Rock Solid!!
These batteries were purchased in 2010 and are still going strong in July of 2017.  They were originally purchased to power high drain external speedlights and battery packs in my photo business and they were absolutely the best.  I have had Maha Powerex and Imedion and they couldn't hold a candle to the Eneloops.  I<br /><br />I currently have 8 sets of 4 and they are rotated among numerous different devices, including flashlights, speedlights, personal fans, keyboards, mice, portable phones, and ham radio handsets.  These are ROCK SOLID batteries even after SEVEN years.  Exceptional reliability!
Rating: 5 stars