Re: Recharagble batteries?
Eneloops are the best rechargables for a flash unit The only one reasonable exception if if you might want larger 2900mah cells for a large one day shoot. But if you want them to last a month, or even one week, you definitely want Eneloop.
There are other brands of low discharge NiMH now (licensed from Sanyo), good, but why bother with anything but the real source?
Eneloop is NOT from Sony. Eneloop is from Sanyo, they are the Sanyo Eneloop label.
However, the controlling share of Sanyo has recently been acquired by Panasonic, and Panasonic is rebranding most Sanyo items and labels to say Panasonic instead. The name Eneloop is too valuable to be changed however, but now Panasonic is talking about Eneloop. The Sanyo name is disappearing.