Archive for the ‘Battery Comparison’ Category

9v-duracell-copper-top-vs-procell-alkaline-battery

We have already tested both the 9V Duracell Alkaline batteries and the 9V Duracell Procell Alkaline batteries and we’ve seen interesting results, we’ve decided to do a direct comparison between the two since there is a common belief that the Duracell Copper Top Alkaline batteries are actually the same as the Duracell Procell Alkaline. If the two types of batteries are exactly the same they should be able to provide very similar useable capacity in our tests, however this is not the case as you will see in a moment. In order to make sure that we are properly comparing the two types of batteries we got them with matching expiration dates just to be sure that there should be no significant difference due to self discharge if they were produced in bigger time difference.


9v-duracell-copper-top-vs-procell-alkaline-battery-capacity

So far our comparisons between Duracell Copper Top and Duracell Procell batteries have shown slight advantage in favor of the Procells for the AA and AAA size, so this time we kind of expected to get similar results, but to our surprise we did not. In fact the standard Copper Top Duracell battery did provide better result and with over 20% higher useable capacity than the Procell this is a significant different. We did check the expiration dates to match and have repeated the test with another 9V Duracell Procell battery just to be sure there was nothing wrong, but we got pretty much the same lower capacity from the Procell. In the end we can say that we were really disappointed from the 9V Duracell Procell batteries, we expected to see more from them, especially considering the fact that around 300 mAh is what a decent 9V Alkaline battery should be able to provide in our test conditions.

Duracell – Copper Top – Procell
0.05A load – 311 mAh – 245 mAh

With these results there is no way to recommend the Procell over the standard Copper Top model when talking about 9V Alkaline batteries from Duracell, though that is not the case with AA and AAA size Duracell batteries where we’ve seen very good performance from both Copper Top and Procell Duracell batteries. In fact when talking about 9V Alkaline batteries we are not going to recommend you to go for a Duracell at all, regardless if Copper Top or Procell as we have already tested other brands that are capable of giving you close to 50% more capacity than what Duracell does… and at a price that can be lower than that of Duracell!

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We have already tested more than 10 various 1.5V AA-size primary batteries (single use non-rechargeable models) from various brands including some of the most popular such as Duracell, Energizer, Panasonic, Toshiba, Varta and others so we have decided to do a little ranking by listing the top performing models in our tests in the various load scenarios we are using for testing. As a reminder we are using constant current load tests with 0.1A, 0.2A, 0.5A and 1.0A for the 1.5V AA-size Alkaline batteries, so we are going to rate the best batteries in four different charts as we’ve seen that one battery that performs very well under low load may not be the best with higher load and vice versa…


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Here is our current top 10 of 1.5V AA Alkaline batteries at 0.1A constant current load:

2748 mAh – 1.5V AA Varta Max Tech Alkaline Battery
2700 mAh – 1.5V AA Varta High Energy Alkaline Battery
2557 mAh – 1.5V AA Duracell Procell Alkaline Battery
2517 mAh – 1.5V AA Panasonic Pro Power Alkaline Battery
2467 mAh – 1.5V AA Toshiba Alkaline Battery
2377 mAh – 1.5V AA Maxell Super Alkaline Battery
2348 mAh – 1.5V AA Duracell Alkaline Battery
2326 mAh – 1.5V AA Energizer Industrial Alkaline
2237 mAh – 1.5V AA Maxell Alkaline Battery
2231 mAh – 1.5V AA GP Super Alkaline Battery


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Here is our current top 10 of 1.5V AA Alkaline batteries at 0.2A constant current load:

2120 mAh – 1.5V AA Duracell Procell Alkaline Battery
2114 mAh – 1.5V AA Varta Max Tech Alkaline Battery
1959 mAh – 1.5V AA Maxell Super Alkaline Battery
1941 mAh – 1.5V AA Varta High Energy Alkaline Battery
1903 mAh – 1.5V AA Toshiba Alkaline Battery
1873 mAh – 1.5V AA Q-Lite Alkaline Battery
1869 mAh – 1.5V AA Energizer Industrial Alkaline
1859 mAh – 1.5V AA Panasonic Pro Power Alkaline Battery
1839 mAh – 1.5V AA GP Super Alkaline Battery
1808 mAh – 1.5V AA Duracell Alkaline Battery


top-10-best-performing-1-5v-aa-alkaline-batteries-3

Here is our current top 10 of 1.5V AA Alkaline batteries at 0.5A constant current load:

