Posts Tagged ‘Toshiba Carbon Zinc’

1.5V AAA Toshiba Super Heavy Duty Carbon Zinc Battery Tests

7, Sep 2013

1-5v-aaa-toshiba-super-heavy-duty-carbon-zinc-battery

The 1.5V AAA Toshiba Super Heavy Duty batteries despite their good sounding names are essentially Carbon Zinc batteries, though that is not marked anywhere on the batteries themselves and these are commonly found in supermarkets for example. The batteries we got for testing were with an expiration date of 04-2016, so they are supposedly offering a shelf life of 3 years, but what about their capacity. As is the case with Carbon Zinc batteries you should not expect very high capacity, but let us see what these Toshiba Super Heavy Duty batteries can offer in terms of capacity in our tests.


1-5v-aaa-toshiba-super-heavy-duty-carbon-zinc-battery-capacity

We have started the test of the 1.5V AAA Toshiba Super Heavy Duty Carbon Zinc batteries as we normally do with a low constant current discharge rate of 0.1A and the result we got was 320 mAh as capacity, not that much as we expected from a Carbon Zinc battery. By further increasing the constant current load to the higher values we test with and the batteries started providing even less useable capacity, something that is to be expected, but while Carbon Zinc batteres do provide less capacity than their Alkaline counterparts they are also not a good choice for applications requiting more power. Nevertheless we got a decent result for a Carbon Zinc batteries from the 1.5V AAA Toshiba Super Heavy Duty Carbon Zinc batteries.

The performance of the 1.5V AAA Toshiba Super Heavy Duty Carbon Zinc Batteries in our tests:

– 320 mAh at 0.1A load
– 195 mAh at 0.2A load
– 138 mAh at 0.3A load
– 58 mAh at 0.5A load

– 0.379 Wh at 0.1A load
– 0.219 Wh at 0.2A load
– 0.147 Wh at 0.3A load
– 0.060 Wh at 0.5A load

1.5V AA Toshiba Super Heavy Duty Carbon Zinc Battery Tests

23, Aug 2013

1-5v-aa-toshiba-super-heavy-duty-carbon-zinc-battery

The 1.5V AA Toshiba Super Heavy Duty batteries are of the Carbon Zinc type, however this is not mentioned anywhere on the battery itself and this along with the fact that the batteries are labeled as Super Heavy Duty gives out the fact that they are indeed Carbon Zinc. This simply means that the 1.5V AA Toshiba Super Heavy Duty batteries that we test here with an expiration date of 04-2016 are not going to provide as much capacity as an Alkaline battery. We are not very happy when we find a Carbon Zinc battery that is not clearly labeled as such as that may be misleading the buyer, especially if not careful enough. As a general rule of thumb Alkaline batteries should have Alkaline written on them as opposed to Carbon Zinc batteries do not have that clearly stated.


1-5v-aa-toshiba-super-heavy-duty-carbon-zinc-battery-capacity

Anyway, lets us see what we can expect in terms of performance from these Carbon Zinc batteries from Toshiba. Starting our tests of the 1.5V AA Toshiba Super Heavy Duty batteries with a constant current discharge rate of 0.1A we’ve managed to get 874 mAh capacity and that is actually not bad for a Carbon Zinc battery. Doubling the constant current discharge rate to 0.2A and the batteries still manage to handle pretty well, however by further increasing the load to the 1.5V AA Toshiba Super Heavy Duty Carbon Zinc batteries they are starting to offer significantly less capacity. This is to be expected as Carbon Zinc batteries are intended for use in cases where low power is required.

The performance of the 1.5V AA Toshiba Super Heavy Duty Batteries in our tests:

– 874 mAh at 0.1A load
– 661 mAh at 0.2A load
– 298 mAh at 0.5A load
– 45 mAh at 1.0A load

– 1.065 Wh at 0.1A load
– 0.773 Wh at 0.2A load
– 0.317 Wh at 0.5A load
– 0.046 Wh at 1.0A load


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