Posts Tagged ‘Maxell

1-5v-aa-maxell-zinc-battery

The 1.5V AA Maxell Zinc batteries as their name suggests are Zinc Carbon batteries and here Maxell is not trying to cover this fact as some other manufacturers do by not clearly writing the type of their battery. The batteries we’ve tested here were labeled with an expiration date of 09-2015 and they are supposed to have a 3 years shelf life as most Carbon Zinc batteries do. The importance of saying clearly that a primary (single use non-rechargeable) battery is a Zinc Carbon one and not Alkaline is important as these batteries usually provide less capacity and are with expiration dates sooner than an Alkaline and although a bit cheaper unless for some low power applications you better go for Alkaline and not Zinc Carbon.


1-5v-aa-maxell-zinc-battery-capacity

We started the tests of the 1.5V AA Maxell Zinc batteries with a constant current discharge rate of 0.1A and they were able to provide us with 649 mAh and while this is not bad for a Zinc Carbon battery you can get much more from an Alkaline battery. Increasing the constant current load the Maxell Zinc batteries do provide lower capacity, but they can handle decently at up to about 0.5A, going for a 1 Amp seems to be a bit too much for them as they very quickly hit the cutoff voltage.

The performance of the 1.5V AA Maxell Zinc Batteries in our tests:

– 649 mAh at 0.1A load
– 499 mAh at 0.2A load
– 236 mAh at 0.5A load
– 25 mAh at 1.0A load

– 0.786 Wh at 0.1A load
– 0.584 Wh at 0.2A load
– 0.253 Wh at 0.5A load
– 0.030 Wh at 1.0A load

9v-maxell-alkaline-battery

The 9V Maxell Alkaline batteries we test here are rated with up to 5 years shelf life and are marked for use up to 01-2018. The Maxell website does not have detailed specifications about these batteries, so we have to check them out by testing the actual capacity we can get out of these.


9v-maxell-alkaline-battery-capacity

To test the capacity that 9V alkaline batteries can provide we are using a constant current discharge test with 0.05A load (50 miliampers) due to the fact that the total capacity of these batteries is not that high and they are not intended for use in situations where high current loads can be expected. Nowadays the 9V batteries find their place in different battery operated measuring equipment with low power requirements such a multimeter for example. The 9V Maxell Alkaline battery we have tested here managed to provide 432 mAh capacity before hitting the 6.6V cutoff voltage and that is quite good performance for a 9V alkaline battery.

The performance of the 9V Maxell Alkaline Batteries in our tests:

– 432 mAh at 0.05A load

– 3.251 Wh at 0.05A load


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