Posts Tagged ‘GP batteries

1-5v-aaa-gp-super-alkaline-battery

The 1.5V AAA GP Super Alkaline batteries are the low-end Alkaline batteries from GP, then there is of course the Carbon Zinc as an even lower level, even though the Super in the name may suggest they may be some mid or even high-end solutions. As supposedly better Alkaline batteries GP also offer an Ultra Alkaline as well as Ultra Plus Alkaline series that we are also going to be checking out soon to see what kind of capacity they will be able to provide compared to the standard Super Alkaline. Anyway, the GP Super Alkaline batteries we tested here were with an expiration date set to 01-2019, meaning 6 years of shelf life and let us see what capacity you can expect to get from them as well…


1-5v-aaa-gp-super-alkaline-battery-capacity

Beginning our test of the 1.5V AAA GP Super Alkaline batteries as we usually do with a low constant current discharge rate of 0.1A we have managed to get 915 mAh as capacity, a result that is quite good for a “standard level” Alkaline batteries. Going to higher constant current discharge rates the batteries still do perform quite well, though at 0.5A load the result was a bit disappointing and thus hinting that these batteries are not designed for very high power applications. So in overall the capacity provided by the 1.5V AAA GP Super Alkaline batteries is very good.

The performance of the 1.5V AAA GP Super Alkaline batteries in our tests:

– 915 mAh at 0.1A load
– 666 mAh at 0.2A load
– 487 mAh at 0.3A load
– 203 mAh at 0.5A load

– 1.097 Wh at 0.1A load
– 0.778 Wh at 0.2A load
– 0.550 Wh at 0.3A load
– 0.226 Wh at 0.5A load

1-2v-aa-2500-mah-gp-rechargeable-nimh-battery

The 1.2V AA 2500 mAh GP Rechargeable NiMH batteries are supposedly from the higher capacity rechargeable models from GP and we had high expectations when we started testing them. They are rated at 2500 mAh typical and 2450 mAh minimal capacity, though our test results show a bit different picture and in order to avoid a possible mistake we even repeated the tests 3 times and got pretty much the same results. So take a look below to see what you can expect from these NiMH batteries from GP. We’ve already seen that different GP models can provide different results and apparently not all models are as good as you could expect them to be.


1-2v-aa-2500-mah-gp-rechargeable-nimh-battery-capacity

We have started the test of the 1.2V AA 2500 mAh GP Rechargeable NiMH batteries as we normally do with a low constant current discharge rate of 0.2A and the result we got was 2223 mAh as capacity and that is a bit of a disappointment. With more than 12% less than the advertised capacity and with repeating the tests multiple times just to be sure we are a bit disappointed, though the batteries did manage well at 0.5A and 1.0A, the results at high load with 2.0A were also disappointing. Hopefully the even higher capacity GP NiMH batteries will be able to provide better results than what we’ve got from these.

The performance of the 1.2V AA 2500 mAh GP Rechargeable NiMH Batteries in our tests:

– 2223 mAh at 0.2A load
– 2037 mAh at 0.5A load
– 1808 mAh at 1.0A load
– 66 mAh at 2.0A load

– 2.769 Wh at 0.2A load
– 2.388 Wh at 0.5A load
– 1.987 Wh at 1.0A load
– 0.068 Wh at 2.0A load

1-2v-aa-1800-mah-gp-rechargeable-nimh-battery

The 1.2V AA 1800 mAh GP Rechargeable NiMH batteries are a middle range rechargeable batteries from GP with a typical capacity of 1800 mAh and a minimum one of 1750 mAh. These are sub 2000 mAh rechargeable batteries they will probably have a hard time at our 2A constant current load test, but they should handle well at lower rates. Since we just tested the slightly lower capacity 1600 mAh model from GP we are quite interested to see how these compare to them, especially since the 1600 mAh model was able to provide a bit over 1800 mAh capacity at 0.2A constant current load.


1-2v-aa-1800-mah-gp-rechargeable-nimh-battery-capacity

We have started the test of the 1.2V AA 1800 mAh GP Rechargeable NiMH batteries with a constant current discharge rate of 0.2A here we’ve managed to get 1829 mAh or a slightly more than the typical rated capacity. This value is just 9 mAh more than what the 1600 mAh model from GP managed to offer at this test, however moving to higher loads the 1800 mAh NiMHs do manage to outperform the 1600 mAh model. So while for lower loads the 1.2V AA 1600 mAh GP Rechargeable NiMH batteries might perform roughly the same, moving to higher loads this 1800 mAh version will be the better choice as they are able to even provide some useable capacity at 2A constant current load.

The performance of the 1.2V AA 1800 mAh GP Rechargeable NiMH Batteries in our tests:

– 1828 mAh at 0.2A load
– 1729 mAh at 0.5A load
– 1270 mAh at 1.0A load
– 103 mAh at 2.0A load

– 2.219 Wh at 0.2A load
– 2.018 Wh at 0.5A load
– 1.352 Wh at 1.0A load
– 0.106 Wh at 2.0A load


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