It does matter which batteries you buy!

Most AAA batteries look identical on the outside, but tests reveal significant differences in performance. The key factors are usable energy, runtime under load and voltage stability. While this is hardly relevant for simple devices such as remote controls, it becomes clearly noticeable with higher power consumption. That is why all models were tested under two realistic load profiles.

• Test setup - two load scenarios: normal and high continuous load
• Evaluation criteria - usable energy, runtime, voltage drop
• Result - high capacity ratings say little about actual performance
• Differences under load - under high load, the results vary significantly
• Other factors - cell chemistry, value for money and shelf life influence the overall picture

The Energizer Ultimate Lithium clearly comes out on top in the test. It delivers the highest usable energy and capacity and remains the most stable even under high load. In both load scenarios, it maintains its voltage for a particularly long time and only drops significantly later on – an advantage for devices with a consistently high power requirement.

For such applications, it is not just runtime that counts, but above all a consistently high voltage. This is precisely where the Ultimate Lithium shows its strength: devices run at full power for longer, rather than losing power early on.

• Performance – maximum energy, excellent stability
• Applications – ideal for power-hungry devices
• Voltage curve – long period of stable voltage, followed by a gradual drop
• Price – expensive, but at the cutting edge of technology
• Shelf life – up to 25 years