Do batteries last longer with constant current draw or spiky current draw?
Or, as is implied by the accepted answer to "Making a battery last a long time in a microcontroller circuit", do some battery chemistries last longer with a constant current draw, while other battery chemistries last longer with a spiky current draw? And if so, which battery chemistries are which?
In other words: Say I have a microcontroller programmed to wake up and do a few things once a minute, and then go back to sleep for the rest of the minute.
Which kind of batteries last longer with minimum capacitance across the capacitor (so the battery sees a big current spike once a minute)?
Which kind of batteries last longer with a big capacitor (or some kind of LC filter) hooked up to battery (so the MCU pulls a big spike of current from the capacitor once a minute, and then the battery very slowly trickle-charges the capacitor)?