in this link gsmarena put 1900mah battery http://www.gsmarena.com/sony_unveils_the_midrange_xperia_l_with_an_ambiance_light-news-5718.php
but in specfication put in 1750mah
An good alternative to the Xperia U, What attracted me to the Xperia U was its price! nothing else, an dual core processor, an reasonably good screen and a decent cam for only USD200.
If this baby stays around USD200, then it would be a instant hit, unfortunately if it fails to do that and asks for a higher pricing, there are tons of alternatives, starting with the USD250 Samsung S2 PLUS, S3 PLUS should be around 300 Dollars.