1287 mAh – 1.5V AA Duracell Procell Alkaline Battery
1216 mAh – 1.5V AA Varta High Energy Alkaline Battery
1178 mAh – 1.5V AA Panasonic Pro Power Alkaline Battery
1129 mAh – 1.5V AA Energizer Industrial Alkaline
1078 mAh – 1.5V AA Varta Max Tech Alkaline Battery
1070 mAh – 1.5V AA Maxell Super Alkaline Battery
1050 mAh – 1.5V AA Duracell Alkaline Battery
1062 mAh – 1.5V AA Q-Lite Alkaline Battery
1025 mAh – 1.5V AA Toshiba Alkaline Battery
1010 mAh – 1.5V AA Maxell Alkaline Battery


top-10-best-performing-1-5v-aa-alkaline-batteries-4

Here is our current top 10 of 1.5V AA Alkaline batteries at 1.0A constant current load:

619 mAh – 1.5V AA Duracell Procell Alkaline Battery
572 mAh – 1.5V AA Panasonic Pro Power Alkaline Battery
566 mAh – 1.5V AA Maxell Super Alkaline Battery
545 mAh – 1.5V AA Varta Max Tech Alkaline Battery
537 mAh – 1.5V AA Varta High Energy Alkaline Battery
506 mAh – 1.5V AA Duracell Alkaline Battery
500 mAh – 1.5V AA Energizer Industrial Alkaline
483 mAh – 1.5V AA Maxell Alkaline Battery
482 mAh – 1.5V AA Q-Lite Alkaline Battery
458 mAh – 1.5V AA GP Super Alkaline Battery

We are going to be updating these charts as we test new batteries in order to get a clear view of the situation with battery capacity and what batteries will work best for your specific needs. Have in mind that it is not always up to the highest capacity and you should always take into consideration the price of the batteries as well. For example if the second battery in the chart offers just 1% less capacity, but you can buy it for 30% less then you might sacrifice the minimal gain in extra capacity because of the much better price, so do have that in mind as well.

1-5v-aaa-duracel-copper-top-vs-duracell-procell-alkaline-batteries

We have already tested both the 1.5V AAA Duracell Alkaline batteries and the 1.5V AAA Duracell Procell Alkaline batteries and they both did perform really well by providing very high capacities for AAA-sized Alkaline batteries. Since there is a common belief that the Duracell Copper Top Alkaline batteries are actually the same as the Duracell Procell Alkaline we are going to compare both types and see if they are indeed the same batteries with different labels or there is an actual difference as Duracell claims in favor of the Procell batteries.


1-5v-aaa-duracel-copper-top-vs-duracell-procell-alkaline-batteries-capacity

You can see that at low current drain the difference is about 7% at 0.1A in favor of the Procell, however as the current draw increases to 0.2A the gap decreases a bit to just about 2.5%. Though at the at 0.3A load the Procell batteries take significant lead with close to 14% and by and going to 0.5A the difference in useable capacity you get gets even higher with about 35% in favor of the Procell batteries. So the 1.5V AAA Duracell Procell Alkaline batteries are actually better than the 1.5V AAA Duracell Copper Top Alkaline batteries especially when the load on the batteries gets higher, meaning that we are talking about different batteries indeed.

Duracell – Copper Top – Procell
0.1A load – 970 mAh – 1038 mAh
0.2A load – 777 mAh – 797 mAh
0.3A load – 553 mAh – 627 mAh
0.5A load – 336 mAh – 455 mAh

So in the end if you are going to be using AAA batteries in a low load applications such as a remote control for a TV for example, then you might just go with the standard Duracell Alkaline batteries as the difference in capacity in such situations is probably something that you will not notice at all… unless you manage to find Procells at a better price than the standard Duracell Copper Tops. For applications that require more power however such as remote controlled toys for example you should consider choosing the Procells as they will definitely be able to offer you significantly more.


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