Do 3.8volt Li-ion batteries exists?

Hi guys!

I knew that Li-ion batteries were 3.6 and 3.7 volt…

But… 3.8 volt

Do 3.8 volt Li-ion batteries really exists?

New technology?

http://www.dealextreme.com/p/genuine-samsung-i9300-galaxy-s3-3-8v-2100mah-replacement-battery-144639#open%20full%20view

Or a mistake?

3.8 is as good a number as 3.6 or 3.7.

Are you asking if a Chinese description of a product is correct ???

Nice one, Boaz! :)