9V Varta High Energy Alkaline Battery Tests

1 Dec
2013

9v-varta-high-energy-alkaline-battery

The 9V Varta High Energy Alkaline batteries we are testing here are what the manufacturer considers to be the most powerful of all of their Alkaline batteries series that were developed especially for power-hungry devices, e. g. toys, audio equipments, LED flashlights and computer devices. We’ve seen very good results from the AA and AAA size Varta alkaline batteries so we also have high expectations here as well. The expiration date of the tested battery here was 08-2018, so quite a lot of time left for use before expiring.


9v-varta-high-energy-alkaline-battery-capacity

In order to test the capacity of the 9V Varta High Energy Alkaline batteries we are using a constant current discharge rate of 0.05A (50 miliampers) and we have managed to get just 258 mAh. With this result and Varta claiming that their High Energy Alkaline batteries are the best they offer we are quite disappointed, we expected to see more from these batteries in our tests, so while Varta’s AA and AAA size Alkaline batteries have shown great results in our tests their 9V Alkalines are apparently not that good.

The performance of the 9V Varta High Energy Alkaline batteries in our tests:

– 258 mAh at 0.05A load

– 1.895 Wh at 0.05A load



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1 Response to 9V Varta High Energy Alkaline Battery Tests

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dragontirex

December 1st, 2013 at 23:02

Hi, thank you for sharing this fine info. I had one of these batteries in my multi-meter. And the meter was signaling a low battery. I took the battery out and tested it and indeed it was discharged. Then I decided to open it up and check the voltage of the AAAA cells inside. Guess what…. about 5 of them had about ~1.42V and the 6th one had about 300mV or so.
Classic case of unmatched capacity cells and voltage reversal. And the interesting fact was that the multimeter draw about 1mA and 2.5-3mA on the diode range. So this is a very low draw condition for a 9V battery. Please open up your 9V batt and check the individual cells voltage. Keep up the good work. 🙂

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