Posts Tagged ‘Varta’

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

1.2V AAA 1000 mAh Varta Power Accu NiMH Battery Tests

18, Nov 2013

1-2v-aaa-1000-mah-varta-power-accu-nimh-battery

The 1.2V AAA 1000 mAh Varta Power Accu NiMH batteries are of the highest capacity rechargeable AAA size NiMHs that Varta offers, though these are the last of the non-LSD models as the company has apparently decided to replace this model with a low self discharge version. So far we’ve seen very good results in terms of performance from Varta batteries (especially when used in low power applications), so here we also have high expectations.


1-2v-aaa-1000-mah-varta-power-accu-nimh-battery-capacity

Starting the test of the 1.2V AAA 1000 mAh Varta Power Accu NiMH batteries with a low constant current discharge rate of 0.1A and got us 1086 mAh as useable capacity and that is a great result making these batteries great for use in low power applications. In fact the 1086 mAh capacity is the highest capacity from a rechargeable AAA size battery that we’ve measured so far. By further increasing the levels of load we still get good levels of capacity, though the results here are not as good as the one with 0.1A and they are more moderate, but still showing that these Varta batteries can handle pretty good high power use as well.

The performance of the 1.2V AAA 1000 mAh Varta Power Accu NiMH batteries in our tests:

– 1086 mAh at 0.1A load
– 818 mAh at 0.2A load
– 757 mAh at 0.5A load
– 742 mAh at 1.0A load

– 1.345 Wh at 0.1A load
– 1.013 Wh at 0.2A load
– 0.890 Wh at 0.5A load
– 0.799 Wh at 1.0A load

1.5V AAA Varta Max Tech Alkaline Battery Tests

26, Sep 2013

1-5v-aaa-varta-max-tech-alkaline-battery

The 1.5V AAA Varta Max Tech Alkaline batteries are the higher-end version of Alkaline batteries that the company has and are intended for use with high-tech devices, e.g. mMP3 players, digital cameras, photoflash etc. according to Varta. Varta also has a High Energy series that is intended for use with more power hungry devices and is regarded as the most powerful of all Varta Alkaline batteries. The Max Tech batteries we’ve had for testing here were with an expiration date of 06-2017.


1-5v-aaa-varta-max-tech-alkaline-battery-capacity

Beginning our test of the 1.5V AAA Varta Max Tech Alkaline batteries as we usually do with a low constant current discharge rate of 0.1A we have managed to get just 787 mAh as capacity, so we were a bit disappointed as with the AA size batteries of the same type we’ve got the highest capacity among all models we’ve tested and we expected to see similar excellent results here as well. Going for higher constant current discharge rate the batteries still did not perform as good as we’ve expected them, so they were not like a high-end model, but the performance was more like a mid-end ones. And while the results we’ve got were still very decent, we are a bit disappointed as we expected more, and we should of course also test the High Energy models to see how well will they perform as well.

The performance of the 1.5V AAA Varta Max Tech Alkaline batteries in our tests:

– 787 mAh at 0.1A load
– 597 mAh at 0.2A load
– 453 mAh at 0.3A load
– 202 mAh at 0.5A load

– 0.942 Wh at 0.1A load
– 0.693 Wh at 0.2A load
– 0.510 Wh at 0.3A load
– 0.222 Wh at 0.5A load


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