Unfortunately, I experienced a disappointment with these batteries the first time I used them. However, I do not want to post this as a premature assessment, as it could be an individual or special case. In any case, these batteries were intended to supply energy for a small torch with 9 LEDs ( https://www.galaxus.ch/de/s4/product/schoenenberger-titan-930-cm-50-lm-taschenlampe-14444513?supplier=406802 ). First I fully charged them and enjoyed the green light show. Then I quickly measured the voltage with a battery tester - not in volts, just the pointer position: everything was in the green range, as usual with AAA alkaline batteries.
After inserting it into the lamp, I noticed that the luminosity was identical to that with the batteries. But only for a few seconds. After that, it decreased more and more until only a dim glow remained. "The answer to the riddle: 4½ of the 9 LEDs had gone out. What was also noticeable: the housing and batteries had warmed up slightly in the short time - which is not the case with the batteries. Two other Teschen lamps of the same type run without problems with alkaline batteries; despite higher beta power (~8½ minutes compared to maybe 4 minutes), all nine LEDs are still intact.

Excerpt from the instruction manual:
These batteries are not intended for high-power, high-consumption applications such as high-intensity torches. For high current consumption/high intensity applications, our batteries may not be the best choice. Please check your product for instructions on the battery type recommended by the manufacturer.
If your battery feels hot to the touch, stop using the battery in this product as the product is likely to demand too much power from our battery. To protect against damage, our batteries will shut down if they become too hot.
For products that are sensitive to RF interference, use only the batteries recommended by the manufacturer. This includes wireless monitoring devices, avalanche transceivers, etc. The PCBA of our batteries emit radio frequencies that can affect the performance of RF-sensitive products.

This begs the question: Can LEDs be sensitive to RF or even react with defects?

Question

Unfortunately, I experienced a disappointment with these batteries the first time I used them. However, I do not want to post this as a premature assessment, as it could be an individual or special case. In any case, these batteries were intended to supply energy for a small torch with 9 LEDs ( https://www.galaxus.ch/de/s4/product/schoenenberger-titan-930-cm-50-lm-taschenlampe-14444513?supplier=406802 ). First I fully charged them and enjoyed the green light show. Then I quickly measured the voltage with a battery tester - not in volts, just the pointer position: everything was in the green range, as usual with AAA alkaline batteries.
After inserting it into the lamp, I noticed that the luminosity was identical to that with the batteries. But only for a few seconds. After that, it decreased more and more until only a dim glow remained. "The answer to the riddle: 4½ of the 9 LEDs had gone out. What was also noticeable: the housing and batteries had warmed up slightly in the short time - which is not the case with the batteries. Two other Teschen lamps of the same type run without problems with alkaline batteries; despite higher beta power (~8½ minutes compared to maybe 4 minutes), all nine LEDs are still intact.

Excerpt from the instruction manual:
These batteries are not intended for high-power, high-consumption applications such as high-intensity torches. For high current consumption/high intensity applications, our batteries may not be the best choice. Please check your product for instructions on the battery type recommended by the manufacturer.
If your battery feels hot to the touch, stop using the battery in this product as the product is likely to demand too much power from our battery. To protect against damage, our batteries will shut down if they become too hot.
For products that are sensitive to RF interference, use only the batteries recommended by the manufacturer. This includes wireless monitoring devices, avalanche transceivers, etc. The PCBA of our batteries emit radio frequencies that can affect the performance of RF-sensitive products.

This begs the question: Can LEDs be sensitive to RF or even react with defects?

Answer

HF could cause interference, but in this case the problem is more likely to come from the very simple construction of the torch. It probably has no electronics, but uses the internal resistance of the normally used batteries as a series resistor for the LEDs. However, since these batteries supply a constant 1.5V for the specified period of a few minutes without voltage drop, the LEDs get too much power and burn out.

Answer

I haven't been using this device for long enough to determine its advantages and disadvantages.
I only use the batteries for the Swisscom TV box remote control and they work there, but the remote control does not have as high a battery load as a torch. For torches, I use VARTA AA rechargeable batteries Endless 1000mAh with very good results.

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