Description: This recall involves Nikon EN-EL 15 rechargeable lithium-ion battery packs with lot numbers E and F. The battery pack was sold with the Nikon digital SLR D800 and D7000 model cameras. The battery pack's model number "EN-EL15" and "7.0V 1900mAh 14Wh" are printed on the back of the battery pack. Only battery packs with an "E" or "F" in ninth character of the 14-digit lot number located on the back of the battery pack are included in this recall.
http://www.cpsc.gov/cpscpub/prerel/prhtml12/12219.html
http://www.cpsc.gov/cpscpub/prerel/prhtml12/12219.html