Tests and reviews of different batteries to help you find the Right One…
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.
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