1.5V AA GP Super Alkaline Battery Tests

2 Aug


The 1.5V AA GP Super Alkaline batteries are the mid-range model that offers high capacity for alkaline batteries from GP, so we were quite interested to see how these compare to other high-end alkaline batteries. These batteries are supposed to offer up to 7 years shelf life and the ones we’ve tested were marked for use up to 01-2019. GP offers also an Ultra lineup of Alkaline batteries that are supposed to offer even higher capacity than the Super lineup that we are testing here, so we should also check these models as well in the future. Bit for now let us see how the 1.5V AA GP Super Alkaline batteries can perform. GP’s website does not have a lot of useful information about the actual capacity that the Super Alkaline batteries should offer, so we are off to test to see what we can expect to get from them.


Starting with the power profile test of the 1.5V AA GP Super Alkaline batteries we can see that they can handle pretty high loads before reaching the cutoff voltage of 1V that we are using for our tests. We’ve managed to reach up to 1.55A current draw before the batteries hit the cutoff voltage and values over 1 Amp are not that common to find with alkaline batteries, so these batteries from GP are handling pretty well actually up to this point. The open circuit voltage of the 1.5V AA GP Super Alkaline batteries we’ve tested with was 1.58V, though of course that value decreases when the battery is under load.


Moving on to the constant current draw tests we are performing and starting with a 0.1A load tests for the 1.5V AA GP Super Alkaline batteries we’ve managed to get 2231 mAh capacity which we consider to be quite good. Going for 0.2A constant current draw form the batteries the useful capacity you can expect is 1839 mAh and going even higher the useful capacity gets pretty much in half in our tests at 0.5A and 1.0A as compared to the previous rate. Nevertheless the 1.5V AA GP Super Alkaline batteries still manage to perform very well even under higher constant current draw rates, though as usual for such situations we would still recommend to go for rechargeable NiMH batteries instead as the better choice.

The performance of the 1.5V AA GP Super Alkaline Batteries in our tests:

– 2231 mAh at 0.1A load
– 1839 mAh at 0.2A load
– 991 mAh at 0.5A load
– 458 mAh at 1.0A load

– 2.765 Wh at 0.1A load
– 2.197 Wh at 0.2A load
– 1.122 Wh at 0.5A load
– 0.504 Wh at 1.0A load

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1 Response to 1.5V AA GP Super Alkaline Battery Tests


December 6th, 2013 at 00:36

I have 2 of these batteries. And I had some AAA’s and I can tell you one thing about them, they are nothing but an overpriced pieces of junk.The ones I have now on front of me read 1.4v each and I tested their internal resistance which ranges from about 0.75 to 0.89 ohm. Then I tested a Duracell ProCell which read 1.42V and the internal resistance is about 0.25ohm. Huge difference. Also I had the AAA’s in a flashlight and the flashlight kept dimming because of the very high internal resistance of the cells. They read about 0.8V when I took them out of the flashlight and then after 10 mins they read 1.3v or more which is clearly that they have a very high internal resistance. Plus the flashlight, only drew about 110mA. My advice is to stay away from them. 🙂

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