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

On the internet there is a lot of talk about the standard Duracell Copper Top Alkaline batteries and the Duracell Procell Alkaline batteries intended for business and industrial use. You can find some claims that both are essentially the same battery, just with different packaging, however since we’ve tested both types of these we can confirm that there is slight difference between them. The Duracell Procell Alkaline batteries are indeed a bit better by providing a bit more capacity under the same conditions, so they are not the same as the standard Copper Top batteries that the company offers to consumers.


duracell-copper-top-vs-duracell-procell-alkaline-battery-2

You can see that at low current drain the difference is just about 9% at 0.1A in favor of the Procell model, however as the current draw increases the gap continues to increase and the Procell batteries are able to deliver more – 15% at 0.2A, 18.5% at 0.5A and going to 1A the difference in useable capacity you get goes to a bit more than 17%. So the 1.5V AA Duracell Copper Top Alkaline batteries are clearly not as good as their Procell counterparts…

Duracell – Copper Top – Procell
0.1A load – 2348 mAh – 2557 mAh
0.2A load – 1808 mAh – 2120 mAh
0.5A load – 1050 mAh – 1287 mAh
1.0A load –   506 mAh –   619 mAh

In the end if you can get Duracell Procell and you really need the better capacity they provide along with the supposedly better performance in more extreme operating conditions (we still need to check that as well) and they do not come at a significantly higher price compared to the standard Duracell Copper Top Alkaline batteries you should go for the Procell ones.

1-5v-aa-duracell-alkaline-battery

The 1.5V AA Duracell Alkaline batteries we are testing are the typical Duracell Copper Top batteries that you can find pretty much everywhere in a shop or a gas station. The batteries we’ve got for testing are under warranty until 03-2019 and Duracell mentions that these are guaranteed for 10 years in storage. Duracell’s website does not have detailed information about the specs of these batteries or the capacity they are supposed to offer, so we’ve decided to test them so that yo will be able to compare the results to other Alkaline batteries.


1-5v-aa-duracell-alkaline-battery-capacity

The Open Circuit Voltage (no load voltage) of the 1.5V AA Duracell Alkaline batteries is 1.6V, though it quickly drops to 1.5V under load. We are testing all Alkaline batteries with a constant current load of 0.1A, 0.2A, 0.5A and 1A and measuring what capacity they can provide at these levels, and these Alkaline cells from Duracell are no exception. The Duracell batteries are able to handle quite well higher current drain for a while and although there is an expected drop in the useable capacity you get even at 1A constant current load we got a decent performance out of them.

What we got out of the 1.5V AA Duracell Alkaline batteries in our tests:

– 2348 mAh at 0.1A load
– 1808 mAh at 0.2A load
– 1050 mAh at 0.5A load
– 506 mAh at 1.0A load

– 2.913 Wh at 0.1A load
– 2.189 Wh at 0.2A load
– 1.194 Wh at 0.5A load
– 0.564 Wh at 1.0A load

standard-battery-types-alkaline-rechargeable

There are multiple battery sizes that are the most commonly used ones, these are the AAA, AA, C, D and 9V batteries that can be either primary (single use) as well as rechargeable. But these batteries also have many other names, some of which are used by different manufacturers and in some countries the other names may be more popular than the typical types mentioned above.

AAA Alkaline Battery – MN2400, LR03, E92, 4203/4003, K3A, AM4, 824, LR03, 24A, R03 (carbon–zinc), 24D (carbon–zinc)
AAA Rechargeable Battery – HR03 (NiMH), MIGNON, MINI-STILO, 4003, E92, K3A, R0, UM4, KR03 (NiCd), ZR03 (NiOOH)

The typical capacity of an AAA size alkaline battery is around 1000-1200 mAh, for Carbon-Zinc batteries the capacity is around 500 mAh and the rechargeable AAA batteries of the NiMH type usually offer abound 800-1000 mAh capacity.

AA Alkaline Battery – MN1500, LR6, E91, 4206/4006, KAA, AM3, 815, LR6, R6 (carbon–zinc), 15D (carbon–zinc)
AA Rechargeable Battery – HR6 (NiMH), MICRO, STILO, 4006, E91, KAA, R6, UM3, KR6 (NiCd), ZR6 (NiOOH)

The typical capacity of an AA size alkaline battery is around 1500-2500 mAh, for Carbon-Zinc batteries the capacity is around 500-800 mAh and the rechargeable AA batteries of the NiMH type usually offer abound 1600-2900 mAh capacity.

C Alkaline Battery – MN1400, LR14, E93, 4014, KC, AM2, 814, LR14, R14 (carbon–zinc), 14D (carbon–zinc)
C Rechargeable Battery – HR14 (NiMH), BABY, MEZZA-TORCIA, 4014, E93, KC, R14, UM2, KR14 (NiCd), ZR14 (NiOOH)

The typical capacity of a C size alkaline battery can be up to about 8000 mAh, for Carbon-Zinc batteries the capacity can be up to about 4000 mAh and the rechargeable C batteries of the NiMH type usually offer abound 4500-6000 mAh capacity. Alternatively there are also special plastic adapters that can be used together with an AA battery to make a C size cell, though the capacity would be lower in this case than what a C size battery would normally provide.

D Alkaline Battery – MN1300, LR20, E95, 4020, KD, AM1, 813, LR20, 13D (carbon-zinc), R20 (carbon-zinc)
D Rechargeable Battery – HR20 (NiMH), HR20, MONO, TORCIA, 4020, E95, KD, R20, UM1, KR20 (Ni-Cd), ZR20 (NiOOH)

The typical capacity of a D size alkaline battery can be up to about 12000 mAh, for Carbon-Zinc batteries the capacity can be up to about 8000 mAh and the rechargeable D batteries of the NiMH type usually offer abound 2000-12000 mAh capacity. Alternatively there are also special plastic adapters that can be used together with an AA battery to make a D size cell, though the capacity would be lower in this case than what a D size battery would normally provide.

9V Alkaline Battery – MN1604, 6LR61, 522, 4022, K9V, 6AM6, A1604, 6LR61, 1604D (carbon‑zinc), 6F22 (carbon-zinc), 1604LC (lithium)
9V Rechargeable Battery – HR9V (NiMH), HR9V, E-BLOCK, TRANSISTOR, 422, 4022, 6F22, K9V, 6HR61, 6KR61 (NiCd), 11604 (NiCd)

The 9V batteries essentially consists of multiple cells to bring up the voltage higher – 6x 1.5V cells for carbon-zinc; 3 cells for Lithium; 6, 7 or 8 cells for NiMH (7.2V, 8.4V or 9.6V) using 1.2V cells. Alkaline batteries can go up to about 500-600 mAh capacity, 400 mAh for the carbon‑zinc, up to about 1200 mAh for lithium (non-rechargeable), 200–300 mAh for NiMH and about 100 mAh for NiCd.

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