Panasonic has quite a long history in the rechargeable battery space now, having launched the first Eneloop cells back in 2005. Those batteries only came in AA and could be recharged 1,000 times.
Panasonic Eneloop CC17N advanced charger for AA & AAA rechargeable Batteries LED indicator charging control system. The Panasonic eneloop BQ-CC661N charger supports charging four AA/AAA batteries ...