Posts Tagged ‘AA battery

1-2v-aa-2100-mah-fujicell-nimh-battery

The 1.2V AA 2100 mAh Fujicell NiMH batteries are the NiMH model from Fujicell with lower capacity as we’ve already tested their 2800 mAh NiMH that ended up more like 2500 mAh. So far the results we’ve seen from Fujicell batteries are very good in terms of available capacity for the price these batteries are being sold at. Not the highest possible capacity and usually a bit lower than the NiHM rating, though they are probably stating the typical and no minimal capacity is mentioned anywhere, but these batteries are available at a better price than most other similar products. Now we are going to test the 2100 mAh NiMH model from Fujicell to see what it can deliver, note that the 2100 mAh rating is probably the typical and the minimum capacity is probably 2000 mah, though it is not mentioned specifically.


1-2v-aa-2100-mah-fujicell-nimh-battery-capacity

Starting the tests of the 1.2V AA 2100 mAh Fujicell NiMH batteries with a low constant current discharge rate of 0.2A got us 2025 mAh as useable capacity and that is not bad, though a bit short from the stated (typical?) rating and acceptable if the battery is indeed a 2000 mAh minimum rating as we suspect. Going for higher load we are still getting pretty good performance in terms of useable capacity out of these batteries. It is interesting to see how the discharge curves for the voltage drop are kind of “grouped” – for the lower and higher current loads we are using for testing.

The performance of the 1.2V AA 2100 mAh Fujicell NiMH batteries in our tests:

– 2025 mAh at 0.2A load
– 1870 mAh at 0.5A load
– 1613 mAh at 1.0A load
– 1384 mAh at 2.0A load

– 2.456 Wh at 0.2A load
– 2.237 Wh at 0.5A load
– 1.725 Wh at 1.0A load
– 1.458 Wh at 2.0A load

1-5v-aa-fujicell-alkaline-battery

The 1.5V AA Fujicell Alkaline batteries we test here are the standard and only Alkaline batteries that the company makes. We have already tested a few batteries from the brand and we’ve seen an average to above average performance, but this is normal considering that the batteries made by Fujicell are available at quite attractive price and price/performance wise they tend to be a good deal in general. The batteries we tested here were with an expiration date of 06-2019.


1-5v-aa-fujicell-alkaline-battery-capacity

Time for the tests to start for the 1.5V AA Fujicell Alkaline batteries begining with a low constant current discharge rate of 0.1A and the result we got was 1988 mAh as capacity. A good result, but far from the best we’ve seen from other brands, and going for 0.2A we still get an average performance and good capacity. Increasing the constant current discharge load however to 0.5A and 1.0A shows that these batteries do not handle that well higher loads, so they are suitable mostly for low to moderate load applications. The results we’ve seen here confirm our expectations about good price/performance ratio and average to above average results in terms of capacity for Fujicell’s batteries.

The performance of the 1.5V AA Fujicell Alkaline batteries in our tests:

– 1988 mAh at 0.1A load
– 1640 mAh at 0.2A load
– 785 mAh at 0.5A load
– 225 mAh at 1.0A load

– 2.395 Wh at 0.1A load
– 1.949 Wh at 0.2A load
– 0.896 Wh at 0.5A load
– 0.246 Wh at 1.0A load

1-5v-aa-toshiba-e-power-zinc-battery

The 1.5V AA Toshiba E-Power batteries are Carbon-Zinc primary batteries and are the third model in Toshiba’s line of such batteries. According to the manufacturer these batteries are supposed to provide 25% improved performance vs Heavy Duty line and while we still haven’t tested the standard 1.5V AA Toshiba Heavy Duty batteries, we have tested the Super Heavy Duty model, so we could compare these to the E-Power series of Carbon-Zinc products. Just a reminder, the Zinc batteries do offer shorter shelf life and lower capacity and are not suitable for high load applications as compared to the Alkaline primary batteries. The Toshiba E-Power batteries we tested here were with an expiration date 05-2015.


1-5v-aa-toshiba-e-power-zinc-battery-capacity

Time for the tests to start for the 1.5V AA Toshiba E-Power batteries beginning with a low constant current discharge rate of 0.1A and the result we got was 731 mAh as capacity. This is a decent result for a Carbon-Zinc batteries, but compared to the Toshiba Super Heavy Duty batteries the E-Power does provide less useable capacity. Increasing the load to 0.2A and the E-Power still does pretty good, though at 0.5A the performance is not that good already and 1.0A proves to be too much. As expected these batteries do perform well, but are nothing special even for Zinc batteries. They are suitable for low load applications, but not for high load ones where you should definitely consider either good Alkaline batteries or even NiMH batteries.

The performance of the 1.5V AA Toshiba E-Power batteries in our tests:

– 731 mAh at 0.1A load
– 516 mAh at 0.2A load
– 199 mAh at 0.5A load
– 36 mAh at 1.0A load

– 0.874 Wh at 0.1A load
– 0.589 Wh at 0.2A load
– 0.207 Wh at 0.5A load
– 0.036 Wh at 1.0A load


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