Posts Tagged ‘GP batteries

1-2v-aaa-1000-mah-gp-nimh-battery

The 1.2V AAA 1000 mAh GP NiMH batteries we test here are of the standard NiMH type and are rated at 1000 mAh typical capacity and 930 mAh minimum guaranteed. Our experience so far with GP batteries has shown that some models are performing great while others not so well, so it will be interesting to see to which group we can add these batteries. So time to start the testes…


1-2v-aaa-1000-mah-gp-nimh-battery-capacity

As we usually do we have started the test of the 1.2V AAA 1000 mAh GP NiMH batteries with a low constant current discharge rate of 0.1A and the result we got was 1085 mAh and that is pretty impressive for a battery rated at 1000 mAh. Going further with a load of 0.2A and we managed to get 1005 mAh which is still over the typical rating of these batteries, and with even higher load we still manage to get good results, though not that impressive as at 0.5A we are are a below the minimum rating. Still we are seeing very good performance from the 1.2V AAA 1000 mAh GP NiMH batteries.

The performance of the 1.2V AAA 1000 mAh GP NiMH batteries in our tests:

– 1085 mAh at 0.1A load
– 1005 mAh at 0.2A load
– 876 mAh at 0.5A load
– 796 mAh at 1.0A load

– 1.325 Wh at 0.1A load
– 1.211 Wh at 0.2A load
– 1.029 Wh at 0.5A load
– 0.874 Wh at 1.0A load

1-2v-aa-2700-mah-gp-rechargeable-nimh-battery

The 1.2V AA 2700 mAh GP NiMH batteries are the largest capacity NiMHs offered by the company and we are expecting to see good results from them. With GP’s batteries we’ve seen quite interesting results in our tests, some models are a bit disappointing, others are surprisingly good, but since we’ve seen varying results with the highest capacity NiMH batteries from different brands we are hoping that GP did not make any compromise with their top model at least.


1-2v-aa-2700-mah-gp-rechargeable-nimh-battery-capacity

Starting the test of the 1.2V AA 2700 mAh GP NiMH batteries as we normally do with a low constant current discharge rate of 0.2A and the result was 2664 mAh as capacity which is great result for a battery rated at 2700 mAh (typical capacity), we can say that it is perfect. Furthermore increasing the constant current discharge rate at up to 2.0A the batteries continue to perform great offering great useable capacity levels. We can say for sure that the 1.2V AA 2700 mAh GP NiMH Rechargeable batteries are really good choice and are true to their ratings, unlike the not so well performing 2500 mAh model that we’ve tested some time ago that got us a bit disappointed.

The performance of the 1.2V AA 2700 mAh GP NiMH Batteries in our tests:

– 2664 mAh at 0.2A load
– 2527 mAh at 0.5A load
– 2404 mAh at 1.0A load
– 2223 mAh at 2.0A load

– 3.329 Wh at 0.2A load
– 3.082 Wh at 0.5A load
– 2.801 Wh at 1.0A load
– 2.436 Wh at 2.0A load

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


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