For me, no other brand more out of the question, all existing batteries are now so gradually replaced by Sanyo Eneloop batteries. Finally I have the battery in the drawer that I can use when needed and not only has to load every time before. I have until now never has batteries that hold their charge over such a long period of time or only very very small losses during storage have - until just now the Eneloop's (AA, AAA). Clear recommendation without restrictions.