Posts Tagged ‘1.2V

1-2v-aaa-840-mah-maxell-nimh-battery

The 1.2V AAA 840 mAh Maxell NiMH batteries are standard NiMH batteries and although their capacity rating may seem low at first there is something important that you should note about the rating. Most other NiMH battery manufacturers do list their product capacity ratings as typical values with large text and have a minimum value written somewhere with small text or not written at all. Unlike them Maxell has decided to list the minimum guaranteed capacity for their batteries as the actual battery capacity, so the 840 mAh rating here is the minimum guaranteed one, not the typical and there isn’t a typical rating written anywhere. So it will be quite interesting for us to see what is the actual performance of these Maxell AAA NiMH batteries in our tests…


1-2v-aaa-840-mah-maxell-nimh-battery-capacity

We have started the test of the 1.2V AAA 840 mAh Maxell NiMH batteries as we normally do with a low constant current discharge rate of 0.1A and the result we got was 1048 mAh as capacity, a surprisingly high result. We’ve seen other brand name AAA batteries rated at 1000 mAh to provide such capacities and these batteries form Maxell are rated as 840 mAh minimum capacity, so they are obviously able to provide significantly higher capacity as their typical rating. GOing with higher constant current load even at 0.5A these batteries still do manage to provide a bit over their rated minimum capacity and that is a great performance. We are really impressed with the results and Maxell could’ve easily rated these batteries with a typical capacity of 1000 mAh as they are clearly showing results similar to those of good quality 1000 mAh AAA NiMH products.

The performance of the 1.2V AAA 840 mAh Maxell NiMH batteries in our tests:

– 1048 mAh at 0.1A load
– 904 mAh at 0.2A load
– 848 mAh at 0.5A load
– 776 mAh at 1.0A load

– 1.309 Wh at 0.1A load
– 1.111 Wh at 0.2A load
– 1.012 Wh at 0.5A load
– 0.979 Wh at 1.0A load

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

The 1.2V AAA 1000 mAh Xcell NiMH batteries are standard non low self discharge NiMHs and although rated with some of the highest capacities for AAA NiMHs we have our doubts that they will be able to provide 1000 mAh. We’ve already seen that Xcell’s AA NiMH batteries are rated higher than what they actually can provide, so we are expecting to see similar results here with the AAA NiMH batteries from Xcell.


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

We have started the test of the 1.2V AAA 1000 mAh Xcell NiMH batteries as we normally do with a low constant current discharge rate of 0.1A and the result we got was 859 mAh as capacity, or quite a bit below their rated 1000 mAh capacity. We can’t say we did not expect to see something like that, though looking at the performance of these Xcell AAA NiMH batteries with increased constant current load they do manage to perform good. So if they were rated at 850 mAh instead of 1000 mAh they would’ve not only meet their rating, but also perform great for 850 mAh rating. In the end if you want higher capacity 1000 mAh AAA NiMH batteries then you better look at some other products that are actually able to deliver.

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

– 859 mAh at 0.1A load
– 767 mAh at 0.2A load
– 707 mAh at 0.5A load
– 654 mAh at 1.0A load

– 1.070 Wh at 0.1A load
– 0.941 Wh at 0.2A load
– 0.841 Wh at 0.5A load
– 0.736 Wh at 1.0A load

1-2v-aaa-1000-mah-sanyo-superlattice-alloy-evo-nimh-battery

The 1.2V AAA 1000 mAh Sanyo Superlattice Alloy Evo NiMH batteries are the standard Sanyo batteries that are not low self discharge (LSD) like their Eneloop series, but as we’ve seen other batteries from the same “regular” series performing great as one would expect from Sanyo. These batteries are rated as 1000 mAh typical capacity and have a rating of 930 mAh minimum capacity and we did expect to see them managing to meet these specifications. Of course we do plan to test the Eneloop and Eneloop XX LSD NiMH batteries very soon as well, so stay tuned form more battery tests of products coming from Sanyo.


1-2v-aaa-1000-mah-sanyo-superlattice-alloy-evo-nimh-battery-capacity

We have started the test of the 1.2V AAA 1000 mAh Sanyo Superlattice Alloy Evo NiMH batteries as we normally do with a low constant current discharge rate of 0.1A and the result we got was 1050 mAh as capacity and that is pretty impressive. At 0.2A they manage get close to 1000 mAh, even at 0.5A constant current load these batteries manage to provide more than their minimum rating and going even higher at 1.0A they still manage to perform very well. In the end as we’ve expected from Sanyo these regular series coming from the company manages to perform really well and exceed their specifications, so really a great product.

The performance of the 1.2V AAA 1000 mAh Sanyo Superlattice Alloy Evo NiMH batteries in our tests:

– 1050 mAh at 0.1A load
– 972 mAh at 0.2A load
– 934 mAh at 0.5A load
– 838 mAh at 1.0A load

– 1.335 Wh at 0.1A load
– 1.211 Wh at 0.2A load
– 1.129 Wh at 0.5A load
– 0.963 Wh at 1.0A load

Download the specifications of the Sanyo HR-4U 1000 mAh NiMH batteries


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