During the Duracell Bunny is already asleep, the Ikea-Hare drums merrily!

When I received these batteries for testing, I wondered how to test the batteries. Not so easy, because with Duracell I previously had no experience. Already in 2009 and 2010 batteries were tested and compared by Stiftung Warentest and computer screen. The result was sobering: Although the brand batteries up to 16% lasted longer, they cost the partially 4-5 times the price. No really good value for money!
Unfortunately, I found no recent tests. So I made a self-test:

Was picked a Mini Maglite flashlight. Guinea pigs were

1x Duracell Ultra Power AAA
1x AAA Aldi Nord
1x AAA Ikea

All batteries are "fresh" from the store and have at least with me not long storage time or were not cold or other unfavorable factors exposed.

The result surprised me very much. I expected at least a slight edge of its useful life in the Duracell battery. The result looked but like this:

Duracell Ultra Power: 4 hours luminosity
Aldi Nord: 4 hours
Ikea: 5.75 hours

MY CONCLUSION:
Of course, these are not a scientifically based test, but only by a small self-experiment, but obviously in the similar direction goes, as the tests that are already 4-5 years old: brand batteries do not provide decisive advantage in longevity.
Whether the result 1: 1 can also be applied to batteries of other sizes, I can not be conclusively assessed, but assume that the results will be similar. If at the AAA batteries, no significant difference can be seen, this will not be the case also for the other batteries.
Priced at 0.90 for Duracell, 0.20 for Ikea battery and 0.21 for Aldi battery, I will engage in the future to Aldi or Ikea. Leaking batteries I have not had for years, because I start from a corresponding security in all of the above batteries.

3 stars for an average good battery, 2-star deduction for the value for money.