in the sub-milliamp range. My results show a clear trend and some evidence of leveling out, which is what I would expect as a NiMH battery tends to stick at 1.2v for longer. This could mean the batteries would last a lot longer that I assume even though 2.4v does mean pretty low brightness.

I would like to er of the side of caution with any claims about runtime.

I also calculated a current graph using the known 460 ohm resistance and the voltage.

Kinda the same right? Voltage and current are directly related in this scenario so this is what I would expect to see.

Next up, the solar panels.