Erm, alkalines don't have any advantages in low-drain applications either. I dunno where that common misconception comes from.Higher capacity at low or high temperatures, higher capacity in high-drain situations, will not leak. Alkalines have a slight edge in low-drain apps, but can leak.
Erm, alkalines don't have any advantages in low-drain applications either. I dunno where that common misconception comes from.
That was 0.07C though, not 0.2C+.0.2C+ is relatively high drain outside the world of flashlights.
I suppose I should clarify that alkalines have superior energy density in day-long and longer applications. However, the fact that they have a reasonable chance of leaking corrosive sludge means I do not use alkalines in anything that I like.
Duracell PDF Figure 5 shows a figure of merit: The service life of a Duracell AA Alkaline cell at 100 mW constant load is over 25 hours. Some NiMHs have higher capacity, and 25 hours is right around the turning point I claim for the energy advantage to shift to alkalines.
Here is a thread that tests AAA alkaleaks at over 1C (500 mA drain).
Lithium vs alkaleak AAAs. You can't argue that any discharge test under 1 hour is 'low drain,' though, so the alkaline is spanked soundly. The electrical disadvantage of alkaleaks fade with lower current draw, as seen in the pdf.
Alkaleaks are pretty awful just because I guarantee that they will leak without warning, stranding you with no power or destroying your precious devices.
It's taken from here: http://www.batteryshowdown.com/The comparison plot posted by shadowww shows that the Energizer Ultimate Lithium has almost twice as much capacity as most alkaline.
What is your source for this plot?