My $14.99 (delivered!) EL14 pack just arrived (from USA not China as I stated incorrectly).
- nice colorful box looking just like any other retail box - a sticker on box with: MADE IN CHINA - printed user manual - pack wrapped in a plastic bag with plastic cap on the end where the contacts are
The pack case build quality is in pair with the Nikon pack I have.
The initial voltage was healthy.
The final voltage after charging it with Nikon charger was healthy, 4.18V/cell.
My D5100 had no issue recognizing it.
Overall a very nice product. The manufacturing cost must be few bucks.