After a week I can use previously only report the best results over the white Amazon batteries. The housing design is very reminiscent of the eneloop cells from Sanyo, which indeed also come from Japan. They also bear the date of manufacture stamped on the side. Whether this actually is branded Sanyo cells remains sometimes but pure speculation. The battery delivered on 6 March 2014 from the production from August 2013 which is quite acceptable. The summons was surprisingly good, which is not always the case with known competitors. So sometimes a clear recommendation.