Nikon issues service advisory/recall for EN-EL15 batteries
Nikon have issued a recall of certain lots of EN-EL15 batteries, used in the D800/D800E, D7000, and Nikon 1 V1. The battery pack can experience a short circuit causing it to overheat and possibly causing the outside casing to become deformed, posing a potential hazard to consumers. Only a tiny number of users have reported this problem, and it only affects batteries with the letter "E" or "F" as the 9th digit of the battery 14 digit serial number, as pictured below.
If your battery is affected, Nikon will send you a free replacement by calling Nikon USA at 1-800-645-6687