1.2V AAA 950 mAh Sanyo Eneloop XX NiMH Battery Tests

23 Nov


The 1.2V AAA 950 mAh Sanyo Eneloop XX NiMH batteries are of the third generation of Eneloop batteries from Sanyo and are the model designed for powering high current consuming devices such as photo strobe flash lights, wireless keyboards, mice, game controllers, radio controlled toys and a range of household devices. Eneloop XX is the preferred battery by many photographers for powering their photo flashes and other photographic equipment and even on the batteries you can see written “High capacity eneloop for professional use”. The Eneloop XX series is also from the Low Self Discharge type NiMH batteries and can retain up to 85% percent of its capacity after an year of storage, but these batteries are designed to offer up to 500 recharge cycles mostly due to the fact that they are designed to handle higher loads unlike the standard low-to moderate loads and up to 1800 recharge cycles for the standard Eneloop batteries. These Sanyo Eneloop XX batteries come with a typical capacity of 950 mAh, but their minimum guaranteed one is 900 mAh and on their packaging you can only see the minimum and not the typical capacity written, though they are sold as 950 mAh. They come pre-charged with 50% of their capacity and our measurement for the initial discharge provided between 395 and 401 mAh which is pretty much within the 85% for batteries made in 12-2012, but let us see how they will perform fully charged.


Starting the tests of the 1.2V AAA 950 mAh Sanyo Eneloop XX NiMH batteries with a low constant current discharge rate of 0.1A got us 925 mAh as useable capacity or withing the range between the minimum guaranteed and the typical rating of the batteries. We are used to seen such results from Sanyo with low current loads, but the Eneloop XX batteries are supposed to really shine when they are stressed with higher power requirements. And when increasing the constant current load to 0.2A and 0.5A they still manage to perform great, even at 1.0A they manage to perform really well. These Sanyo Eneloop XX batteries really do great job in providing what is advertised, and though they are not the best performing NiMH batteries in general that we’ve tested, they still do a great job for a high-capacity LSD NiMH solution.

The performance of the 1.2V AAA 950 mAh Sanyo Eneloop XX NiMH batteries in our tests:

– 925 mAh at 0.1A load
– 856 mAh at 0.2A load
– 827 mAh at 0.5A load
– 689 mAh at 1.0A load

– 1.153 Wh at 0.1A load
– 1.047 Wh at 0.2A load
– 0.954 Wh at 0.5A load
– 0.733 Wh at 1.0A load

Download the official 1.2V AAA 950 mAh Sanyo Eneloop NiMH battery datasheet…

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