1.2V AA 2400 mAh Powerex Imedion NiMH Battery Tests

9 Dec
2013

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The 1.2V AA 2400 mAh Powerex Imedion NiMH batteries are of the Low Self Discharge Type (LSD NiMH) and are considered to be among the best high capacity and high performance LSD NiMH batteries by many, competing with the like of Sanyo Eneloop for example. These batteries are rated at 2400 mAh typical and 2250 mAh minimum guaranteed capacity and the fact that they are LSD means they are supposed to loose not more than 15% of their capacity per year of storage. They also come pre-charged and can be recharged up to 1000 times. But let us see how good will they perform in our tests and see if they will manage to hold up to their reputation well or not.


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Starting the tests of the 1.2V AA 2400 mAh Powerex Imedion NiMH batteries with a low constant current discharge rate of 0.2A got us 2414 mAh as or with other words we are getting a bit over the typical capacity that they are rated at, so a good start. Increasing the load to 0.5A these batteries still manage to provide capacity higher than their minimum rating of 2250 mAh, so more good results here. And going with even higher constant current loads of 1.0A and 2.0A we are still seeing very good results in terms of useable capacity. So in short, meeting their rating and providing more than good results in both low and high load applications and while not as good as Sanyo Eneloop XX in terms of capacity they are also a bit cheaper than the Eneloops. Anyway, these batteries are very good for what they are rated at and for their price, so you cannot go wrong getting them.

The performance of the 1.2V AA 2400 mAh Powerex Imedion NiMH batteries in our tests:

– 2414 mAh at 0.2A load
– 2283 mAh at 0.5A load
– 2168 mAh at 1.0A load
– 1917 mAh at 2.0A load

– 3.002 Wh at 0.2A load
– 2.781 Wh at 0.5A load
– 2.535 Wh at 1.0A load
– 2.099 Wh at 2.0A load



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