Posts Tagged ‘alkaline battery

9v-energizer-alkaline-battery

The 9V Energizer Alkaline batteries we are testing here are the standard Alkaline batteries from Energizer that should be the same as the 9V Industrial model that we have already tested, or at least this is what the official datasheets are suggesting giving pretty much the same specs for both types of batteries. The expiration date for this battery is written as 2018 and the production date is 08-2013 with a 5 year shelf life given by Energizer, unfortunately since the production and expiration date for the 9V Energizer Industrial battery we have tested already is way too different as this is a very fresh battery we cannot make direct comparison. This however gives the chance to see how fast do these batteries self discharge over time considering that the 9V Alkalines are with pretty low capacity already compared to AAA and AA size Alkaline batteries for example.


9v-energizer-alkaline-battery-capacity

In order to test the capacity of the 9V Energizer Alkaline batteries we are using a constant current discharge rate of 0.05A (50 miliampers) and we have managed to get 456 mAh. Excellent result and the reason we are getting such a high capacity is most likely that the battery has been produced just about three months ago, as for example the 9V Energizer Industrial Alkaline battery has managed to give us 380 mAh, but with a production date almost a year and a half before this one. So what you absolutely must do for 9V Alkaline batteries is to get them as fresh as possible in order to ensure that you will be getting really the maximum capacity out of them. So far this fresh battery from Energizer has provided the highest capacity in our tests for 9V Alkaline batteries, but as we’ve seen from the 9V Energizer Industrial Alkaline battery tests these batteries do perform very well even if you do not get them with a very recent production date.

The performance of the 9V Energizer Alkaline batteries in our tests:

– 456 mAh at 0.05A load

– 3.418 Wh at 0.05A load

To download a datasheet with the manufacturer’s battery specifications

9v-energizer-industrial-alkaline-battery

The 9V Energizer Industrial Alkaline batteries we are testing here are what the ones indented for Professional and Industrial use, however looking through the datasheet of the Industrial and regular 9V Energizer batteries we see pretty much the same specs, so in theory these should be the same batteries. Regardless if we are talking about the Industrial or Regular version of these batteries they are considered to be one of the best 9V Alkaline batteries available on the market and we are just about to see if that is true or not by testing them. The battery tested here is with an expiration date of 03-2017 and with a 5 year shelf life it should be produced in 03-2012, this date is very important if we are going to compare the Industrial and regular batteries to see if there is any difference.


9v-energizer-industrial-alkaline-battery-capacity

In order to test the capacity of the 9V Energizer Industrial Alkaline batteries we are using a constant current discharge rate of 0.05A (50 miliampers) and we have managed to get just 380 mAh or with other words a very good result, even though it is not the highest we’ve seen from a 9V Alakline battery in out tests so far. Have in mind that this battery has been produced more than a year and a half ago, so it has self discharged to some point, nevertheless this result is still very good and among the highest ones we’ve gotten so far.

The performance of the 9V Energizer Industrial Alkaline batteries in our tests:

– 380 mAh at 0.05A load

– 2.816 Wh at 0.05A load

To download a datasheet with the manufacturer’s battery specifications

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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