To date (16/11/2014), the battery correctly replaces the original battery. Nevertheless, the highest intensity (1800mAh against 1500mAh battery for the original) does not affect the duration of battery life and the operation of the unit. Autonomy is therefore equivalent to the original new battery in normal operation without continuous use Internet or multimedia applications (about 48 hours) but nothing more. Fast shipping and good customer-seller relationship to date (16/11/2014).