I just picked up AA and AAA in both PowerX pro and Eneloop Pro. In a myriad of devices the PowerX are outlasting the Eneloop by more than 50% per charge! They are roughly the same MAH. A bit over 1000 for the AAA and a bit over 2650 for the AA. I had cycled each first before putting them into service. Just thought this was a good FYI but of course YMMV on this. Batch to batch and other parameters ETC. I am not sure how it would turn out for any of you folks but right here, right now there is simply no contest.