Posts Tagged ‘Eneloop Pro

1-2v-aa-2550-mah-sanyo-eneloop-xx-nimh-battery

The 1.2V AA 2550 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 managing well even uner 5A load. These Sanyo Eneloop XX batteries come with a typical capacity of 2550 mAh, but their minimum guaranteed one is 2450 mAh and on their packaging you can only see the minimum and not the typical capacity written, though they are sold as 2550 mAh. They come pre-charged with 50% of their capacity and our measurement for the initial discharge provided between 1254 and 1257 mAh which is well within the 85% for about a year for batteries made in 12-2012, and now let us see how they will perform fully charged.


1-2v-aa-2550-mah-sanyo-eneloop-xx-nimh-battery-capacity

Starting the tests of the 1.2V AA 2550 mAh Sanyo Eneloop XX NiMH batteries with a low constant current discharge rate of 0.2A got us 2452 mAh as useable capacity or right within the minimum guaranteed capacity, though a bit short from the typical – probably at lower load we can get close to it. But these Sanyo Eneloop XX batteries really shine when you get the load higher, by going to 0.5A and 1.0A we barely see a drop in the capacity we get and even at 2.0A constant current discharge rate we get just about 10% less capacity as compared to the 10 times lower load at 0.2A. According to Sanyo’s datasheet these Eneloop XX batteries are supposed to handle well constant current loads of up to 5.0A without that big of a drop in useable capacity and we do plan on testing that at a later time, but for now we can say that Sanyo has done a really good job with the Eneloop XX batteries.

The performance of the 1.2V AA 2550 mAh Sanyo Eneloop XX NiMH batteries in our tests:

– 2452 mAh at 0.2A load
– 2423 mAh at 0.5A load
– 2385 mAh at 1.0A load
– 2200 mAh at 2.0A load

– 3.096 Wh at 0.2A load
– 2.999 Wh at 0.5A load
– 2.856 Wh at 1.0A load
– 2.436 Wh at 2.0A load

Download the official 1.2V AA 2550 mAh Sanyo Eneloop NiMH battery datasheet…

1-2v-aaa-950-mah-sanyo-eneloop-xx-nimh-battery

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.


1-2v-aaa-950-mah-sanyo-eneloop-xx-nimh-battery-capacity

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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