The Electron can accept up to 12V at Vin – but what would the ideal configuration be for maximizing useful life? I’m assuming maybe the regulators do better (more efficient) at one voltage vs another.
Higher voltage with lower capacity, or lower voltage at higher capacity?
For example… Assume a D cell is 2500mA @ 1.5V … is it best to have 9 D cells in series for a 2500mA @ 12V supply as your Vin? Or 3 paralleled strings of 3 giving 7500mA @ 4.5V?
Or is the difference really just in the noise?
I have an environmental monitor that I’d like to survive for 1 year doing reporting every 3 hours with approximately 2-3 minutes of uptime including the comms. Solar and other renewables or mains power aren’t an option, but annual swapping of a set of alkalines (or lithium as the temps may drop) is OK.