Posts Tagged ‘GP batteries’

1.5V AAA GP Ultra Alkaline Battery Tests

20, Sep 2013

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

The 1.5V AAA GP Ultra Alkaline batteries are the mid-end Alkaline batteries from GP, even though the Ultra in the name may suggest they may be some high-end model. The Ultra Alkaline are intended for more power hungry devices, while the standard Super Alkaline batteries are for devices operating using lower power. As supposedly better Alkaline batteries GP also offer the Ultra Plus Alkaline series that we should be checking out in the near future. Anyway, the GP Ultra Alkaline batteries we tested here were with an expiration date set to 07-2019, meaning 6 years of shelf life. And now it is time to see what capacity they will be able to offer in our tests.


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

Beginning our test of the 1.5V AAA GP Ultra Alkaline batteries as we usually do with a low constant current discharge rate of 0.1A we have managed to get 877 mAh as capacity… a somewhat disappointing result, especially considering that the GP Super Alkaline batteries manage to get better result. The key here is that the 1.5V AAA GP Ultra Alkaline batteries are designed to handle better with devices requiring more power, so by increasing the load they start to show better results that the GP Super Alkaline batteries and going to loads of 0.3A and 0.5A they even manage to outperform by a bit the Duracell Alkaline batteries. So definitely a good choice for more power hungry devices and thus rising even higher our expectations for the GP Ultra Plus series that we still haven’t tested.

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

– 877 mAh at 0.1A load
– 728 mAh at 0.2A load
– 572 mAh at 0.3A load
– 355 mAh at 0.5A load

– 1.053 Wh at 0.1A load
– 0.839 Wh at 0.2A load
– 0.659 Wh at 0.3A load
– 0.401 Wh at 0.5A load

1.5V AAA GP Super Alkaline Battery Tests

18, Sep 2013

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 Tests

6, Sep 2013

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


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